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PTC EGT Sensor Manufacturer
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Automotive Sensor Industrial Field

PTC EGT Sensor

PTC EGT Sensor, often referred to as a PT200 or PT500 sensor, utilizes the principle that the electrical resistance of platinum changes predictably with temperature. These sensors are highly accurate and stable, making them ideal for measuring exhaust gas temperatures in automotive, industrial, and environmental applications. The sensor typically consists of a platinum wire or film encapsulated in a protective sheath, designed to withstand harsh conditions, including high temperatures and corrosive gases. By monitoring the resistance, the sensor provides precise temperature readings, which are crucial for optimizing engine performance, reducing emissions, and ensuring compliance with environmental regulations. Their reliability and durability make them a preferred choice in demanding environments.

Sensor Type PT200
Probe Numbers 1
RTD Type PT200
Operating Temp. Range -40 ℃ to +850 ℃
Measurement Accuracy <600℃：±4℃
>600℃：±7℃
Response Time at 10m/s <10s
Signal Output On the Car Voltage
Design Reliability Excellent
Certificate

Specializing in the research and development of intelligent vehicle exhaust temperature sensor, intelligent NOX sensor, NH3 sensor, H2 sensor and speed sensor, design, production, sales and integration.

ABOUT US
Sook High Tech (Jiangsu) Co., Ltd.

SOOK High Tech (Jiangsu) Co., LTD. was established in 2015, with a registered capital of 30.5 million yuan. Has won High-tech enterprise, National science and technology small and medium-sized enterprise, Software enterprise, Member of China Machinery Industry Standardization Technology Association, Council Members of Sensor and IoT Industry Association, Council Members of China Instrument Industry Association Sensor Branch and Council Members of Jiangsu Import and Export Chamber of Commerce. As a professional China OEM/ODM PTC EGT Sensor supplier and wholesale PTC EGT Sensor factory , SOOK High Tech focuses on the design, production, sales and integration of various sensors for smart cars and industrial fields, as well as cables and heaters for the industrial field. Has an annual production capacity of 600,000 sensors of various types. There are more than 2,000 items of exhaust temperature sensors, 450 items of NOx sensors, and 1,300 items of ABS sensor, which are exported to Europe and the United States.

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PTC EGT Sensor Industry knowledge

In what systems are NTCEGT sensors commonly used?
1. Automotive Exhaust Temperature Monitoring

NTCEGT sensors are installed on the engine's exhaust manifold or exhaust pipe to measure exhaust temperature in real time, helping the engine control unit (ECU) optimize fuel injection, ignition timing, and emissions control.
2. Heating, Ventilation, and Air Conditioning (HVAC) Systems

In appliances such as air conditioners and water heaters, NTC sensors are used to detect room or hot water temperature, enabling energy-saving control and comfort adjustment.
3. Industrial Process Control

NTCEGT sensors are often used in heat treatment on production lines, furnace temperature monitoring, and temperature feedback in chemical processes. Their high sensitivity and reliability ensure process stability.
4. Other Applications

NTCEGT sensors are also used in marine engines, aircraft engines, and some laboratory test equipment because of their high-temperature gas tolerance and accuracy, meeting the demands of demanding environments.
What is the difference between PTC technology and traditional thermocouples?
1. Working Principle

PTC sensors: Based on a positive temperature coefficient thermistor, their resistance increases as the temperature rises; they are a type of resistive temperature measurement. Thermocouples: Utilize the thermoelectric potential (Seebeck effect) generated by a temperature difference between two dissimilar metals to directly output a voltage signal.
2. Temperature Range and Accuracy

PTCs: Suitable for medium to low temperature ranges between -60°C and 150°C, with relatively high accuracy, especially stable in overheat protection scenarios.
Thermocouples: Offer a wide temperature measurement range (-270°C to 2300°C), but their accuracy is slightly inferior to PTCs in the low-temperature range.
3. Response Speed ​​and Linearity

PTCs: Offer fast response and are nearly linear within a certain range, making them easy to directly map to temperature values.
Thermocouples: Offer extremely fast response, but their output is a nonlinear voltage, requiring cold-junction compensation and linearization.
4. Cost and Application Scenarios

PTCs: Simple in structure and low in cost, they are commonly used in low- to medium-temperature applications such as motor overheat protection and home appliance temperature control.
Thermocouples: Costly in manufacturing, they are suitable for industrial environments with high temperatures, severe corrosion, or those requiring long-distance signal transmission.