(Serial/RS485/Ethernet 10/100M)

PM035   –    IP67 Weather Proof Low Power Logger with 4G LTE/3G  and GPS


Model : PM035
GSM Modem: LTE 4G
GPS  50 Channel

Inputs and Outputs
2 Analog 4-20mA, (0-5V),
 6 Channel Digital Contact/RainGauge, 1 Aud Relay Output (Contact @1.1A)

ADC: 16 bit resolutions

Power Input

7VDC to 28VDC, 10mA in Full active (GSM inactive) 

External Serial Interface

RS232C or RS485 for Sensor or Meter Interfacing such as SG-24 24 Bottle AutoSampler, Energy Meter, Level Sensors, Water Qualtities sensors, Weather Sensors, Flow Transmitter, Gas Transmitter, Analyzers.



The PM035 is a extremely low power Logger/Telemetry unit designed to operate external power or self power for up to 5 Years *  (SMS Alert only for float switch application) self powered operation.  . This telemetry unit has built in LTE modem CAT1 and 50 channel GPS for timing and tracking. Built in  logger memory (32MBYTE non volatile flash memory) and a FAT32 file systems MicroSD (4GB ) . Interface supports Serial, RS485, ModBus Serial, Optional Ethernet TCP-IP RJ45 (support Modbus-TCP)

The unit is light weight, weather proof, draw less than 100uA in special deep power down mode for special custom mode.

Unit can be power external from 7VDC to 28VDC. Cable connector are IP68 rated.

Sonic supports 2 channel of analog inputwith 16bit ADC resolutions, and 6 channel of digital input (include 2 counting channel) for float switch alert application or rainguage and pulse counting input application

Built In Battery Backed RealTime Clock/Calender.

All Event are date and time stamps to record the actual time of alarm. RealTime Clock/Calender has its own Lithium Battery Power Source for at least 10 years of Clock Calender and Alarm Functions. The battery is independent of the primary battery for the entire unit.


Onboard Solid State Flash Memory provides 32MBYTE of Datalog memory that is not affected by battery. MicroSD is equipped with 16GB of FAT32 SDCard, and 32KB Infinite read/write Ferromagnetic memories. 

Interfacing to External Equipments and Sensors

Customisation are welcome to interface the logger telemetry to external sensors including:
24 bottle Fixed Aqueous AutoSampler, or Hach Autosamplers.

Testech TT-100 Digital water Level Sensors (0—6 Meters , +/- 0.25% for Level sensing) or any 4-20mA/RS485 sensors.
Float Switch for discrete Level Sensing.
Testech PID900  Fixed VOC Sensor.
Xylem Global Water RainGauge, Level Sensors (4-20mA), PH , ORP, DO.

Insitu Water Level MultiParameter probes (PH, Level, DO)
Others: Customer specified Digital Sensors for Water and Weathers sensors