Wireless smoke alarm set, consisting of PROTECTOR KRF TCV 2G wireless transceiver and PROTECTOR K 9 V lithium smoke alarm, 30 detectors can be networked in 8 groups, forwarding of the alarm signal within the wireless group from the transceivers within range of the person who caused the alarm, display of alarm and battery fault on the PROTECTOR control panel, compatible with PROTECTOR RF IO module, smoke alarm and transceiver share one battery