Maxitrol TS121A Temperature SensorThe Maxitrol TS121A is a Selectra Sensor designed for use with a mixing tube discharge air in the 80 130F range. Built for precise control in HVAC and combustion systems, this sensor delivers reliable feedback, fast response, and minimizes temperature fluctuations to keep conditions steady and efficient. Precise temperature sensing ensures discharge air stays within the 80130F target range for consistent performance. Easy integration with mixing tubes

Durable body and low maintenance design

Output current up to 25 mA (minimum 3 mA) at 5 VDC

This power venter runs on 115 Volt AC at 60 Hz

They are ideal for service professionals and homeowners performing routine maintenance

NB standards

this Honeywell part helps maintain accurate temperature control in commercial environments

delivering consistent cooling performance and energy efficiency

Vertical mounting

Model 28400 replaces AFS-952B for compatibility

and a compact plastic enclosure

It includes a single set point window to clearly view the configured temperature while concealing the thermometer

Flow capacity: 4250 CFH