1. High sensitivity.

2. Easy and simple to operate.

3. Detection distance keeps steady when 9V battery is used up to 7V.

4. Save power. Alkaline battery can work over 45 hours.

5. Sound alarms when turn on or turn off device.

Model: MD-1005.

Power: 9V(6F22).

Work Frequency: 22KHz.

Work Electricity: <50mA.

Work Voltage: 7V-9V.

Sensibility: 30mm at hat pin; 50mm at US 25 cent.

1 x MD1005 unit.

1 x User Manual.