Model Number: SB301s-6 Brand Name: CISBO Key Specifications/Special Features: 1.Measuring the distance by radar2.Alarm by three step Bi-Bi sound3.2-8 sensors are available4.Full-weather design, un-affected by wind, ice, snow & rain5.All kinds of sensor colors and styles are available6.With waterproof connectors,available for all kinds of heavy weather.7.Sensor cable length:2.5m~8m8.Sensor cable material:Pure copper9.Function:CPU design,reliable performance10.Sensor type:mini style,easy installation11.Working temperature:-20~+6512.Pure copper sensor cable materials.