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DoubleL+
A rugged, long-life IoT tracker for persistent visibility. Built for extended deployments and harsh environments. Ideal for trailers, containers and vehicles that require durable and reliable monitoring.
Make enquiry

DoubleL+

Portable, Multi – use device

Download tech specs

Wireless connectivity

4G LTE Cat M1

GPRS (2G)

Connectivity with external sensors

via Bluetooth

Sound alarm

105 dBA@1m, 85dBA@10m

Temperature measurement range

-30°C to 60°C (±0.2°C)

Humidity measurement range

0 to 100% RH (±1.5%)

Barometric measurement range

300 to 1200 mbar

Light measurement range

0.008 to 70,000 lux (0.2%)

Camera characteristics

CMOS VGA color sensor

Images: 160×128 ~ 640×480

Lens: 56°

Battery

Rechargeable LiFePO4

Lifetime up to 18 months

Charging

USB-C Fast Charge 3A/5V

Data Security

HTTPS TLS 1.3

Blockchain method

On-board sensors

Location

Temperature

Humidity

Shock

Platform motion detection

Ext. motion detection

Atmospheric pressure

Tilt

Hall effect

Light

Camera

Localization method

Assisted GNSS (GPS, Glonass, Galileo, Beidu)

Cell-locate

PIR sensor range

12m, FOV: 69° x 69°

Performance

Water / dust proof IP67

Impact resistant IK08

UV resistant

Chemicals resistant

Flame-proof

Other Features

Recording

Real-time alarms

OTA FW update

OTA configuration

Inter-devices communication

Global coverage

Communication with backend system & mobile app

A robust IoT device, designed for operations that demand continuous asset visibility with minimal maintenance. Equipped with an advanced sensor package, with integrated camera and optional sound alarm; And up to 18 months of battery life. Ideal for permanent installations on mobile and fixed assets.
DoubleL+ Hero

Key capabilities.
Critical advantages.

Intelligent multi-sensors
Measures temperature, shock, tilt, motion, light, humidity, accelerometer, barometer and PIR.
Built-in camera
Capture photo snapshots of loading, damage or intrusion.
Sound alarm
Triggers a sound alarm when intrusion is detected
Smart connectivity
Connect with 4G, 2G, NB-IoT and Bluetooth.
Flexible mounting
Mount via magnets, screws, hook or adhesive.
Lock compatible
Supports integration with F-Lock where needed.
Vehicle-integrated power
Can connect to 12V/24V power outlets for constant operation.
Long life battery
Up to 18 months battery life depending on transmission frequency.

Use cases

Long-duration tracking of containers and trailers, providing continuous visibility and security across extended journeys and storage periods.
Smart fleet logistics with real-time visibility and intelligent monitoring to reduce downtime and improve operational efficiency.
Condition monitoring in harsh or remote environments, ensuring reliable performance, early fault detection and continuous asset visibility.
Integrates with access control and security systems to enhance oversight, streamline operations and strengthen overall protection.

With Omni

An intelligent platform for high-performing, sustainable logistics.

Trusted precision
Real-time precision for better decisions across every operation.
At global scale
Fast, reliable infrastructure built for complex operational data.
Fully customisable
Seamless integration from assets and data to entire supply chains.
Anywhere, anytime
Unified control and visibility across field, transit and HQ.

Omni

Get started with Omni

Try Omni

CALCULATION DATA DEBUGGER

View Raw PHP Data Array 
Array
(
    [types] => Array
        (
            [Type_20D_tn_km] => Array
                (
                    [name] => 20D
                    [vars] => Array
                        (
                            [road_additional_cargo_$] => 0.24
                            [rail_additional_cargo_$] => 0.24
                            [sea_additional_cargo_$] => 0.24
                            [road_co2_savings_kg] => 0.014448
                            [rail_co2_savings_kg] => 0.00372
                            [sea_co2_savings_kg] => 0.0017736
                            [road_fuel_savings_lt] => 0.0056
                            [rail_fuel_savings_lt] => 0.0014
                            [sea_fuel_savings_lt] => 0.0006
                            [road_km_year] => 100000
                            [rail_km_year] => 88000
                            [sea_km_year] => 124488
                            [t_wooden_floor_weight_kg] => 318
                            [t_biomass_used_for_one_woode_floor_kg] => 648.98
                            [t_number_of_the_wooden_floors_used] => 2
                        )

                )

