Features:

Working Voltage: DC3.5-6.5v, ( 4 AA Size alkaline battery) TM card & mechanical key.

Battery Life: Above 18000times in normal99

Quiescent Current <20μA Dynamic Current <1500mA Temperature Range: -40-+85°C Work humidity: 15-95 %RH Metal : Zinc Alloy Weight : 2.5 kg ≤ weight ≤ 3 Kg Card Distance: 5 mm Read card time: <0.2s Card Type: TM Card Detective method: Card close to Microwave Measurement, good reliability.