Transmitters with inputs for solar radiance (pyranometer)


The GS41Acf is a conformally coated GS41A transmitter. It provides one physical pyranometer input and two calculated channels.

  • The physical input is for use with the Skye SKS1110 or Kipp and Zonen CMP3 pyranometer.
  • The calculated channels are average value (5 minute rolling average with 30 second period) and cumulative value (i.e. to give Watt hours rather than Watts).



The OD41A is a weatherproof (IP65 rated) polycarbonate enclosure, primarily intended for wall mounting and is supplied with the self powered GS41Acf transmitter installed. The GS41Acf is for use with a pyranometer.

  • Supplied with a GS41Acf transmitter installed.
  • The transmitter can be installed together with an additional battery pack (type SP1118) for more than 2 years operation (or where very fast data logging is a requirement).
  • The enclosure is provided with 4 fixing holes that are obscured when the cover is fitted.



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



Pole mounting bracket - a robust, pre-drilled stainless steel U bracket with securing nuts.

The following products are compatible:

  • CMP3
  • SKS1110


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

Transmitter Specification

Model(s) Sensors Range Resolution Accuracy
GS41Acf 1 x external pyranometer (e.g. Skye SKS1110 or Kipp and Zonen CMP3) 
1 x calculated average value (5 minute rolling average with 30 second sample)
1 x calculated cumulative (Integrated) value 
0-65,000 Wh

OD41 case

Dimensions: Width:120mm x Height:202mm x Depth:85mm


Common to all transmitters

Gen II Quick Start Instructions

Specific to this family of transmitters


GS41Acf and OD41A Datasheet

User Instructions:

User Instructions For GS41A