HANDLES THE HUMIDITY: In some areas humidity is a major comfort issue. Effectively measure relative humidity and temperature with the tekmar Humidity and Temperature Sensor 086. CAN BE MOUNTED FLUSH: The 086 mounts flush or nearly flush to the wall to allow the sensor to visually blend in with the surrounding wall, minimizing any visual disruption or interference with the overall decor of the room. BROAD COMPATIBILITY: This product is designed to be fully compatible with tekmar thermostats that are equipped to support auxiliary humidity sensors. Allows for seamless integration into existing climate control systems. SMALL BUT TOUGH: 1-7/16” O.D. x 1-9/16” D (36 O.D. x 40 mm D). This item is compatible with chlorinated swimming pool environments. UNDERSTAND YOUR ENVIRONMENT: Optimize the performance from your HVAC system. From sensors to thermostats, tekmar accessories expand the capabilities of your heating and cooling system. Enjoy hassle-free installation so you can move on to your next job.