Early warning for air-filters failing

Sontay, air filter sensor

Sontay has launched a pressure-sensor as an alternative to air differential-pressure switches for monitoring HVAC filters that only indicate when the filter is blocked. Rather than waiting for this stage, the PA-500 gives an early indication of the state of an air filter so action can be taken before a breakdown occurs. These sensors are compact and supplied pre-wired so they are quick and easy to install.

These sensors have user-selectable current or voltage setting and multi-range pressure sensing that is selected using a DIP switch. They are little more than half the price of more sophisticated and accurate sensors and come with a 3-year warranty.

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