The Vehicle Loop Detector is designed to detect the presence and passage of vehicles. It features a reset switch that allows manual reset during commissioning and testing, enabling the detector to re-tune the sensing loop for optimal vehicle detection. Selectable time settings allow the relay to be energized for either 1 second or 0.5 seconds. The relay can be configured to activate upon vehicle detection or when a vehicle exits the loop. Sensitivity boost sets the detection level to maximum sensitivity, helping prevent missed detections of high-bed vehicles. Switch-selectable sensitivity offers four levels for flexible configuration. Additionally, switch-selectable frequency provides four options to minimize interference between adjacent loops. A filter option introduces a delay between vehicle detection and relay activation, helping prevent false triggers from small or fast-moving objects. The permanent presence feature ensures continuous detection when a vehicle remains over the loop for extended periods. Specifications: Supply voltage: 220V AC Power: 4.5VA Output relays: 240V/5A Operating temperature: -20C to 65C Storage temperature: -40C to 85C Frequency range: 20 kHz to 170 kHz Temperature compensation: 50C/h Reaction time: 10ms Signal holding time: Unlimited Sensitivity: Higher: 0.02%, High: 0.05%, Low: 0.1%, Lower: 0.5% Loop inductance: Loop plus connection wiring: 50H to 1000H (ideal range: 100H to 300H) Loop connection wiring: Up to 200 meters, resistance less than 80, at least 20 strands per meter Relative humidity: Less than 90%, non-condensing Weight: 283g Color: Black Material: Plastic + metal Package Contents: 1 x Vehicle Loop Detector Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.