testo 922 - 2 Channel Differential Thermometer VPP10002 which minimises fan energy use

which minimises fan energy use and sound production

Blueair SmokeStop filter for 200 Series - Particle filter with active carbon for use in rooms where removal of heavy gaseous pollutants

Zehnder P/N 990 430 612

Enables manual three speed control for every day use

Both gauges on the PVR are equipped with a set point indicator to monitor for pressure or vacuum losses

testo 922 - 2 Channel Differential Thermometer VPP10002 which minimises fan energy useemperature measurements and temperature difference display Wide measuring range from 50 C to 1 000 C Connecting points for two type K temperature sensors; wireless connectivity for a third temperature sensor Wide range of optional sensors Temperature measurements; measurements with up to three temperature sensors; direct display of temperature differences: the testo 922 digital temperature meter is ideal for professional use in the fields of heating,