UIS WAL-220 Wireless Alarm Switch
                        
                        
                     
                    
                        Key Specifications
                        
                            
                            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