            [Type_40D_tn_km] => Array
                (
                    [name] => 40D
                    [vars] => Array
                        (
                            [road_additional_cargo_$] => 0.56
                            [rail_additional_cargo_$] => 0.56
                            [sea_additional_cargo_$] => 0.56
                            [road_co2_savings_kg] => 0.0337
                            [rail_co2_savings_kg] => 0.0087
                            [sea_co2_savings_kg] => 0.0041
                            [road_fuel_savings_lt] => 0.013
                            [rail_fuel_savings_lt] => 0.0033
                            [sea_fuel_savings_lt] => 0.0015
                            [road_km_year] => 100000
                            [rail_km_year] => 88000
                            [sea_km_year] => 124488
                            [t_wooden_floor_weight_kg] => 551
                            [t_biomass_used_for_one_woode_floor_kg] => 1124.49
                            [t_number_of_the_wooden_floors_used] => 2
                        )

                )

        )

    [common_vars] => Array
        (
            [no_of_boxes] => 1
            [operational_life_years] => 10
            [road_cost_of_cargo_$_lt] => 0.115
            [rail_cost_of_cargo_$_lt] => 0.017
            [sea_cost_of_cargo_$_lt] => 0.0013
            [road_cost_of_fuel_$_lt] => 1.57
            [rail_cost_of_fuel_$_lt] => 1.57
            [sea_cost_of_fuel_$_lt] => 0.48
            [road_default_fuel_price_$] => 1.961
            [rail_default_fuel_price_$] => 1.961
            [sea_default_fuel_price_$] => 1
            [t_percentage_of_wood_biomass_to_plywood] => 0.49
            [t_average_co2_sequester_kg] => 0.171
            [t_average_tree_weight_kg] => 200
        )

    [tabs] => Array
        (
            [0] => Array
                (
                    [title] => Lower COâ‚‚
                    [shown_to_types] => Array
                        (
                            [0] => Type_20D_tn_km
                            [1] => Type_40D_tn_km
                        )

                    [inputs] => Array
                        (
                            [0] => Array
                                (
                                    [title] => No. Container
                                    [input_name] => no_container
                                    [default_value] => $common_variables.no_of_boxes
                                    [prefix_text] => 
                                    [sufffix_text] => 
                                )

                            [1] => Array
                                (
                                    [title] => Years active
                                    [input_name] => years_active
                                    [default_value] => $common_variables.operational_life_years
                                    [prefix_text] => 
                                    [sufffix_text] => 
                                )

                            [2] => Array
                                (
                                    [title] => Annual distance (km)
                                    [input_name] => annual_distance_road
                                    [default_value] => 72405
                                    [prefix_text] => 
                                    [sufffix_text] => Road
                                )

                            [3] => Array
                                (
                                    [title] => Annual distance (km)
                                    [input_name] => annual_distance_rail
                                    [default_value] => 37055
                                    [prefix_text] => 
                                    [sufffix_text] => Rails
                                )

                            [4] => Array
                                (
                                    [title] => Annual distance (km)
                                    [input_name] => annual_distance_shipping
                                    [default_value] => 280094
                                    [prefix_text] => 
                                    [sufffix_text] => Shipping
                                )

                        )

                    [outputs] => Array
                        (
                            [0] => Array
                                (
                                    [title] => kgCOâ‚‚ reduction (est.)
                                    [prefix_text] => 
                                    [content] => Array
                                        (
                                            [0] => Array
                                                (
                                                    [calculation] => $self.years_active
*
$self.no_container
*
$active_type_vars.road_co2_savings_kg
*
$self.annual_distance_road
                                                    [description] => road
                                                    [prefix_text] => 
                                                )

                                            [1] => Array
                                                (
                                                    [calculation] => $self.years_active
*
$self.no_container
*
$active_type_vars.rail_co2_savings_kg
*
$self.annual_distance_rail
                                                    [description] => rail
                                                    [prefix_text] => 
                                                )

                                            [2] => Array
                                                (
                                                    [calculation] => $self.years_active
*
$self.no_container
*
$active_type_vars.sea_co2_savings_kg
*
$self.annual_distance_shipping
                                                    [description] => sea
                                                    [prefix_text] => 
                                                )

                                        )

                                )

                            [1] => Array
                                (
                                    [title] => COâ‚‚ offset (est.)
                                    [prefix_text] => 
                                    [content] => Array
                                        (
                                            [0] => Array
                                                (
                                                    [calculation] => (
$active_type_vars.t_biomass_used_for_one_woode_floor_kg
*
$active_type_vars.t_number_of_the_wooden_floors_used
/
$common_variables.t_average_tree_weight_kg
)
*
$self.no_container
                                                    [description] => trees saved
                                                    [prefix_text] => 
                                                )

                                            [1] => Array
                                                (
                                                    [calculation] => (
$common_variables.t_average_co2_sequester_kg
*
$active_type_vars.t_biomass_used_for_one_woode_floor_kg
*
$self.years_active
)
+
(
$common_variables.t_average_co2_sequester_kg
*
$type_values.Type_20D_tn_km.t_biomass_used_for_one_woode_floor_kg)
*
6
                                                    [description] => kgCOâ‚‚
                                                    [prefix_text] => 
                                                )

