Solar Sync ET sensor can share one sensor transmitter with multiple Hunter AC controllers. To accomplish this setup, each controller would need a separate wireless Solar Sync Receiver (P/N: WSSR). Each receiver will need to communicate with the same transmitter.
WSS-SEN (wireless Solar Sync) comes as a kit with one receiver and one transmitter, each has their communication address preset, for the extra receiver (WSSR) you will need to address it to the transmitter.
NOTE: Units purchased as a kit will already have their communication address preset. No addressing is necessary, however, if the receiver or transmitter is replaced you need to reset the address.
Each transmitter is produced with a unique address. A receiver must learn this address to work with that transmitter. This step is only necessary if transmitters and receivers are purchased separately.