Specification: Battery: 6 x 1.5V AA alkaline batteries Operating current: Standby - 40mA (LCD with BG color 80mA), Max - 110mA (LCD with BG color 150 mA) Operating voltage range: 72 - 9.6V Operating frequency: 7.5KHZ +/- 1KHZ Sensitivety: Min. 20cm (Test Coin: US cent 50) Audio frequency: 200Hz (Iron) 700Hz (Gold) 1200Hz (Silver) Tempreture range: -20 centigrade - 60 centigrade Size: 540mm(L) x 345mm(W) x 150mm(H) Weight: 1.1 kg
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