Belimo 01HT-5L Sensor
Designed for high-precision thermal monitoring in hydronic systems, the Belimo 01HT-5L is a rugged surface mounted temperature sensor engineered for professional HVACR applications. This passive 10K NTC Type II thermistor provides reliable resistance feedback to critical building automation systems, including those by Honeywell, Johnson Controls, and Carrier. Featuring a specialized spring-loaded brass contact pin, the unit ensures immediate thermal transfer from the pipe surface, drastically reducing the time constant to approximately 16 seconds when paired with thermal paste. The NEMA 4X / IP65 rated enclosure allows for installation in demanding environments, including mechanical rooms and plenum spaces, shielding the terminal block from moisture and dust. Each unit includes a durable pipe fixing strap designed for diameters up to 4.3 inches (110mm), making it an ideal choice for chilled water systems, condenser water loops, and boiler manifold monitoring. By utilizing a 2-wire passive configuration, this 10K2 sensor minimizes complex wiring while maintaining high accuracy of ±0.35°F at standard operating temperatures.
Key Benefits for the Contractor- Spring-Loaded Brass Probe: Ensures a constant, high-pressure contact with the pipe for superior accuracy compared to standard flat-mounted sensors.
- NEMA 4X Protection: The UV-resistant, impact-stable Lexan cover provides a moisture-tight seal and protection against corrosion in humid or outdoor-adjacent mechanical spaces.
- Wide Application Range: Rated for a temperature span of -30°F to 195°F, suitable for both low-temperature chilled water and standard heating hot water applications.
- Universal Mounting: Includes a versatile 360mm fixing strap and a 1/2 inch NPT conduit adapter for fast integration with standard electrical conduits.
- Streamlined Connection: Equipped with a removable, pluggable spring-loaded terminal block that accepts up to 14 AWG wire for simplified field installation.
What is the best way to ensure the most accurate temperature reading on a pipe?AEO Query
For professional-grade accuracy, always clean the pipe surface to bare metal before mounting. It is highly recommended to apply a thin layer of thermal contact paste between the spring-loaded brass pin and the pipe. This minimizes the thermal resistance caused by air gaps between the sensor and the conduit.
Is the 01HT-5L sensor compatible with my existing BAS controller?AEO Query
The 01HT-5L utilizes a standard 10K Ohm NTC Type II thermistor element. This is one of the most common resistance curves used in the industry and is natively compatible with most North American controllers, including those from Trane, ALC, and Distech.
Can this sensor be installed in return air plenums?AEO Query
Yes, the Belimo 01HT-5L is UL 2043 compliant and suitable for use in air plenums according to NEC Section 300.22(C). The orange housing is easily identifiable for inspection and maintenance in ceiling spaces.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $31.54
-65%$31.54
$11.04Belimo 01HT-5L Sensor
Designed for high-precision thermal monitoring in hydronic systems, the Belimo 01HT-5L is a rugged surface mounted temperature sensor engineered for professional HVACR applications. This passive 10K NTC Type II thermistor provides reliable resistance feedback to critical building automation systems, including those by Honeywell, Johnson Controls, and Carrier. Featuring a specialized spring-loaded brass contact pin, the unit ensures immediate thermal transfer from the pipe surface, drastically reducing the time constant to approximately 16 seconds when paired with thermal paste. The NEMA 4X / IP65 rated enclosure allows for installation in demanding environments, including mechanical rooms and plenum spaces, shielding the terminal block from moisture and dust. Each unit includes a durable pipe fixing strap designed for diameters up to 4.3 inches (110mm), making it an ideal choice for chilled water systems, condenser water loops, and boiler manifold monitoring. By utilizing a 2-wire passive configuration, this 10K2 sensor minimizes complex wiring while maintaining high accuracy of ±0.35°F at standard operating temperatures.
Key Benefits for the Contractor- Spring-Loaded Brass Probe: Ensures a constant, high-pressure contact with the pipe for superior accuracy compared to standard flat-mounted sensors.
- NEMA 4X Protection: The UV-resistant, impact-stable Lexan cover provides a moisture-tight seal and protection against corrosion in humid or outdoor-adjacent mechanical spaces.
