testo 922 - 2 Channel Differential Thermometer VPP10002 It contains features such as

It contains features such as its automatic modulating true summer by-pass

due to the removable front panel

Keeping the theme of 'fuss-free installation'

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

which minimises fan energy use and sound production

testo 922 - 2 Channel Differential Thermometer VPP10002 It contains features such asemperature 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,