Transmitters with inputs for RTD (PT100) temperature sensors

50 Series

GS / GD52 / GS / GD52H

Wired sockets for 2 x 4 wire RTDs (-100 to +200°C).

'D' Indicates LCD display.

'H' indicates (0 to +300°C) range.

GDLM52 (available soon)

The GenII LM series retains the standard GenII transmitter specification and adds 50,000 readings of built-in backup memory. The memory is used in continuous overwrite mode. This means many weeks of data can be held in the transmitter, depending on the number of channels in use.




Connectors are included. If you require sensors, please order them 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 Range Resolution Accuracy
GS52/GD52 2 x 2 or 4 wire Pt100 temperature -100 to 200°C 0.1°C ±0.3°C
GS52H 2 x 2 or 4 wire Pt100 temperature 0 to 300°C 0.1°C ±0.3°C

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


GenII M Series transmitters with backup memory