Artec refrigerator left open alarm 4521718932248

Perfect for practicing soldering! ●The sensor detects light and the LED lights up. ●The buzzer activates about 20 seconds after the LED lights up. ●Used as an energy saving measure. ●Number of soldered parts: 13 - 96 x 6 0 x 24mm board x 1, electronic component mount x 1, buzzer x 1, case x 1, EVA insulation sheet x 1, solder x 1, coin battery (CR2032) x 1 38g board, PP