Transmitters with inputs for voltage and current sensors

40 Series


Wired sockets for 2 x voltage/current inputs with sensor supply.


Wired sockets for 4 x voltage/current inputs, sensor supply and external supply switch.


Intended for use with any sensor where an averaged rather than instantaneous value at the time of transmission is required. The averaging technique includes values that can change during a transmission interval. At the point of transmission the averaged value of the last 30 values, sampled every 10 seconds per channel, is sent.
External PSU must be ordered separately.




WBG Wall bracket docking kit

This kit enables fitment of the transmitter's built-in wall bracket to difficult or uneven surfaces. The kit provides additional docking security.

The following products are supported:

  • All GD, GC, GL and GS series transmitters
  • RP250GD repeater and RC250 receiver


Transmitter Specification

Model(s) Sensors
GS42 2 x external voltage or current
GS44 4 x external voltage or current
GS42AVE GS42 with averaging function
GS44AVE GS44 with averaging function

All models:

Range Resolution Accuracy
0-100mV DC 0.02/0.03mV ±0.06mV
0-1V DC 0.25mV ±0.5mV
0-10V DC 2.50mV ±5mV
0-20mA DC ~5uA ±20uA
4-20mA DC 0.05% ±0.1%
other ranges available

Common GenII Transmitter Specification

RF specification: EN300-220
RF power: 10mW
Environment specification  
  Compliant to EN300-220: -10 to +55°C
  Actual: -30 to +65°C
  Humidity: 100% non condensing
Environmental rating: IP40
Dimensions (footprint): 78 x 41mm
Transmission interval range: 1 sec to 4 hours
Indicator (red LED): transmit active/on/off
Control switch (concealed): test mode / hibernate
Antenna socket: SMA


Common to all transmitters

Gen II Quick Start Instructions

Specific to this family of transmitters

User Instructions

GS42 and GS42E connectors and links
GS44, GS44E and GS44H connectors and links
User Instructions For GS44AVE