901L Adjustable sensitivity sound monitor The selection of professional operational amplifier for signal amplification, sounds pure. Operating-Voltage: 6-12V DC Frequency response: 100_5500Hz; The adjustable sensitivity. Bug range: 5~80M square ...

301A Adjustable Sensitivity High-fidelity pure sounds sound monitor Using high-fidelity or low noise processing chips, voice clear, low noise, appearance fashion, which applies to a variety of situations. Operating-Voltage: 6-12VDC Frequency response: 100_5500Hz; The adjustable...

601 Micrip design small noise, high-fidellty Frequency response: 100_5500Hz, output signal. Amplitude: 2.5Vpp/-25dB; The transmission distance: Over 1000m. Bug range: 5~60 square meters.  ...

103 High-fidelity pure sounds sound monitor Pure sounds, built-in automatic gain control(Agc)Circuit carefully desisned. Operating-Voltage: 6-12V DC Frequency response: 100_5500Hz, output signal. Bug range: 5~80M square Size: ( L)39× (W)31× (H)17mm ...

03 High-sensitivity, subtle design sound monitor Covert design, the duilt-in microprocessor, excellent anti-noise function. Operating-Voltage: 6-12VDC Frequency response: 100_5500Hz, output signal. Bug range: 5~60 square ...

GSM Car Alarm ...

15E Mini Adjustable High-fidelity pure sounds sound monitor The dynamic, Wide-band, the beautiful sound Operating-Voltage: 6-12V DC Frequency response: 100_5500Hz; Bug range: 10~100 square ...

wireless vibration sensor ...

Wireless rolling (shutter) detector ...

Wireless signal repeater ...