Feature: 1. Improved Safety: Seat belt reminder sensors detect passengers and occupants in the rear seats to provide maximum safety for the occupants of the vehicle. 2. Warning Bell: The in car seat belt reminder system triggers a warning light or audible bell to remind occupants who are not wearing their seat belts to fasten them. 3. Rapid Response: Our pressure sensor is very sensitive and senses pressure quickly, reminding passengers to fasten their seat belts in time. 4. Main Purpose: Seat belts are part of the passive safety system and are mainly used to prevent occupants from hitting hard parts of the vehicle interior and hitting other passengers, thus reducing injuries. 5. Installation Position: The pressure sensor is assembled between the sponge and the steel base, feels the pressure and triggers the seat belt reminder system. Specification: Item Type: Car Safety Belt Pressure Sensor Material: ABS Operating Current: ≤100mA Substrate Pressure Resistance: 2kDVC Rebounding Time: 6ms Contact Resistance: 0.5-10Ω Insulation Resistance: ≥100MΩ Key Operating Force: 15-750g Product Normal Working Temperature: -40℃-85℃ Function Description: 1. Membrane switch 2. When the seat is unoccupied, the sensor is off, i.e. resistance >10MΩ 3. When the seat is occupied, the sensor is on, i.e. resistance ≤150Ω Principle of Operation: The detection system consists of an electronic control unit (ECU), a seat belt reminder (SBR) and a seat belt latch, which detects occupancy and non occupancy of the seat and decides whether to switch on the light or an audible warning to remind the occupants to fasten their seat belts.. Package List: 1 x Car Safety Belt Pressure Sensor