                                        )

                                )

                            [2] => Array
                                (
                                    [title] => Total kgCOâ‚‚ reduced, reducing global warming
                                    [prefix_text] => 
                                    [content] => Array
                                        (
                                            [0] => Array
                                                (
                                                    [calculation] => (
$common_variables.t_average_co2_sequester_kg
*
$active_type_vars.t_biomass_used_for_one_woode_floor_kg
)
*
6
+
$self.years_active
*
$self.no_container
*
$type_values.Type_20D_tn_km.sea_co2_savings_kg
*
$self.annual_distance_shipping
+
$self.years_active
*
$self.no_container
*
$type_values.Type_20D_tn_km.rail_co2_savings_kg
*
$self.annual_distance_rail
+
$self.years_active
*
$self.no_container
*
$type_values.Type_20D_tn_km.road_co2_savings_kg
*
$self.annual_distance_road
                                                    [description] => kgCOâ‚‚
                                                    [prefix_text] => 
                                                )

                                        )

                                )

                        )

                )

            [1] => Array
                (
                    [title] => Extra cargo
                    [shown_to_types] => Array
                        (
                            [0] => Type_20D_tn_km
                            [1] => Type_40D_tn_km
                        )

                    [inputs] => Array
                        (
                            [0] => Array
                                (
                                    [title] => No. Container
                                    [input_name] => no_container
                                    [default_value] => $common_variables.no_of_boxes
                                    [prefix_text] => 
                                    [sufffix_text] => 
                                )

                            [1] => Array
                                (
                                    [title] => Years active
                                    [input_name] => years_active
                                    [default_value] => $common_variables.operational_life_years
                                    [prefix_text] => 
                                    [sufffix_text] => 
                                )

                            [2] => Array
                                (
                                    [title] => Annual distance (km)
                                    [input_name] => annual_distance_road
                                    [default_value] => 72405
                                    [prefix_text] => 
                                    [sufffix_text] => Road
                                )

                            [3] => Array
                                (
                                    [title] => Annual distance (km)
                                    [input_name] => annual_distance_rail
                                    [default_value] => 37055
                                    [prefix_text] => 
                                    [sufffix_text] => Rails
                                )

                            [4] => Array
                                (
                                    [title] => Annual distance (km)
                                    [input_name] => annual_distance_sea
                                    [default_value] => 280094
                                    [prefix_text] => 
                                    [sufffix_text] => Shipping
                                )

                            [5] => Array
                                (
                                    [title] => Cargo price (per tkm)
                                    [input_name] => road_cargo_price_per_lt
                                    [default_value] => $common_variables.road_cost_of_cargo_
$_lt
                                    [prefix_text] => $
                                    [sufffix_text] => Road
                                )

                            [6] => Array
                                (
                                    [title] => Cargo price (per tkm)
                                    [input_name] => rail_cargo_price_per_lt
                                    [default_value] => $common_variables.rail_cost_of_cargo_
$_lt
                                    [prefix_text] => $
                                    [sufffix_text] => Rail
                                )

                            [7] => Array
                                (
                                    [title] => Cargo price (per tkm)
                                    [input_name] => sea_cargo_price_per_lt
                                    [default_value] => $common_variables.sea_cost_of_cargo_
$_lt
                                    [prefix_text] => $
                                    [sufffix_text] => Shipping
                                )

                        )

                    [outputs] => Array
                        (
                            [0] => Array
                                (
                                    [title] => Additional cargo by tnkm (est.)
                                    [prefix_text] => 
                                    [content] => Array
                                        (
                                            [0] => Array
                                                (
                                                    [calculation] => $self.years_active
*
$self.no_container
*
$self.annual_distance_road
*
$active_type_vars.road_additional_cargo_
$
                                                    [description] => road
                                                    [prefix_text] => 
                                                )

                                            [1] => Array
                                                (
                                                    [calculation] => $self.years_active
*
$self.no_container
*
$self.annual_distance_rail
*
$active_type_vars.rail_additional_cargo_
$
                                                    [description] => rail
                                                    [prefix_text] => 
                                                )

                                            [2] => Array
                                                (
                                                    [calculation] => $self.years_active
*
$self.no_container
*
$self.annual_distance_sea
*
$active_type_vars.sea_additional_cargo_
$
                                                    [description] => sea
                                                    [prefix_text] => 
                                                )

                                        )

                                )

