
Resideo T104A1040 Sensor
The Resideo T104A1040 is a heavy-duty, direct-mount thermostatic radiator valve actuator engineered for precise hydronic temperature control. This high-performance non-electric thermostatic operator features an integrated internal temperature sensor, eliminating the need for complex capillary tubes or external bulbs. Designed for veteran contractors, it facilitates rapid radiator valve control on various hydronic heating systems including steam and hot water applications. The T104A1040 provides proportional control of the space temperature by modulating the flow of hot water or steam through the valve body. Whether you are performing a commercial retrofit or an OEM boiler installation, this direct mount actuator ensures stable setpoint maintenance and system efficiency. Its rugged construction is built to withstand the rigors of boiler rooms while maintaining sensitive response to ambient temperature shifts, protecting system components from overheating and reducing energy waste across the loop.
Key Benefits:- Internal Sensing Element: Self-contained design eliminates the risk of capillary kinks or external sensor damage.
- Direct Mount Interface: Threaded connection allows for fast, tool-free installation on compatible valve bodies.
- Precise Setpoint Regulation: Maintains consistent ambient temperatures in hydronic and water heating zones.
- Versatile Application: Ideal for steam and hot water systems in both residential and light commercial settings.
- Simplified Maintenance: Fewer external components mean reduced failure points and streamlined troubleshooting for technicians.
Does the Resideo T104A1040 require a remote sensor?
No, this model features a built-in internal sensor that detects ambient air temperature directly at the unit.
What systems are compatible with this thermostatic operator?
It is specifically designed for use with compatible radiator valves in hydronic heating, boiler, and water heating systems.
Can this be used for both steam and hot water?
Yes, the T104A series is engineered to provide reliable proportional control for both steam and hot water applications when paired with the correct valve body.
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: $58.81
-65%$58.81
$20.58Resideo T104A1040 Sensor
The Resideo T104A1040 is a heavy-duty, direct-mount thermostatic radiator valve actuator engineered for precise hydronic temperature control. This high-performance non-electric thermostatic operator features an integrated internal temperature sensor, eliminating the need for complex capillary tubes or external bulbs. Designed for veteran contractors, it facilitates rapid radiator valve control on various hydronic heating systems including steam and hot water applications. The T104A1040 provides proportional control of the space temperature by modulating the flow of hot water or steam through the valve body. Whether you are performing a commercial retrofit or an OEM boiler installation, this direct mount actuator ensures stable setpoint maintenance and system efficiency. Its rugged construction is built to withstand the rigors of boiler rooms while maintaining sensitive response to ambient temperature shifts, protecting system components from overheating and reducing energy waste across the loop.
Key Benefits:- Internal Sensing Element: Self-contained design eliminates the risk of capillary kinks or external sensor damage.
- Direct Mount Interface: Threaded connection allows for fast, tool-free installation on compatible valve bodies.
- Precise Setpoint Regulation: Maintains consistent ambient temperatures in hydronic and water heating zones.
- Versatile Application: Ideal for steam and hot water systems in both residential and light commercial settings.
- Simplified Maintenance: Fewer external components mean reduced failure points and streamlined troubleshooting for technicians.
Does the Resideo T104A1040 require a remote sensor?
No, this model features a built-in internal sensor that detects ambient air temperature directly at the unit.
What systems are compatible with this thermostatic operator?
It is specifically designed for use with compatible radiator valves in hydronic heating, boiler, and water heating systems.
Can this be used for both steam and hot water?
Yes, the T104A series is engineered to provide reliable proportional control for both steam and hot water applications when paired with the correct valve body.
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
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Shipping & Returns
Description
The Resideo T104A1040 is a heavy-duty, direct-mount thermostatic radiator valve actuator engineered for precise hydronic temperature control. This high-performance non-electric thermostatic operator features an integrated internal temperature sensor, eliminating the need for complex capillary tubes or external bulbs. Designed for veteran contractors, it facilitates rapid radiator valve control on various hydronic heating systems including steam and hot water applications. The T104A1040 provides proportional control of the space temperature by modulating the flow of hot water or steam through the valve body. Whether you are performing a commercial retrofit or an OEM boiler installation, this direct mount actuator ensures stable setpoint maintenance and system efficiency. Its rugged construction is built to withstand the rigors of boiler rooms while maintaining sensitive response to ambient temperature shifts, protecting system components from overheating and reducing energy waste across the loop.
Key Benefits:- Internal Sensing Element: Self-contained design eliminates the risk of capillary kinks or external sensor damage.
- Direct Mount Interface: Threaded connection allows for fast, tool-free installation on compatible valve bodies.
- Precise Setpoint Regulation: Maintains consistent ambient temperatures in hydronic and water heating zones.
- Versatile Application: Ideal for steam and hot water systems in both residential and light commercial settings.
- Simplified Maintenance: Fewer external components mean reduced failure points and streamlined troubleshooting for technicians.
Does the Resideo T104A1040 require a remote sensor?
No, this model features a built-in internal sensor that detects ambient air temperature directly at the unit.
What systems are compatible with this thermostatic operator?
It is specifically designed for use with compatible radiator valves in hydronic heating, boiler, and water heating systems.
Can this be used for both steam and hot water?
Yes, the T104A series is engineered to provide reliable proportional control for both steam and hot water applications when paired with the correct valve body.
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.












