Extra Wireless Plug-in Receiver for HTZSAFE Wireless Alarms- Up to 32 Zones and 35 Optional Melodies- 4 Adjustable Volume Levels,White

All the HTZSAFE sensors can work with all the HTZSAFE receivers. Up to 32 HTZSAFE sensors can be added to one receiver or multiple receivers. 35 optional melodies and match different sensor with different melody. 4 adjustable volume levels.