Quick answer: The testo 160 is a family of networked loggers, not one device with identical sensors. For temperature choose a 160 T; for integrated temperature and humidity consider a 160 TH; for a museum display case needing remote humidity, light or UV probes, choose a 160 E with the required external sensor. Configure each logger using the supported Testo cloud/app service and a working Wi-Fi connection.
First select a 160 model by measured quantity
| Model | Built-in measurement | External probes / use |
|---|---|---|
| testo 160 T | Temperature | Integrated sensor for room or space temperature |
| testo 160 TH | Temperature and relative humidity | Room-climate monitoring with integrated sensors |
| testo 160 E | No built-in environmental sensing channel assumed for monitoring | Connect compatible remote RH/temperature, lux or lux/UV sensors |
The 160 models are often used for discreet monitoring of museum, archive and display environments; applications can extend to other suitable spaces. Do not write “testo 160 measured 45% RH” without recording which actual model and sensor produced that value.
Understand the system and subscriptions
Current Testo documentation describes commissioning with the testo Smart App and recorded data in testo Smart Connect / Saveris Cloud, with a Data Monitoring license on the current online system. Some older 160 E documentation refers to different cloud portals or Basic/Advanced licenses. The required account and software depend on the installed device generation and service contract; verify before moving an existing site to a new app. For the external-probe model mentioned in the documentation, see the testo 160-E external probe guide.
Configure monitoring from a site survey
- Document each collection/display room and the parameter that can damage the stored object or disrupt the process.
- Select T, TH or E based on actual sensor coverage; choose and connect the correct optional probe before mounting an E.
- Confirm network access at the installed position, including security/network requirements and an approved power arrangement.
- Add the instrument using its supported onboarding workflow and a licensed monitoring environment.
- Set sampling/reporting intervals and documented alarm thresholds, then assign named recipients.
- Perform a controlled alarm and a connectivity interruption test; inspect timestamps and retained measurements before signing off.
Worked example: different logging frequencies
Hypothetical: a temperature logger records at 15-minute intervals, so it generates 96 scheduled values per day. A separate humidity channel at 5-minute intervals generates 288 scheduled values per day. More readings may show fast fluctuations better but also increase the volume of observations to review; interval selection should reflect the monitoring objective and the system’s supported limits. For broader guidance on choosing logging intervals, see sampling intervals for accuracy and storage.
Measurement placement is part of accuracy
Keep the sensor away from direct radiant heating, visitors’ breath, humidifier outlets and enclosure walls if the objective is representative air conditions. An E sensor mounted inside a sealed display case can show different relative humidity from a logger body on the room wall. Document both sensor position and enclosure conditions; neither is automatically wrong. For comparable temperature-and-humidity logger guidance on placement and reviewing the recorded data, see the testo 174 H placement and data review.
If data stop updating
- Check device power and Wi-Fi signal at the actual installation point.
- Verify that the monitoring license/account and connected service are active.
- Check timestamp of the last stored value before declaring the sensor failed.
- Confirm an E has a supported external probe installed; no probe means no corresponding measurement.