testo 164 H1 Mini Online Temperature & Humidity Data Logger
The testo 164 H1 is a small, easy-to-use device that monitors temperature and humidity 24/7. The sensors are built in, so you don’t need any extra probes.
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testo 164 H1 Temperature & Humidity Data Logger
Here’s how it works in practice: the logger measures temperature and humidity continuously and sends the readings wirelessly to the testo 164 Gateway. The gateway forwards the data to the Testo Saveris Cloud, where you can view live values, charts, and history from anywhere using the Testo Smart App or a web browser.
If your set limits are exceeded, you get instant alerts—push notifications on your phone, plus e-mail or (optional) SMS if you prefer. That means you can react quickly before small issues become big problems.
The 164 H1 is a great fit for food and pharma storage, server rooms/data centers, museums and archives, and any space that needs dependable 24/7 tracking.
To use the online/cloud features, you’ll need the testo 164 Gateway and a valid Data Monitoring License for the Testo Saveris Cloud.
testo 164 H1 Key Features
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Limit-violation alerts via push notification, e-mail, or (optional) SMS
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Automated temperature and humidity monitoring with an integrated sensor
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Connectivity to the Testo Smart App for quick setup, limit configuration, and dashboard viewing
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Automatic data documentation and storage in the Testo Saveris Cloud
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Data transmission to Gateway 164 via a proprietary wireless connection
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Compact, unobtrusive design for easy installation on a shelf, in a display case, or on a wall
Specifications
testo 164 H1 Specifications
Humidity — Capacitive
| Parameter | Value |
|---|---|
| Measuring range | 0 to 100 %RH (non-condensing) |
| Accuracy |
|
| Resolution | 0.1 %RH |
Temperature
| Parameter | Value |
|---|---|
| Measuring range | -10 to +50 °C |
| Accuracy | ±0.5 °C |
| Resolution | 0.1 °C |
General technical data
| Parameter | Value |
|---|---|
| Weight | 15 g |
| Dimensions | 62.6 × 38 × 17.5 mm |
| Operating temperature | -10 to +50 °C |
| Protection class | IP20 |
| Measuring rate | 1 min – 24 h |
| Communication rate | 1 min – 24 h |
| WLAN Connectivity | Sub 1 GHz; IEEE 802.15.4 |
| Power supply | Battery (non-replaceable) |
| Memory | 300 measuring values |
| Battery life | 8 years |
| Storage temperature | -30 to +60 °C |
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