Testo 623 Thermohygrometer with History Display - 0560 6230


0560 6230

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The compact and elegantly designed testo 623 ambient climate meter provides you with a quick and convenient means of measuring the temperature and humidity in offices, living spaces and commercial premises and logs the readings over a period of 90 days.

The temperature and humidity measuring instrument testo 623 shows current and past temperature and humidity values as well as date and time, simultaneously in a large, clear display. This way, you have all important values constantly in view.


  • Histogram shows measurement values of last 90 days
  • All important values at a glance
  • Large, easily legible display
  • Analysis of past temperature and humidity measurement values directly on site
The testo 623 Ambient Climate Meter – technical features

The testo 623 Ambient Climate Meter is designed to monitor the indoor temperature and humidity accurately and reliably. User-defined settings allow you to determine the length of the intervals between measurements – from 5 minutes to 24 hours. The readings are saved automatically over a period of 90 days and an alarm alerts the room’s occupants when a threshold has been reached.

The large, easy-to-read display shows a variety of information including the last reading, the time and date and a 90-day statistic. This statistic allows you to carry out a long-term analysis of the indoor temperature or humidity of the room without first having to access your computer.

The long-term stable sensor guarantees long-term, high-quality readings. You know you can rely on your meter to provide you with reliable readings for years to come.

The elegantly designed testo 623 Ambient Climate Meter fits seamlessly into any environment. It can be placed on a desk or table like a digital photo frame or fixed to a wall. A table and wall mount are both included.


  • Testo 623 thermohygrometer
  • Wall and table mount
  • Batteries
  • Protocol certificate


  Temperature - NTC Humidity - Capacitive
Measuring range -10 to +60 °C 0 to 100 %RH*
Accuracy ±0.4 °C ±2 %RH + 1 Digit at +25 °C (10 to 90 %RH)
±3 %RH Remaining Range
Resolution 0.1 °C 0.1 %RH

* Not for condensing atmospheres. For continuous use in high humidity (>80 %RH at ≤30°C for >12 h, >60 %RH at >30°C for 12 h), please contact us via our website. Please see the additional accuracy information for humidity in the instruction manual.

General technical data
Operating temperature -10 to +60 °C
Storage temperature -20 to +60 °C
Measuring rate 20 s
Product-/housing material ABS
Protection class IP30
EU-/EG-guidelines 2004/108/EG
Battery type 4 x type AA batteries
Battery life 12 Months
Storage temperature -20 to +60 °C
Dimensions 185 x 105 x 36 mm
Weight 240 g


Buy with 100% confidence knowing your purchase is backed by the full Manufacturer's Warranty. Please register your product with provided warranty card.


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