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Detection sensitivity: detection of one yuan coin, the detection distance ≥9CM
Detection mode: sound and light alarm.
Power supply: 9 volt battery box (6F22ND battery), external charger function (charger optional)
Static current: less than 26mA
Current job: sound and light less than 120mA
Operating temperature: -5 ℃ to 45 ℃
Dimensions: 41.5 * 9 * 4.5 cm
Weight: 352g
Packing size: 49 * 26 * 44cm (25 / box, 12.5 KG / box)