Specifications:
1) Power: 9V Standard or Rechargeable Battery(270mW)
2) Operating Frequency: 22KHz
3) Working current: <50mA
4) Operating Voltage: 7-9V
4) Working voltage: 12V DC or 9V AC
5) Temperature: -5-55
Specifications: 1) Power: 9V Standard or Rechargeable Battery(270mW) 2) Operating Frequency: 22KH