Specifications:

• Working Environment: -25℃~40℃
• Working Current: 25mA
• Use: Audio surveillance for security solutions
• Supply Voltage: DC9V-18V(recommend to use 12V, more than 500 meters recommended 15 v)
• Sound Monitor Range: 10-50 Square meters
• Sensitivity: -45dB
• Product Size: 90*90*10(mm)
• Output Impedance: 600 ~ 1000Ω non-equilibrium
• Model Number: SIZ-155
• Main Material: PVC
• Directional Property: Omnidirectional
• Brand Name: SIZHENG