97Db Backup Alarm – BU97Ll

These rugged alarms have passed a one million cycle test and meet O.S.H.A., Bureau of Mines and State Regulations. 12 month warranty. Electronics, sealed in urethane, resist tough environmental conditions.97 db volume and MADE IN THE USA • Decibel ratings for all alarms are +/-4dB (A) @ 4′, as specified in SAE J994 (March, 1985) • Operational temperature range: -40° F to +170° F (-40° C to +77° C)