This is a replacement cabled transmitter circuit board (often called the SIM board - Sensor Interface Module) for the UK and EU versions of the wireless VP2 ISS. This part is compatible with cabled VP2 stations made from Jan 2016 on (revision AS or later) and is not compatible with the older VP1 stations.
This board should be paired with temp/hum sensor 7346.070. It is not recommended for use with the older 7346.166 or 7346.174 temp/hum sensors unless the correct temperature offset is carefully entered into the console.
If upgrading an older (pre-2016) VP2 then we suggest replacing both transmitter board (7345.952) and temp/hum sensor (7346.070) as a pair to ensure correct T/H readings to the latest enhanced sensor specification.
To replace only the transmitter board on VP2 stations made before 2016 on (AR revision and earlier) see part 7345.977.
This 7345.952 part is supplied fitted to the white backplate. This is the only format in which the transmitter board is readily available.
Detailed installation instructions are shown in a video on the Davis website at: