Specification parameters:
1, detection sensitivity: Diameter 2.5mm Ball
2, power supply: 9 volt battery (6F22ND) (not inclu)
3, Power consumption: 270mW
4, operating frequency: 22KHz
5, the working current: less than 50mA
6, the working temperature: -5 -55
7, Net Weight: 409g
8, size: 410 * 85 * 45mm