ChinaPiezoAlarmFactory Technical parameters Measuring condition Part shall be measured under a condition (Temperature: 5??5?? Humidity: 45%??5%R.H., Atmospheric pressure: 860 ??060hPa) unless the standard condition (Temperature: 25?3?? Humidity: 60?10%R.H. Atmospheric pressure: 860 ??060hPa) is regulated to measure. Rated Voltage12VDC Operating Voltage6??15VDC Rated CurrentMax.30mA, at 12VDC Sound Output at 10mMin.95dB, at 12VDC Resonant Frequency3500?500 Hz ToneContinuous Operating Temperature-20 - +70??/p> Storage Temperature-30 - +80??/p> RoHSYes WeightApprox 12.0g DRAWING & DIMENSION *Housing Material: Black ABS *Lead wire: UL1007 28# Electrical And Acoustical Measuring Condition a) Recommended Settingb) Recommended Test Circuit Application Packing Delivery, shipping and service Advantage 1. Our company focus on R$D, 25 patents including 2 invention patents. ? ?1)fire alarm which accordance with the UL464 requireme