                            [1] => Array
                                (
                                    [title] => Additional income or savings (est.)
                                    [prefix_text] => 
                                    [content] => Array
                                        (
                                            [0] => Array
                                                (
                                                    [calculation] => (
$self.years_active
*
$self.no_container
*
$self.road_cargo_price_per_lt
*
$self.annual_distance_road
*
$active_type_vars.road_additional_cargo_
$)
+
(
$self.years_active
*
$self.no_container
*
$self.rail_cargo_price_per_lt
*
$self.annual_distance_rail
*
$active_type_vars.rail_additional_cargo_
$)
+
(
$self.years_active
*
$self.no_container
*
$self.sea_cargo_price_per_lt
*
$self.annual_distance_sea
*
$active_type_vars.sea_additional_cargo_
$)
                                                    [description] => kgCOâ‚‚
                                                    [prefix_text] => $
                                                )

                                        )

                                )

                        )

                )

            [2] => Array
                (
                    [title] => Fuel saved
                    [shown_to_types] => Array
                        (
                            [0] => Type_20D_tn_km
                            [1] => Type_40D_tn_km
                        )

                    [inputs] => Array
                        (
                            [0] => Array
                                (
                                    [title] => No. Container
                                    [input_name] => no_container
                                    [default_value] => $common_variables.no_of_boxes
                                    [prefix_text] => 
                                    [sufffix_text] => 
                                )

                            [1] => Array
                                (
                                    [title] => Years active
                                    [input_name] => years_active
                                    [default_value] => $common_variables.operational_life_years
                                    [prefix_text] => 
                                    [sufffix_text] => 
                                )

                            [2] => Array
                                (
                                    [title] => Annual distance (km)
                                    [input_name] => annual_distance_road
                                    [default_value] => 72405
                                    [prefix_text] => 
                                    [sufffix_text] => Road
                                )

                            [3] => Array
                                (
                                    [title] => Annual distance (km)
                                    [input_name] => annual_distance_rail
                                    [default_value] => 37055
                                    [prefix_text] => 
                                    [sufffix_text] => Rails
                                )

                            [4] => Array
                                (
                                    [title] => Annual distance (km)
                                    [input_name] => annual_distance_sea
                                    [default_value] => 280094
                                    [prefix_text] => 
                                    [sufffix_text] => Shipping
                                )

                            [5] => Array
                                (
                                    [title] => Fuel price (per lt)
                                    [input_name] => road_fuel_price_per_lt
                                    [default_value] => $common_variables.road_default_fuel_price_
$
                                    [prefix_text] => $
                                    [sufffix_text] => Road
                                )

                            [6] => Array
                                (
                                    [title] => Fuel price (per lt)
                                    [input_name] => rail_fuel_price_per_lt
                                    [default_value] => $common_variables.rail_default_fuel_price_
$
                                    [prefix_text] => $
                                    [sufffix_text] => Rail
                                )

                            [7] => Array
                                (
                                    [title] => Fuel price (per lt)
                                    [input_name] => sea_fuel_price_per_lt
                                    [default_value] => $common_variables.sea_default_fuel_price_
$
                                    [prefix_text] => $
                                    [sufffix_text] => Shipping
                                )

                        )

                    [outputs] => Array
                        (
                            [0] => Array
                                (
                                    [title] => Fuel savings by litre (est.)
                                    [prefix_text] => 
                                    [content] => Array
                                        (
                                            [0] => Array
                                                (
                                                    [calculation] => $self.years_active
*
$self.no_container
*
$self.annual_distance_road
*
$active_type_vars.road_fuel_savings_lt
                                                    [description] => road
                                                    [prefix_text] => 
                                                )

                                            [1] => Array
                                                (
                                                    [calculation] => $self.years_active
*
$self.no_container
*
$self.annual_distance_rail
*
$active_type_vars.rail_fuel_savings_lt
                                                    [description] => rail
                                                    [prefix_text] => 
                                                )

                                            [2] => Array
                                                (
                                                    [calculation] => $self.years_active
*
$self.no_container
*
$self.annual_distance_sea
*
$active_type_vars.sea_fuel_savings_lt
                                                    [description] => sea
                                                    [prefix_text] => 
                                                )

                                        )

                                )

                            [1] => Array
                                (
                                    [title] => Cost savings (est.)
                                    [prefix_text] => 
                                    [content] => Array
                                        (
                                            [0] => Array
                                                (
                                                    [calculation] => (
$common_variables.road_cost_of_fuel_
$_lt
*
$self.years_active
*
$self.no_container
*
$self.annual_distance_road
*
$active_type_vars.road_fuel_savings_lt
)
                                                    [description] => kgCOâ‚‚
                                                    [prefix_text] => $
                                                )

                                        )

                                )

                        )

                )

        )

)

DoubleL+

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