Laars Heating Systems RE2319800 Sensor
The Laars RE2319800 Sensor is a precision-engineered duplex stack temperature sensor specifically designed for high-performance monitoring in commercial and residential hydronic systems. Featuring a rugged 1/4 BSP (British Standard Pipe) threaded connection, this dual-element sensor provides the redundant, high-accuracy thermal feedback required by modern modulating condensing boilers to maintain strict control over energy efficiency and thermal safety. Its 5-1/4 inch length ensures deep insertion into the flue gas stream or heat exchanger header for real-time response to temperature fluctuations.
This genuine Laars replacement part is essential for resolving common "limit control input" errors or erratic modulation cycles in compatible units. As an OEM component, the RE2319800 integrates seamlessly with the internal boiler control boards, ensuring that the resistance-to-temperature curve matches the factory calibration exactly. For service technicians, the duplex thermistor design offers an additional layer of diagnostic reliability, allowing the system to cross-reference data and detect sensor drift before a critical lockout occurs. Using a high-quality NTC thermistor sensor like this is a standard best practice to prevent short-cycling and ensure long-term hydronic system health.
Key Benefits for Technicians:
- Broad Compatibility: Engineered for use with Laars NeoTherm (NTH-285 through NTH-850) and Pennant series boilers.
- Duplex Safety: Dual-element sensor allows for redundant temperature monitoring, a critical requirement for safety chain continuity.
- Precision Threading: Standard 1/4 BSP duplex fitting ensures a leak-proof seal without the need for additional adapters.
- OEM Reliability: Guaranteed to match the specific 11,900-ohm resistance @ 70°F curve required by the factory control logic.
Common Questions:
Which boiler models use the RE2319800 sensor?
This sensor is a primary component for the Laars NeoTherm and Pennant series. It is widely used in the NTH-285, NTH-399, NTH-500, NTH-600, NTH-750, and NTH-850 models to monitor stack or outlet temperatures.
What are the signs that this sensor needs replacement?
Technicians should look for specific error codes on the user interface, such as an "Outlet High Limit" lockout or "Sensors Out of Sync" warnings. Physical evidence of corrosion or moisture on the 1/4 BSP threads also indicates it is time for a swap.
Does this sensor come with the mounting well?
The RE2319800 is generally the sensor probe itself. It is designed to slide into an existing dry well or screw directly into the 1/4-inch port depending on the specific manifold configuration of the boiler.
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: $95.97
-65%$95.97
$33.59Laars Heating Systems RE2319800 Sensor
The Laars RE2319800 Sensor is a precision-engineered duplex stack temperature sensor specifically designed for high-performance monitoring in commercial and residential hydronic systems. Featuring a rugged 1/4 BSP (British Standard Pipe) threaded connection, this dual-element sensor provides the redundant, high-accuracy thermal feedback required by modern modulating condensing boilers to maintain strict control over energy efficiency and thermal safety. Its 5-1/4 inch length ensures deep insertion into the flue gas stream or heat exchanger header for real-time response to temperature fluctuations.
This genuine Laars replacement part is essential for resolving common "limit control input" errors or erratic modulation cycles in compatible units. As an OEM component, the RE2319800 integrates seamlessly with the internal boiler control boards, ensuring that the resistance-to-temperature curve matches the factory calibration exactly. For service technicians, the duplex thermistor design offers an additional layer of diagnostic reliability, allowing the system to cross-reference data and detect sensor drift before a critical lockout occurs. Using a high-quality NTC thermistor sensor like this is a standard best practice to prevent short-cycling and ensure long-term hydronic system health.
Key Benefits for Technicians:
- Broad Compatibility: Engineered for use with Laars NeoTherm (NTH-285 through NTH-850) and Pennant series boilers.
- Duplex Safety: Dual-element sensor allows for redundant temperature monitoring, a critical requirement for safety chain continuity.
- Precision Threading: Standard 1/4 BSP duplex fitting ensures a leak-proof seal without the need for additional adapters.
- OEM Reliability: Guaranteed to match the specific 11,900-ohm resistance @ 70°F curve required by the factory control logic.
Common Questions:
Which boiler models use the RE2319800 sensor?
This sensor is a primary component for the Laars NeoTherm and Pennant series. It is widely used in the NTH-285, NTH-399, NTH-500, NTH-600, NTH-750, and NTH-850 models to monitor stack or outlet temperatures.
What are the signs that this sensor needs replacement?
Technicians should look for specific error codes on the user interface, such as an "Outlet High Limit" lockout or "Sensors Out of Sync" warnings. Physical evidence of corrosion or moisture on the 1/4 BSP threads also indicates it is time for a swap.
Does this sensor come with the mounting well?
The RE2319800 is generally the sensor probe itself. It is designed to slide into an existing dry well or screw directly into the 1/4-inch port depending on the specific manifold configuration of the boiler.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Laars RE2319800 Sensor is a precision-engineered duplex stack temperature sensor specifically designed for high-performance monitoring in commercial and residential hydronic systems. Featuring a rugged 1/4 BSP (British Standard Pipe) threaded connection, this dual-element sensor provides the redundant, high-accuracy thermal feedback required by modern modulating condensing boilers to maintain strict control over energy efficiency and thermal safety. Its 5-1/4 inch length ensures deep insertion into the flue gas stream or heat exchanger header for real-time response to temperature fluctuations.
This genuine Laars replacement part is essential for resolving common "limit control input" errors or erratic modulation cycles in compatible units. As an OEM component, the RE2319800 integrates seamlessly with the internal boiler control boards, ensuring that the resistance-to-temperature curve matches the factory calibration exactly. For service technicians, the duplex thermistor design offers an additional layer of diagnostic reliability, allowing the system to cross-reference data and detect sensor drift before a critical lockout occurs. Using a high-quality NTC thermistor sensor like this is a standard best practice to prevent short-cycling and ensure long-term hydronic system health.
Key Benefits for Technicians:
- Broad Compatibility: Engineered for use with Laars NeoTherm (NTH-285 through NTH-850) and Pennant series boilers.
- Duplex Safety: Dual-element sensor allows for redundant temperature monitoring, a critical requirement for safety chain continuity.
- Precision Threading: Standard 1/4 BSP duplex fitting ensures a leak-proof seal without the need for additional adapters.
- OEM Reliability: Guaranteed to match the specific 11,900-ohm resistance @ 70°F curve required by the factory control logic.
Common Questions:
Which boiler models use the RE2319800 sensor?
This sensor is a primary component for the Laars NeoTherm and Pennant series. It is widely used in the NTH-285, NTH-399, NTH-500, NTH-600, NTH-750, and NTH-850 models to monitor stack or outlet temperatures.
What are the signs that this sensor needs replacement?
Technicians should look for specific error codes on the user interface, such as an "Outlet High Limit" lockout or "Sensors Out of Sync" warnings. Physical evidence of corrosion or moisture on the 1/4 BSP threads also indicates it is time for a swap.
Does this sensor come with the mounting well?
The RE2319800 is generally the sensor probe itself. It is designed to slide into an existing dry well or screw directly into the 1/4-inch port depending on the specific manifold configuration of the boiler.
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.