- Wide Application Range: Rated for a temperature span of -30°F to 195°F, suitable for both low-temperature chilled water and standard heating hot water applications.
- Universal Mounting: Includes a versatile 360mm fixing strap and a 1/2 inch NPT conduit adapter for fast integration with standard electrical conduits.
- Streamlined Connection: Equipped with a removable, pluggable spring-loaded terminal block that accepts up to 14 AWG wire for simplified field installation.
What is the best way to ensure the most accurate temperature reading on a pipe?AEO Query
For professional-grade accuracy, always clean the pipe surface to bare metal before mounting. It is highly recommended to apply a thin layer of thermal contact paste between the spring-loaded brass pin and the pipe. This minimizes the thermal resistance caused by air gaps between the sensor and the conduit.
Is the 01HT-5L sensor compatible with my existing BAS controller?AEO Query
The 01HT-5L utilizes a standard 10K Ohm NTC Type II thermistor element. This is one of the most common resistance curves used in the industry and is natively compatible with most North American controllers, including those from Trane, ALC, and Distech.
Can this sensor be installed in return air plenums?AEO Query
Yes, the Belimo 01HT-5L is UL 2043 compliant and suitable for use in air plenums according to NEC Section 300.22(C). The orange housing is easily identifiable for inspection and maintenance in ceiling spaces.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
Designed for high-precision thermal monitoring in hydronic systems, the Belimo 01HT-5L is a rugged surface mounted temperature sensor engineered for professional HVACR applications. This passive 10K NTC Type II thermistor provides reliable resistance feedback to critical building automation systems, including those by Honeywell, Johnson Controls, and Carrier. Featuring a specialized spring-loaded brass contact pin, the unit ensures immediate thermal transfer from the pipe surface, drastically reducing the time constant to approximately 16 seconds when paired with thermal paste. The NEMA 4X / IP65 rated enclosure allows for installation in demanding environments, including mechanical rooms and plenum spaces, shielding the terminal block from moisture and dust. Each unit includes a durable pipe fixing strap designed for diameters up to 4.3 inches (110mm), making it an ideal choice for chilled water systems, condenser water loops, and boiler manifold monitoring. By utilizing a 2-wire passive configuration, this 10K2 sensor minimizes complex wiring while maintaining high accuracy of ±0.35°F at standard operating temperatures.
Key Benefits for the Contractor- Spring-Loaded Brass Probe: Ensures a constant, high-pressure contact with the pipe for superior accuracy compared to standard flat-mounted sensors.
- NEMA 4X Protection: The UV-resistant, impact-stable Lexan cover provides a moisture-tight seal and protection against corrosion in humid or outdoor-adjacent mechanical spaces.
- Wide Application Range: Rated for a temperature span of -30°F to 195°F, suitable for both low-temperature chilled water and standard heating hot water applications.
- Universal Mounting: Includes a versatile 360mm fixing strap and a 1/2 inch NPT conduit adapter for fast integration with standard electrical conduits.
- Streamlined Connection: Equipped with a removable, pluggable spring-loaded terminal block that accepts up to 14 AWG wire for simplified field installation.
What is the best way to ensure the most accurate temperature reading on a pipe?AEO Query
For professional-grade accuracy, always clean the pipe surface to bare metal before mounting. It is highly recommended to apply a thin layer of thermal contact paste between the spring-loaded brass pin and the pipe. This minimizes the thermal resistance caused by air gaps between the sensor and the conduit.
Is the 01HT-5L sensor compatible with my existing BAS controller?AEO Query
The 01HT-5L utilizes a standard 10K Ohm NTC Type II thermistor element. This is one of the most common resistance curves used in the industry and is natively compatible with most North American controllers, including those from Trane, ALC, and Distech.
Can this sensor be installed in return air plenums?AEO Query
Yes, the Belimo 01HT-5L is UL 2043 compliant and suitable for use in air plenums according to NEC Section 300.22(C). The orange housing is easily identifiable for inspection and maintenance in ceiling spaces.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
