The RC-28 is designed to be used as a wireless door bell button. It works with the UC-260 receiver as well as the UC-216, UC-222 and the UC-280 receivers. SpecificationsPower 6 V battery (L1016 type) Battery life time typically 1 year Frequency 433.92 MHz Operating environment Outdoor sheltered Operating temperature from -20 oC to +50 oC Operating humidity from 25 % to 75 % Storage temperature from -20 oC to +70 oC Complies with EN ETSI 300220, ETS 300683 and EN 50134.
The RC-28 is designed to be used as a wireless door bell button