MS-200RF Wireless Magnetic Contact
Power: AAAX2PCS BatterySteady Current: ≤ 25 uAAlarm Current: ≤ 15 mADistance: 100m(in Open Place)Frequency: 315/433 MHZ Material: ABSSize: Switch Part: 76 x 37 x 16.3 mmMagnet Part:50 x 12 x 13 mm