Testo 435 Data sheet

Multifunction HVAC and IAQ Meter

The newest technology for temperature, humidity, air flow and more!

testo 435

cfm

fpm

∆P

CO

2

%RH

NEW!

°F

Lux

The testo 435 is perfect for monitoring,
analyzing and diagnosing indoor air quality
problems in the office, in the warehouse, or on
the production floor, in restaurants or schools...
anywhere you need to take important IAQ
measurements.

You can easily pinpoint and troubleshoot
problems with HVAC systems and see the
results of corrections immediately.
Commissioning, validating, benchmarking, or
simpy adjusting HVAC systems are all easy with
the testo 435.

All the right parameters for HVAC and IAQ

A new IAQ probe measures CO2, relative
humidity, room air temperature and absolute
pressure for evaluating indoor air quality.
In addition the 435 can calculate absolute

The testo 435 is designed to accept a variety of
probes depending upon your applicaton. The
extraordinatory selection makes it possible to
measure everything from IAQ to velocity.

For basic HVAC checks, temperature and
humidity measuremenst have been integrated in
the new thermal probe, for measurements in
ducts. Flow speed, volume flow, air humidity and
air temperature can easily be measured in one
sequence.

The vane probe with a diameter of 2.4 in. is
suited for integrated measurements at registers.
For duct measurements, a 0.6 in. vane probe
with a broad range, 118 to 8000 fpm is
available. The Pitot tube is ideal for higher air

velocities. A 10”H20 differential pressure probe is
integrated into the testo 435-3 and testo 435-4
for this purpose.

For important IAQ measurements the unique IAQ
probe measures CO

2

, relative humidity and room
air temperature in order to evaluate room air
quality plus absolute pressure.

The degree of air velocty or draftiness in any
room can easily be determined with the
turbulence probe. Determine the true
illumination (lux) of those low-lit areas that affect
working conditions daily.

Surface temperature measurements of motors,
cooling coils, heat exchangers, etc. are easily
performed with the cross-band probe. Its unique
design reaches the actual surface temperature in
just a few seconds.

pressure, draft, lux and surface temperature.
Determining volume flow, is easy with a wide
selection of thermal probes, vane probes and
Pitot tubes.

The right probe for every application

Wireless probes offer many advantages over
traditional cable or integrated probes.
Measurements up to 65 ft. from the meter are
possible. There is no risk of damaging or
tangling wires or cables. With the teso 435 up to
three wireless probes can be read and displayed
at once for temperature and humidity
measurements. The optional wireless module
can be installed by the user at any time.

Wireless probes for temperature and humidity