1. Pull out the plug, the alarm will emit a 125dB alarm sound and the red LED light on the surface will flash. Push back to stop. The loud alarm and bright LED lights can attract the attention of others and seek help in an emergency.
2. The side switch can control the LED light. Press it once, and the LED light will be on; press it again, and the light will flash; press it again, and the light will be off. It can be used as a warning signal light or a contact signal light. A
Note: Battery LR44*3pcs
Package: alarm * 1 (color optional)
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