EWS1 Indoor wireless siren
Wireless indoor siren, the EWS1 can be simply programmed to the EPIR2 to give a loud audible signal when an alarm situation has occurred.
Battery type: 1.5V Alkaline AA type
Number of batteries: 3
Battery operation time: 18 months
Radio transmitter-receiver frequency: 866.1 MHz - 869.5 MHz
Range of Operating Temperatures: -20...+55°C
Radio communication range: 30 meters in premises; 150 meters in open areas