Features Function: A professional vehicle loop detector, mainly used to detect the presence and passage of vehicles, with a permanent presence function to ensure that the detection of vehicles is maintained when the vehicle is parked on the loop for a long time. Safety: A reset switch can manually reset the detector during commissioning and testing, so the detector readjusts the sensing loop and is ready for vehicle detection, and a pulse relay can be energized when a vehicle is detected or when the vehicle leaves the loop. Flexible: The pulse time can be selected to set the duration of the pulse relay energization for 1 second or 0.5 seconds, there are 4 kinds of sensitivity and frequency on the switch can be selected, freely configurable, and can be used to prevent crosstalk between adjacent loops. Filter Options: This option is used to provide a delay between vehicle detection and output relay switching. This vehicle detection relay is typically used to prevent false detection of small or fast-moving objects. Accuracy: Highly accurate, the vehicle loop detector responds quickly, this sensitivity boost function sets the undetected level to the maximum sensitivity to prevent detection loss of high bed vehicles. Specifications: Supply voltage 220VAC Power 4.5VA Output relays 240V/5A Operating temperature -20~65°C Storage temperature -40~85°C Frequency range 20 kHz to 170 kHz Temperature compensation 50°C/ h Reaction time 10ms Signal holding time Unlimited/limited Sensitivity Higher:0.02% high:0.05% low:0.1% lower:0.5% Loop inductance Total loop plus connection wiring: 50μH to 1000μH. Ideal is 100μH to 300μH Loop connection wiring 200 meters long. The total resistance is less than 80hm, twisted at least 20 times per meter Relative humidity <90%No condensation Weight 283g Package included: 1 x Vehicle Loop Detector 1 x manual Package List