​1. Core Positioning​ The Water Temperature Sensor (WTS) is a key sensing component in automotive engine cooling systems and new energy vehicle (NEV) battery thermal management systems. It real-time monitors the temperature of coolant/cooling water, converts the temperature signal into an electrical signal, and transmits it to the Engine Control Unit (ECU) or Battery Management System (BMS). It provides accurate data support for fuel injection optimization, fan on-off control, and battery thermal balance adjustment, effectively preventing engine overheating, improving fuel economy, and ensuring battery operation safety. It is applicable to various vehicle types such as fuel vehicles, hybrid vehicles, and pure electric vehicles.​ 2. Core Functions​ Accurate Temperature Collection: Monitoring range covers -40℃ to 130℃ (up to 150℃ for custom models), with a temperature measurement accuracy of ±1℃ (normal temperature range 25℃-85℃). It adopts NTC thermistor or PT1000 platinum resistor sensing elements to capture subtle changes in water temperature in real time;​ Stable Signal Output: Supports analog (0-5V/0-10V) or digital (PWM/CAN bus) signal output, with strong compatibility with ECU/BMS. The signal response time is ＜200ms, ensuring rapid adjustment of the control system;​ Fault Self-Diagnosis: When the sensor has a short circuit, open circuit, or measurement deviation exceeding the limit, it automatically sends fault codes (e.g., P0115/P0116) to facilitate maintenance personnel in quickly locating the problem;​ Environmental Adaptability: It has the ability to resist coolant corrosion, vibration (10-2000Hz), and electromagnetic interference (EMC Class 3), adapting to the high-temperature and humid complex working conditions of the engine compartment.​ 3. Core Features & Advantages​ High Reliability: The housing is made of brass/stainless steel, with an IP6K9K protection rating (waterproof and oil-proof). The service life is ≥5 years or 150,000 kilometers, meeting the long-term use requirements of the automotive industry;​ Compliance Certification: Obtained IATF16949:2016 automotive quality system certification and ISO 14001:2015 environmental certification, complying with EU RoHS, China GB/T 18384 and other environmental protection and safety standards;​ Easy Installation & Adaptation: Provides various threaded interfaces such as M12/M14/M16, adapting to the cooling circuit installation needs of different vehicle models. It can directly replace the original equipment (OE-compatible) sensor without additional modification;​ Wide Scenario Adaptation: In addition to engine coolant monitoring, it can be extended to temperature monitoring of NEV battery pack cooling systems and motor cooling circuits, meeting the thermal management needs of multiple systems.​ 4. Adaptability​ Vehicle Coverage: Compatible with mainstream passenger vehicles (Volkswagen, Toyota, Honda, BYD, Tesla, etc.), commercial vehicles (heavy-duty trucks, buses, logistics vehicles), and special vehicles (engineering vehicles, ambulances), supporting multiple power types such as fuel, hybrid, and pure electric;​ System Adaptation: Adaptable to traditional engine cooling systems, NEV battery thermal management systems (BTMS), and motor controller cooling systems. It can customize signal protocols and installation structures according to customer needs.​ 5. Service Support​ For detailed product technical parameters (such as dimension drawings, electrical characteristic curves), vehicle adaptation lists, or customized solutions, please contact the customer service team for exclusive support; we provide free installation guidance and after-sales technical training to ensure stable product operation.​