1.Rated voltage: 9vdc 2.Static current:10ua 3.Alarm current:15ma 4.Working temperature: -10ãc«+50ãc 5.Humidity:95%rh 6.Alarm mode: sound & flash 7.Monitoring area: 20 square meter 8.Product size: 107*35mm 9.Execute criterion:gb4715-1993 10.Product weight:0.17kg