The Series SYM 32 tone high output audible alarms are contructed in a weatherproof housing allowing use in external locations or environments where both high noise levels and moisture are present. Features: Ultra high up to 120d - B(A) output 32 tones Low current to reduce power supply requirements Sychronized start Double entry backbox for simplifi ed installation Indoor/Outdoor Nominal Voltage: 9 - 28VDC Current Consumption (tone dependant): Max. 240m - B Alarm Tones: 32 IP Rating: IP66 Color: Off White Monitoring Mode: Polarized Diode Operating Temperature: -25o - C to 70o - C Volume Control: 0 to -20d