While many components look similar across Watts generations

Durable Construction: Engineered to withstand high-cycle thermal stress in residential and light commercial units

208-230Vac

the STE-6011-10 is a dedicated temperature sensor only

and Archerair systems

Carrier TT1-002 Test Kit Els PW 17895 While many components look similarThe Carrier TT1 002 Total Test All In One Kit is the essential diagnostic instrument for veteran service technicians performing refrigerant moisture and acid detection in the field. This comprehensive kit serves as the direct replacement for the legacy TT 1001, TT1 001, and TT3 001 models, providing a streamlined workflow for assessing system health without the need for time consuming oil sampling. By connecting directly to the suction side service