WAL-220 is kind of wireless indoor siren. It used to be triggered and send out the alarm sound to alert user for any unexpected event happened. You may turn it OFF by manual button or remote control by wireless.

Function Specification:

- ZigBee Pro (2.4GHz) RF interface

- LED indicator

- Min. 80dB @ 30cm

- Battery or AC adapter (DC 5V/0.5A up) selectable

- Wall-mount & tamper-proof

- RSSI (Received Signal Strength Indication) supported