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    testo 635-1 - Humidity measuring instrument

    0560 6351
  1. Probes available as an option mean you can measure air humidity, temperature, absolute pressure, and dew point in compressed air
  2. Measures air moisture, material equilibrium moisture, pressure dew point
  3. Calculates dew point and dew point distance
  4. Cyclical printing of readings once a minute, for example
    5. The testo 635-1 temperature and humidity measuring instrument enables you to measure the temperature, air humidity, and dew point – in compressed air as well. State of the art technology and a large selection of probes, which are available optionally, allow for a wide variety of measuring possibilities.
    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.

    testo 635-1 temperature and humidity measuring instrument, including calibration protocol and batteries
    Caution: The instrument can only be commissioned with a probe. These are available separately.

    Temperature - NTC

    Measuring range
    -40° to 302 °F / -40 to +150 °C
    Accuracy
    ±0.5 % of mv (Remaining Range)
    ±0.7 °F (167° to 211.8 °F) / ±0.4 °C (+75 to +99.9 °C)
    ±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)
    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

    Air Probes

  5. Air Probes
    Robuster Luftfühler, TE Typ K
      Rugged air probe, T/C Type K  
      :
      0602 1793

      • Dewpoint Pressure Probe

    • Dewpoint Pressure Probe
      Drucktaupunktfühler zur Messung in Druckluftsystemen
      Pressure dewpoint probe for measurements in compressed air systems
        :
        0636 9835
      • Dewpoint Pressure Probe
        Precision pressure dew point probe
        Precision pressure dewpoint probe for measurements in compressed air systems, including certificate with test point -40°F tpd
          :
          0636 9836

          • Humidity probes

        • Humidity probes
          Dünner Feuchtefühler mit abgesetzter Elektronik
          Thin humidity probe with built-in electronics, incl. 4 attachable Teflon protection caps for material moisture equilibrium measurement
            :
            0636 2135
          • Humidity probes
            Robust humidity probe for meas. up to +257 °F, short-term up to +284 °F, Ø 0.47 ", e.g. exhaust ducts, and for meas. of material equilibrium moisture, e.g. bulk goods
              :
              0636 2161
            • Humidity probes
              Streufeldsonde
              Scatter field probe for fast and damage-free material moisture measurement, with probe cable 1.2 m
                :
                0636 6160
              • Humidity probes
                Feuchte-/Temperaturfühler
                Humidity/temperature probe
                  :
                  0636 9735

                  • Immersion / Penetration Probe

                • Immersion / Penetration Probe
                  Efficient and fast-action immersion probe, waterproof
                  Efficient and fast-action immersion probe, waterproof, T/C Type K
                    :
                    0602 0593
                  • Immersion / Penetration Probe
                    Waterproof immersion/penetration probe, TC Type K
                    Waterproof immerstion/penetration probe, T/C Type K
                      :
                      0602 1293
                    • Immersion / Penetration Probe
                      Fast-action, waterproof immersion/penetration probe
                      Super-quick, waterproof immersion/penetration probe, T/C Type K
                        :
                        0602 2693
                      • Immersion / Penetration Probe
                        Tauch-Messspitze, biegsam, TE Typ K
                        Immersion tip, flexible
                        Measuring range: -328° to 1832 °F (-200° to 1000 °C)
                          :
                          0602 5792

                          • Pressure Probe Accessories

                        • Pressure Probe Accessories
                          Absolutdrucksonde 2000 hPa
                          Absolute pressure probe 29 psi
                            :
                            0638 1835

                            • RFID Probe

                          • RFID Probe
                            T/C probe head for surface measurement
                            T/C probe head for surface measurement (T/C Type K)
                              :
                              0602 0394
                            • RFID Probe
                              Compact professional humidity module
                              Humidity probe head
                                :
                                0636 9736

