When an NTC sensor is installed directly on a pipe, evaporator, condenser, or other metal surface, the sensor structure matters just as much as the electrical specifications.
A stainless steel NTC probe is often a practical choice for these applications because it can provide good thermal contact, mechanical protection, and long-term stability.
Where are stainless steel NTC probes commonly used?
❄ Evaporators
For monitoring refrigerant-side or surface temperature.
???? Condensers
For temperature monitoring and system protection.
???? Refrigeration Pipes
For reliable surface or pipe temperature measurement.
???? Heat Pump Systems
For monitoring key thermal points during heating and cooling cycles.
What should engineers consider?
1. Probe dimensions
The probe diameter and length should match the installation space and thermal contact area.
2. Resistance & B Value
The sensor's R-T curve must be compatible with the controller.
3. Temperature range
Select materials and encapsulation according to the actual operating temperature.
4. Installation method
Threaded, clamp-on, embedded, or customized mounting structures may be required for different applications.
5. Response time
Probe material, dimensions, internal construction, and thermal contact all influence response speed.
There is no single 'best' NTC probe for every HVAC application.
The right design depends on where the sensor is installed, what temperature it needs to measure, and how the system is controlled.
At Xinshiheng, we provide customized NTC temperature sensor solutions for:
Air Conditioners
Heat Pumps
Refrigeration Systems
Ventilation Equipment
From resistance and B Value selection to probe dimensions, cable specifications, and housing design, Xinshiheng can develop the sensor around your application. Please contact us for customized solutions.
