1.Alarm:Pull out the pin on the top of the equipment,it alarms immediately and light flashes;Insert the pin,it stops alarm.

2.Light button:Press the light button,Led light on,press again,light flashes.press the button once more, and the light will turn off.

3.Low battery LED indicator:when the voltage is below 1V,indicator light will flash，the battery needs to be replaced in time.

Size: 88.5*32*20mm

Weight: 28.9g

Decibel: 130dB

Material：ABS

Battery:AAA*1pc（Battery included）

Qty: 240PCS

MEAS:37.5*32.5*18CM

G.W/N.W: 11.9/11.4kgs

Pull out the pin on the top of the equipment,it alarms immediately and light flashes;Insert the pin,it stops alarm.