Quick answer: The testo 162 H1 has integrated temperature and relative-humidity sensors plus a local display. Commission it on the supported Wi-Fi monitoring service, select representative room placement, set justified logging and alarm rules, and check that readings and notifications arrive in the dashboard. Do not interpret its RH channel as a measurement of moisture inside building materials.
Verified functions of the H1
Testo lists the H1 as product 0572 1624, with an internal NTC temperature sensor and capacitive RH sensor. Published temperature range is -30 to +50 °C, and RH range is 0–100% RH under non-condensing conditions. The stated humidity uncertainty varies with RH and temperature; one accuracy figure should not be quoted as covering all conditions. The device also has a display and online monitoring functions with the supported service. For the wider family comparison, see testo 162 configuration by model.
The 162 H1 requires the current system’s Data Monitoring license for cloud operation. Identify the service version before onboarding if an older Saveris installation already exists.
Choose a representative temperature/RH location
Place the housing away from direct sunlight, humidifier jets, exterior glazing and dense objects if the goal is representative room air. RH varies with local temperature; moving the logger near a cold surface can create a systematic difference without indicating failure. Use the product’s non-condensing operating requirement and ensure airflow is not obstructed.
Configure temperature and RH monitoring
- Record location, serial number and operating environment, including the critical environmental risks.
- Install batteries or the manufacturer-supported power option and mount the logger securely.
- Commission via the supported testo Smart App/Wi-Fi process and confirm two separate live channels: °C (or °F) and %RH.
- Set monitoring intervals and documented room-specific alarm limits. Check recipients, escalation and local clock synchronization.
- Compare both channels with appropriately calibrated references where the monitoring plan requires it; record conditions and stabilization time.
- Test a controlled event and demonstrate that the report contains channel labels, timestamp and alarm history.
Hypothetical condensation-risk comparison
Illustrative readings: the room is at 22 °C and 60% RH, while a nearby wall surface is independently measured at 12 °C. The approximate air dew point is 14 °C, so that surface may be cold enough for condensation. The H1 does not measure wall-surface temperature: the surface value needs a separate suitable instrument. Dew-point estimates depend on the calculation and measurement uncertainty. For a deeper explanation of wall condensation and surface temperature differences, see the related guide.
How to interpret different RH readings
| Situation | Likely investigation |
|---|---|
| H1 and a second RH logger disagree | Co-locate sensors, allow stabilization and compare stated uncertainties |
| Humidity jumps near a door | Check recent openings and localized moisture sources |
| Display updates but cloud dashboard does not | Check network/service timestamps |
| Condensation forms on the sensor | Stop assuming specified RH accuracy; inspect conditions and recovery instructions |
Reporting and upkeep
Keep readings, instrument location, calibration and any alarm acknowledgement. Annual drift and hysteresis information on the Testo specification indicate that environmental history matters. The H1 logs air parameters, not a mold diagnosis, leak location, direct water-content measurement or proof of room compliance without validated limits.