These accessory relays plug into the back of the DTM04 Holding Tank Monitor panel to shut down the toilet when the holding tank is full.
This same relay can also be plugged into the back of the DTMF04 (single) Fresh Water Tank Monitoring Panel to shut down your fresh water pump when the fresh water tank becomes empty.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
www.P65Warnings.ca.gov