• Sintered cap ideal for dusty or soiled environments
• High accuracy
• Plug-in convenience

This solid-state transmitter plugs into its wall-mounted receptacle for on-site, continuous monitoring of relative humidity and temperature in critical or controlled environments. The HI 8666 has an excellent accuracy of ±2% RH and ±1% ºC. Each 4-20 mA analog signal can be sent to remote panel meters, controllers, or data acquisition systems. The signals are to be powered by separate external voltage sources. Equipped with a removable sintered cap, the HI 8666 sensor is well protected for the long run against the effects of dust or unclean environments. With the filter removed, the response time is greatly reduced. However, in some applications, such as food and industry, reliability rather than response time is the primary objective. With the filter installed, the life of the sensor and the instrument is prolonged and less maintenance is required.

HI 8666 is supplied complete with sensor protective cap, mounting brackets and instructions.