U-Prox indoor siren

specs

Sound pressure level at 1 m: 85 dB
Adjustable volume in 3 levels
Incorporates adjustable visual indicator
ISM band radio interface, multi-speed with several channels
RF frequency: 868 ~ 868.6MHz
Secure two-way communication with tamper detection and 256-bit key
Power: 2 CR123A lithium batteries (included)
Consumption: <5 µA (standby), <35 mA (transmit), <70 mA (alarm)
Battery life of up to 5 years
-10 ° C ~ + 55 ° C operating temperature
Black housing
Dimensions: 84.5 (W) x 84.5 (H) x 24.3mm
Weight: 134g