                                • Surface probes

                              • Surface probes
                                Spare meas. head for pipe wrap probe, TC Type K
                                Spare measuring head with thermocouple strip for temperature probe with clamping bracket
                                  :
                                  0602 0092
                                • Surface probes
                                  Fast-reaction paddle surface probe
                                  Fast-reaction paddle surface probe, for measurements in inaccessible places, e.g. narrow apertures and slots, TC Type K
                                    :
                                    0602 0193
                                  • Surface probes
                                    Fast-action surface probe with sprung thermocouple strip
                                    Fast-action surface probe with spring thermocouple , for uneven surfaces, short-term range to +932°F, T/C Type K
                                      :
                                      0602 0393
                                    • Surface probes
                                      Efficient, waterproof surface probe with small measurement head
                                      Efficient, waterproof surface probe with small measurement head for flat surfaces, T/C Type K
                                        :
                                        0602 0693
                                      • Surface probes
                                        Fast-action surface probe with sprung thermocouple strip
                                        Fast-action surface probe with spring thermocouple for uneven surfaces, short-term to +932°F, T/C Type K
                                          :
                                          0602 0993
                                        • Surface probes
                                          Waterproof surface probe with widened measurement tip
                                          Waterproof surface probe with widenend measurement tip for flat surfaces, T/C Type K
                                            :
                                            0602 1993
                                          • Surface probes
                                            Flat head surface probe with telescopic handle max. 680 mm
                                            Flat head surface probe with telescopic handle (max. 24 in.) for hard-to-reach areas, T/C Type K
                                              :
                                              0602 2394
                                            • Surface probes
                                              Pipe wrap probe for pipe diameter 5 to 65 mm
                                              Pipe clamp probe for pipe diameter 0.2 to 2.5'', with replaceable measuring head. Measuring range to 536 °F short-term
                                                :
                                                0602 4592
                                              • Surface probes
                                                Clamp probe for measurements on pipes
                                                Clamp probe for measurements on pipes, pipe diameter 0.6 to 1'' (max. 1''), meas. range to +266 °F short-term
                                                  :
                                                  0602 4692
                                                • Surface probes
                                                  Magnetic probe (TC type K) - for surface temperatures
                                                  Magnetic probe, adhesive force approx. 20 N, with magnets, for measurements on metal surfaces
                                                    :
                                                    0602 4792
                                                  • Surface probes
                                                    Magnetfühler, Haftkraft ca. 10 N, mit Haft-Magneten
                                                    Surface temperature probe with magnet (TC type K), adhesive power 10 N – Measuring range -50 to +400°C
                                                      :
                                                      0602 4892
                                                    • Surface probes
                                                      Temperature probe to determine U-value, triple sensor system
                                                      Temperature probe to determine U-value, triple sensor system for measuring wall temperature, modelling clay included
                                                        :
                                                        0614 1635
                                                      • Surface probes
                                                        Pipe wrap probe with velcro strip
                                                        Temperature probe with Velcro (TC Type K)
                                                          :
                                                          0628 0020

                                                          • Thermocouples

                                                        • Thermocouples
                                                          Thermocouple with TC adapter, flexible, 800 mm long
                                                          Thermocouple with T/C adapter, flexible, 32 in. long, fibre glass, T/C Type K
                                                            :
                                                            0602 0644
                                                          • Thermocouples
                                                            Thermocouple with TC adapter, flexible, length 1500 mm
                                                            Thermocouple with T/C adapter, flexible, 60 in. long, fibre glass, T/C Type K
                                                              :
                                                              0602 0645
                                                            • Thermocouples
                                                              Thermocouple with TC adapter, flexible, 1500 mm long, PTFE
                                                              Thermocouple with T/C adapter, flexible, 60 in. long, PTFE, T/C Type K
                                                                :
                                                                0602 0646

                                                                • Additional Accessories

                                                              • Additional Accessories
                                                                Plug-in Power supply
                                                                Power Supply for products with a Mini-B USB connection.  5 VDC 500 mA with European adapter, 100-250 VAC, 50-60 Hz.  Includes interchangeable "plug" types for use in several countries.Plug-in Power supply, 5 VDC 500 mA with European adapter 
                                                                  :
                                                                  0554 0447
                                                                  $ 38.25
                                                                  1
                                                                • Additional Accessories
                                                                  External fast charger
                                                                  External recharger incld. 4 Ni-NMH rechargeable batteries with built-in international power supply - 100-240 V, 300 MA, 50/60 Hz, 12 VA/instrument
                                                                    :
                                                                    0554 0610
                                                                  • Additional Accessories
                                                                    Stainless steel sintered cap, Ø 0.47 in.
                                                                      :
                                                                      0554 0641
                                                                    • Additional Accessories
                                                                      Control and adjustment set for Testo humidity probes
                                                                      testo saline pots for control and humidity adjustment of humidity probes, 11.3 %RH and 75.3 %RH with adapter for humidity probe.
                                                                        :
                                                                        0554 0660
                                                                      • Additional Accessories
                                                                        Sintered PTFE filter,
                                                                        Teflon sintered filter, Ø 0.47 in., for corrosive substances
                                                                          :
                                                                          0554 0756

