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This dual-function sensor series monitors both the temperature and level of the engine coolant. The water temperature sensor transmits data to the dashboard and ECU, triggering an alarm when overheating occurs; the water level sensor detects insufficient coolant and triggers a low liquid level alarm. It is the core safety component of the engine cooling system, compatible with passenger cars, commercial vehicles and multiple brands.
| Item | Specification/Details |
| Warranty Period | 12 months or 100,000 km (whichever comes first) |
| Payment Terms | T/T, PayPal, Western Union |
| Port of Loading | Ningbo Port or Shanghai Port |
| Lead Time | 7-15 working days after deposit |
| Packing | 50 pcs per carton with foam |
| Shipping Method | By sea / air / express (DHL/FedEx/UPS) |
| Sample Policy | Free samples, buyer pays freight |
| After-Sales Support | Technical support & replacement for defective items |
| MOQ | 30 |
The Water Temperature Sensor & Water Level Alarm Series is designed to provide accurate monitoring and reliable protection for automotive, industrial, and mechanical systems. These components play an essential role in maintaining safe operating conditions by monitoring coolant temperature and liquid levels in real time. High-quality sensors and alarm devices help improve system efficiency, prevent equipment damage, and ensure operational safety.
A water temperature sensor is an electronic device used to measure the temperature of coolant or water within a system. It converts temperature changes into electrical signals and sends the data to the ECU, dashboard, or monitoring system.
Main Functions of Water Temperature Sensors
Monitor engine coolant temperature
Prevent overheating and engine damage
Support ECU fuel and ignition adjustments
Provide temperature readings to dashboards
Improve engine efficiency and performance
Water temperature sensors are widely used in vehicles, industrial equipment, and cooling systems.
A water level alarm is a monitoring device designed to detect liquid level conditions in tanks, reservoirs, cooling systems, or containers. When the water level becomes too high or too low, the system activates an alarm signal to warn operators.
Main Functions of Water Level Alarms
Monitor water or coolant levels in real time
Prevent dry running or overflow conditions
Protect engines and equipment from damage
Trigger warning alarms or indicator lights
Improve operational safety and maintenance efficiency
High Detection Accuracy
Provides precise temperature and liquid level monitoring for stable system operation.
Fast Response Performance
Quickly detects changes in temperature or water level conditions.
Durable Construction
Designed to resist vibration, heat, moisture, corrosion, and harsh operating environments.
Stable Signal Output
Ensures reliable communication with ECUs, dashboards, and monitoring systems.
OEM Standard Compatibility
Manufactured according to OEM specifications for easy installation and replacement.
These products are widely used in:
Automotive Systems
Passenger vehicles
Heavy-duty trucks
Commercial vehicles
Agricultural machinery
Electric and hybrid vehicle cooling systems
Industrial Equipment
Cooling systems
Boilers and heating systems
Water tanks and reservoirs
Compressors and generators
Marine & Agricultural Applications
Marine engines
Irrigation systems
Agricultural machinery cooling systems
Water Temperature Sensor Failure Signs
Engine overheating
Incorrect temperature gauge readings
Cooling fan malfunction
Poor fuel efficiency
Engine warning lights
Water Level Alarm Failure Signs
False alarm activation
No warning during low water levels
Inconsistent liquid level readings
Equipment protection failure
Replacing faulty components helps maintain safe and efficient system operation.
Improved Equipment Protection
Prevents overheating, overflow, and low-liquid damage.
Reliable Performance
Provides stable operation under demanding working conditions.
Long Service Life
Manufactured with high-quality materials for durability and corrosion resistance.
Easy Installation
OEM-standard connectors and mounting designs simplify maintenance and replacement.
Modern sensor and alarm systems are evolving toward:
Intelligent digital monitoring
CAN bus and smart ECU integration
Wireless monitoring technology
Enhanced environmental resistance
Compact and lightweight designs
Real-time diagnostic systems
These innovations improve system efficiency, automation, and operational safety.
The Water Temperature Sensor & Water Level Alarm Series is essential for protecting automotive, industrial, and mechanical systems from overheating and liquid-level related failures. High-quality sensors and alarm devices provide accurate monitoring, stable signal transmission, and reliable protection under various operating conditions. Whether for OEM manufacturing or aftermarket replacement, choosing dependable monitoring components ensures long-term safety, efficiency, and equipment reliability.
What does a water temperature sensor do?
It measures coolant or water temperature and sends data to the ECU or monitoring system.
What is the purpose of a water level alarm?
It detects abnormal water levels and activates warning signals to prevent equipment damage.
What happens if a water temperature sensor fails?
It may cause incorrect temperature readings, overheating, or engine performance issues.
Can a faulty water level alarm affect equipment safety?
Yes. Failure to detect low or high water levels may lead to system damage or operational risks.
Are these sensors suitable for industrial applications?
Yes. They are widely used in automotive, industrial, agricultural, and marine systems.
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