Mold Inspection Consulting and Remediation Organization
close menu

Forgot password?

By signing into your account, you agree to MICRO’s Terms of Use and consent to its Privacy Policy.

Create an Account

Enter your email address below and click “Reset Password”. A new password will be created and emailed to you.

Return to Sign In

Testo 635-1 Compact Pro Thermohygrometer

The Testo 635-1 is for measuring air moisture, material equilibrium moisture, and pressure dew point in compressed air systems.

More info

Testo 635-1 Compact Pro Thermohygrometer
Roll over image to zoom Click image to expand
  • Testo 635-1 Compact Pro Thermohygrometer

The Testo 635-1 is for measuring air moisture, material equilibrium moisture, and pressure dew point in compressed air systems. Up to 3 temperature or humidity probes can be displayed; data transmission is radio-controlled, or wireless. Measurement data can be transmitted by infrared to the Testo printer. It is also possible, during cyclical printing, to print measurement data once every minute, for example.

The testo 635-1 immediately displays the dew point difference between ambient air and the wall surface, when analyzing moisture on walls and ceilings. There are precision probes up to -60°C tpd available to inspect pressure dewpoint in compressed air systems. The humidity sensor developed by Testo has proven itself world-wide and has outstanding features in terms of precision, long-term stability, temperature resistance and robustness.

Specifications:

Temperature - NTC

Measuring range

-40° to 302 °F / -40 to +150 °C

Accuracy

±0.4 °F (-13° to 166.8 °F) / ±0.2 °C (-25 to +74.9 °C)

±0.7 °F (-40° to -13.2 °F) / ±0.4 °C (-40 to -25.1 °C)

±0.7 °F (167° to 211.8 °F) / ±0.4 °C (+75 to +99.9 °C)

±0.5 % of mv (Remaining Range)

Resolution

0.1 °F / 0.1 °C

Temperature - Type K TC

Measuring range

-328.0° to 2498 °F / -200 to +1370 °C

Accuracy

±0.5 °F (-76° to 140 °F) / ±0.3 °C (-60 to +60 °C)

±(0.4 °F + 0.5 % of mv) (Remaining Range) / ±(0.2 °C + 0.5 % of mv) (Remaining Range)

Resolution

0.1 °F / 0.1 °C

Humidity - Capacitive

Measuring range

0 to +100 %rH

Accuracy

See probe data

Resolution

0.1 %rH

Absolute Pressure

Measuring range

0.0 hPa to +800.0 InH₂O / 0 to 2000 hPa

Accuracy

See probe data

Resolution

0.0 InH₂O / 0.1 hPa

General technical data

Weight

15 oz. / 428 g

Dimensions

9 x 3 x 2 in. / 220 x 74 x 46 mm

Operating temperature

-4° to 122 °F / -20 to +50 °C

Housing

ABS / TPE / Metal

Battery type

Alkaline, type AA

Battery life

200 h

Storage temperature

-22° to 158 °F / -30 to +70 °C