Yes it does include one gasket as shown in the picture

Thermal Resilience: Industrial-grade 32/130 degree temperature range ensures performance in non-conditioned mechanical rooms and enclosures

Universal Multi-Mount Design: Brackets on all four sides allow for versatile mounting in almost any appliance housing

meaning it works with existing Johnson Controls or third-party controllers calibrated for that specific RTD type

Standard sockets or pliers often fail to engage the specific geometry of the valve cage correctly

Johnson Controls TE-68NT-1N00S Temperature Sensor Els PW 17895 Yes it does include oneThe Johnson Controls TE 68NT 1N00S is a high precision 1K Ohm Nickel Temperature Sensor designed for critical room wall mount applications within a Building Automation System (BAS) or DDC framework. As a direct replacement for TE 67NT 2B00 and TE 6100 8, this third generation Metastat sensor provides high accuracy environmental monitoring with a reference resistance of 1,000 ohms at 70? F. This unit features a built in warmer cooler setpoint