Review on 10PCS tatoko DC 3-24V 30mA 80dB Electronic Buzzer: Continuous Beep Alarm, Mini Small by David Lambert
Great product at a low price.
This product is as advertised. Mini alarm that can use different voltages and consumes around 30mA. Alarm every bit 80db. I use it with a 9 volt battery and a pressure switch as an alarm indicating that my air compressor's air pressure switch failed to turn back on at the correct pressure. I will also hook up a couple of these to my hatches on my boat to alert me if someone opens the hatch, moves the outboard or dinghy while we sleep.
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