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Heating/cooling load
Determination of the enthalpy of the ventilation
system via parallel measurement of the humidity
and temperature of incoming/outgoing air.
Mould indication
Degree of turbulence measurement
Logging mode measurement
Comparison of the surface temperature with the
dew point and indication of the risk of mould
according to the traffic light system
(red: extremely high risk of mould, yellow:
risk of mould; green: no risk of mould).
Assessment of the comfort level based on the
determination of the turbulence and the draught
rate as per EN ISO 7730/ASHREA 55. The
draught rate indicates how many people are
dissatisfied with the draught/air movement in
the room.
Simply input the measurement period and
measuring interval, and the measuring value
curves for the required parameters are recorded.
Air velocity & IAQ measuring instrument
testo440/testo440 dP (05604401/0560 4402)
plus:
• 2 humidity probes (1 x with cable (0636 9732 or
0636 9772) and 1 x with Bluetooth (0636 9731
or 0636 9771)
Air velocity & IAQ measuring instrument
testo440/testo440 dP (0560 4401/0560 4402)
plus:
• Either: Humidity/temperature probe (0636 9732)
and infrared thermometer testo 805i (0560
1805)
• Or: Humidity/temperature probe (0636 9731 or
0560 1605) and NTC/TC probe (06020393 or
0602 1993)
Air velocity & IAQ measuring instrument
testo440/testo440 dP (0560 4401/0560 4402)
plus:
• Turbulence probe (0628 0152)
Air velocity & IAQ measuring instrument
testo440/testo440 dP (0560 4401/0560 4402)
plus:
• Any testo440 probe
testo440
Air velocity & IAQ
measuring instrument
Application consultant
Required measuring instruments
and probesMeasurement menu