GK-15A CCTV HD Low Noise Microphones High Sensitive Pre-amp Audio Pickup Device Tiny Spy Microphone for DVR Security Camera Surveillance System Sound Voice Monitoring

Description

Specification Input Type of Microphone：Electret Nominal Voltage：DC9-12V Operating Current：25mA wire connection：Audio female RCA jack Female DC power plug Features Range：262ft (80m) Tranmission Distance：3281ft (1000m) Output Signal ：2.5Vpp / -25db Response Frequency：100-5500HZ Output Impedance ：600Ω Sensitivity：-60dB Signal to Noise Ration (SNR)：60dB (1m 40dB sound source) 50dB (10m 40dB sound source) Direction Omnidirectional Max SPL (sound pressure level)：80dB SPL (1KHz, THD 1%) Dynamic Range：35dB (1KHz at max dB SPL) Physical Appearance Material：Plastic and PVC Product Dimensions：D:87.65mm Product Weight：29.9g Additional Information Standards/Certifications ：CE/FCC/RoHS Operating Temperature：-4°F-104°F (-20°C-40°C) Storage Temperature：-22°F-122°F (-30°C-50°C) Relative Humidity ：95% or less (non-condensing) Package Dimensions：89*89*54mm Package Weight：51.5g