Resideo 198799Z Sensor Precise Torque Delivery: High-grip serrated

Precise Torque Delivery: High-grip serrated surface prevents slippage on 3/4" round or square shafts

you maintain the original safety specifications and factory performance of the heating system without the risks associated with generic alternatives

and EG boilers

1-pole configuration that meets UL and CSA standards for safety and performance

Resideo 198799Z Sensor Precise Torque Delivery: High-grip serratedThe Resideo 198799Z Sensor is a high precision NTC thermistor designed for demanding hydronic applications, providing reliable temperature feedback for outdoor reset or supply water monitoring. Engineered for seamless integration with Resideo AQ475, AQ675, and AQ775 Aquastat controllers, this sensor is technically identical to the 198799Z U model, ensuring a drop in replacement for existing HVAC systems. Featuring a 42 inch skinned and retained lead