Description:1. High sensitivity, high reliability, good stability.2. Dust, moisture, high temperature, impact resistance, vibration & other harsh environmental conditions. Feature: Brand Quelima Color Black, White, Silver Material Ceramic + Metal iron Type Sound Parking Sensor Interface Square Port 2-pin Universal Plug Power Supply Voltage 12 V Applicable Models General Power 5WAlarm Prompt Yes Installation Diameter 22mm Aperture Line Length 2.5 Meters Detection Range About 120 Degrees 0.3-2.5 Meters Sensitivity 160mv Impedance 500 (Ohms) Working Temperature-30~+80 C Weight 45g Size 2*2*2cm Package Included:1 X 22mm Aperture Probe (Line Length 2.5 Meters)