Testo 645 - Humidity/Temperature Measuring Instrument [SKU 0560 6450]
testo 645 - Humidity/Temperature Measuring Instrument
- High-precision humidity measurement up to ± 1% RH
- Internal reading memory (3,000 readings)
- Convenient data evaluation via optional PC software
- Possibility of attaching a really wide range of optional probes thanks to a large accessory portfolio
This meter uses a sensor to start up.
Product Description
The testo 645 high-precision humidity and temperature measuring instrument offers two probe inputs for attaching a comprehensive range of probes:
- Channel 1: temperature probe, type K/J/S, NTC
- Channel 2: humidity/temperature probe or Pt 100 temperature probe
Areas of application of the testo 645 humidity/temperature measuring instrument
- Monitoring of temperature and humidity values in production, storage and server rooms, museums, archives, cold stores, containers and display cases
- Location of mould formation in residential or other buildings
Delivery Scope
testo 645 humidity/temperature measuring instrument, including battery.
Technical Data
Temperature - Pt100 | |
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Measuring range | -200 to +800 °C |
Accuracy |
±0.1 % of mv (200.1° to 800 °C) ±0.2 °C (-200 to 200 °C) |
Resolution | 0.1 °C |
Temperature - NTC | |
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Measuring range | -50 to +150 °C |
Resolution | 0.1 °C |
Temperature - TC Type K (NiCr-Ni) | |
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Measuring range | -200 to +1370 °C |
Accuracy |
±0.5 % of mv (-200 to -60.1 °C) ±0.5 % of mv (+60.1 to +1370 °C) ±0.3 °C (-60 to +60 °C) |
Resolution | 0.1 °C |
Temperature - TC Type J (Fe-CuNi) | |
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Measuring range | -40 to +750 °C |
Accuracy |
±0.5 % of mv (-200 to -60.1 °C) ±0.5 % of mv (+60.1 to +750 °C) ±0.3 °C (-60 to +60 °C) |
Resolution | 0.1 °C |
Temperature - TC Type S (Pt10Rh-Pt) | |
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Measuring range | -50 to +1700 °C |
Humidity - Capacitive | |
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Measuring range | 0 to 100 %RH |
Accuracy | see probe data |
Resolution | 0.1 %RH (-50 to +150 °C) |
General technical data | |
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Dimensions | 215 x 68 x 47 mm |
Operating temperature | 0 to +50 °C |
Housing | ABS |
Number of channels | 2-channel |
Warranty | 2 years |
Battery type | 9V block battery |
Battery life | 45 h |
Battery feaute | The hour times are reduced by a factor of 5 if a 9V rech. battery is used |
Display type | LCD |
Display size | 4 lines |
Storage temperature | -20 to +70 °C |
Weight | 255 g |
Donwloads
Product Brochures
Product brochure testo 645 (PDF, 801.1 kB)
Manuals
Instruction manual testo 645 (PDF, 1.7 MB)
Overview of controls testo 645 (PDF, 67.6 kB)