A753 GSM GPRS Telemetry Data Logger

  • Best In Class GSM / GPRS Telemetry Datalogger
  • 60 Signal Inputs & Outputs Including SDI12, modbus, analog (0-2.5V or 4-20mA), digital IN (up to 500Hz)/OUT
  • Supported by experienced engineers
  • RTU to RTU communication
Product Options


The A753 GSM / GPRS Telemetry datalogger is a comprehensive datalogger with in-built power provision for attached sensors. is a complete overhaul of its successful predecessor the A733 GPRS and can be used for a huge variety of applications.

Water quality sondes such as the Manta2 have digital SDI-12 interfaces to increase compatibiliy and accuracy. A753 allows the operation of up to 40 SDI-12 or modbus (requires additional low cost option adapter), 12 0-2,5V inputs with 16-bit resolution for accurate analog sensors along with 4 digital pulse inputs and 4 digital outputs for switching processes on/off such as valves or pumps.

The A753 telemetry datalogger is without doubt the most cost-effective and comprehensive datalogger of its kind. Whether you wish to connect to water meters, turbidity sensors, water quality sondes, weather stations, groundwater sensors, 30 level sensors, turn pumps on/off, the A753 telemetry datalogger is without doubt the only instrument that can do the job.

Manufactured by: Adcon Telemetry
Model: A753 GSM GPRS Telemetry Data Logger

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


All round RTU, extremely compact, extremely rugged, extremely low-power
WMO compliant
Flood warning, dam monitoring
Agriculture & public water supply
Science, research & development, and much more
SDI-12 water quality station
ModBus Sensors


Dimensions 160 x 60 x 80 mm
Weight 1.200gr.
Ingress Protection Class IP-67
Temperature Range -30°C to +65°C
Case Powder-Coated Aluminium
Scerw Connections Flange sockets of nickel-plated brass, stainless cover screws
Connectors (all connectors IP67 if properly mated or capped) 4x Binder M9 7-pin to sensors
1x Binder M9 5-pin to solar cell /
power supply
1x TNC Antenna connector
Power Supply 6,2 V NiMH battery 3.100 mAh +
solar cell / mains adapter
I/O-Ports 12x analog in ( 0 ... 1/2,5 VDC ;
including 3x 0 ... 150mV )
4x pulse counter
4x digital in/out ( 0 ... 3V TTL)
40x SDI-12 values
Sensor excitation - unregulated batt. 5,6V ... 7,2V
- regulated from 3,3V ... 5,5V
Sampling Interval User specific (from 10sec. to 12h)
Measuring Method Synchronous & asynchronous
Internal Memory 2MB for up to 500.000 values
Resolution 16-Bit @ 0 ... 2,5 V ; 2x 50Hz and
2x 500Hz pulse counter
Wind Port C Measures wind 4x per second and
calculates 3-sec. average
Rain Port D Time stamps every pulse
Digital Events Records and time stamps every status
change on a digital input
Operating time (without
charging of internal
In standard mode up to 21 days, in
power-save mode up to 6 months;
depends on slot-time, transmission
rate, and sensors
Frequency Range 850 / 900 / 1800 / 1900 MHz
Rx Sensitivity -106 dBm
Tx Output Power Max. 2 W (depends on frequency)
Transmission Distance Max. 36km as per GSM standard
Expansion (optional) Internal Modbus IF via RS 485
Antenna Omnidirectional quad-band, 2dBi
Type approvals R&TTE, FCC Part 15, ACMA Australia,
Industry Canada, etc.


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