                                                                          • Cases

                                                                        • Cases
                                                                          testo 0516 1435 case
                                                                          Service case for measuring instrument, probe and accessories, dimensions 518 x 398 x 155 mm
                                                                            :
                                                                            0516 1435
                                                                          • Cases
                                                                            testo 0516 1035 case
                                                                            Service case for measuring instrument, probe and accessories, dimensions 454 x 319 x 135 mm
                                                                              :
                                                                              0516 1035
                                                                              $ 170.00
                                                                              1

                                                                              • Country Specific RFID Handles

                                                                            • Country Specific RFID Handles
                                                                              Radio handle for plug-in probe heads
                                                                              Wireless handle for attachable plug-in probe heads, incl. T/C adapter, approved for USA & Canada
                                                                                :
                                                                                0554 0191

                                                                                • Humidity RFID Probe

                                                                              • Humidity RFID Probe
                                                                                Radio Module for measuring instrument
                                                                                Radio module for measuring instrument, 869.85 MHz, approval for the countries: DE, FR, UK, BE, NL, ES, IT, SE, AT, DK, FI, HU, CZ, PL, GR, CH, PT, SI, MT, CY, SK, LU, EE, LT, IE, LV, NO
                                                                                  :
                                                                                  0554 0188
                                                                                • Humidity RFID Probe
                                                                                  Radio Module for measuring 915.00 MHz
                                                                                  Wireless module for measuring instrument, 915.00 MHz FSK, approved for USA & Canada
                                                                                    :
                                                                                    0554 0190

                                                                                    • Printer and accessories

                                                                                  • Printer and accessories
                                                                                    testo-Schnelldrucker IRDA mit kabelloser Infrarot-Schnittstelle
                                                                                    Compact printer, with IRDA technology offers fast, easy to read printouts of measurements at every job site.  Internal magnets will hold the printer to magnetic surfaces for hands free operation. *Compatible with any Testo device capable of IR or IRDA
                                                                                      :
                                                                                      0554 0549
                                                                                      $ 356.15
                                                                                      1
                                                                                    • Printer and accessories
                                                                                      Spare thermal paper
                                                                                      Spare thermal paper, permanent ink
                                                                                        :
                                                                                        0554 0568
                                                                                        $ 39.10
                                                                                        1

                                                                                        • Localising mould

                                                                                        Damp ceilings and walls may be a result of structural damage. In most cases, however, it is a sign of improper ventilation. Once the mould appears inside a house, the tenant assumes that moisture has come in from outside. Numerous disputes have erupted because of the issue of who is liable for the mould damage. However, it is difficult to find out who or what has caused the mould: the tenant or faulty structural design?

                                                                                        Testo 635-1 is ideal for measuring moisture in ceilings and walls. Using the optional attachment temperature/moisture probe and optional surface temperature probe, the testo 635 automatically calculates the dew point distance. It provides initial information about whether mould is being caused by condensation, or from moisture ingress due to structural damage or faulty insulation.

                                                                                        testo 635-1

                                                                                        Monitoring production and storage conditions

                                                                                        Our temperature/humidity measuring instruments are used around the world in production, storage and server rooms, museums, archives, cold storage warehouses, containers and sales counters.

                                                                                        Manufacturers, carriers, or dealers of sensitive products must ensure that specified temperature or humidity values are observed during production and storage. The testo 635 offers the option of performing spot measurements in relevant places.

                                                                                        The temperature/humidity measuring instrument testo 635-2 offers the user a wide range of humidity/moisture probes. It provides the option of measuring humidity, material moisture and U-value (for the thermal assessment of structural components). In addition to the standard probes, up to three radio probes can be connected to the device in parallel. Measurement results can be analysed, stored and documented using the supplied PC software.

                                                                                        testo 635-1