Astra Telematics AT241/242

Documentation and installation instructions for Astra Telematics AT241/242.

The Astra Telematics AT241/242 is a compact and cost-effective telematics device suitable for various vehicle types, including cars, motorcycles, and boats. It offers essential features such as GPS tracking, cellular connectivity, and OBD2 support.

Data sheet

The following excerpt is the most relevant information for marine and on-road applications from the official data sheet. Please always refer to the official documentation for the most accurate and up-to-date information.

Feature	Specification
Mobile Network Communications	LTE-Cat 1 (4G) - others possible
Maximum Operating Voltage	65.0V
Antennas	Internal
BLE (Bluetooth) Option	Yes
SIM Card Format	Micro
Accelerometer / tamper sensor	Yes
Battery Capacity (internal)	510mAh (6 days low power mode, 24h reporting)
Battery Life (LP mode, 24hr reporting)	6 days
Ingress Protection	IP67
Digital Ins / Outs	6 / 5
ADC Inputs	2
CAN bus	Yes (NMEA2000 support, custom protocols)

Installation instructions

Please download the printable installation manual for detailed installation instructions.

NMEA 2000 support scope

Disclaimer
Our NMEA 2000 integration natively supports only the items listed below. Any additional parameters, multi-engine/tank setups, or proprietary PGNs/features must be reviewed and agreed separately (feasibility, timeline).

Category	Property
Battery	State of Charge % (DC type 0)
	State of Health % (DC type 0)
	Battery Capacity (Ah, DC type 0)
	Charger Enable / Disable
	Time to Empty
	Distance to Empty
Fuel & Trip	Fuel Level % (type 0)
	Fuel Rate
	Trip Fuel Used
	Trip Run Time
Engine	Oil Level % (type 4)
	Engine Oil Pressure
	Engine Oil Temperature
	Engine Temperature
	Alternator Voltage
	Engine Coolant Pressure
	Fuel Pressure
	Percent Engine Load
	Percent Engine Torque
	Total Engine Hours
	Engine Discrete Status 1
	Engine Discrete Status 2
Environment/Depth	Water Depth at Transducer
	Water Depth Transducer Offset
	Wind Speed
	Air Temperature

Notes

• Applies to one engine and one tank.
• Compatibility depends on the vessel network publishing these PGNs per NMEA 2000 conventions.
• Extensions (e.g., multiple engines/tanks, additional sensors, custom/proprietary PGNs) require a separate technical discussion.

“NMEA 2000” is a trademark of the National Marine Electronics Association (NMEA).