Digital Hygrometer Indoor Thermometer
±2% RH accuracy with a 10-second refresh — watch your room respond to the humidifier in real time.
- ±2% RH, ±0.5 °F accuracy (Swiss sensor)
- 10-second refresh rate
- ASHRAE-based comfort indicator
- Magnetic back + kickstand + wall mount
- Max/min records with daily reset
- AAA battery, ~12 months
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Specifications
- Humidity range
- 10–99% RH, ±2% RH
- Temperature range
- 14–140 °F, ±0.5 °F
- Refresh
- Every 10 s
- Power
- 1 × AAA (included)
- Compliance
- FCC · CE · RoHS
Ratings on marketplaces
3,102 ratings
In the box
- Hygrometer
- AAA battery
- Adhesive wall plate
- Quick-start guide
Detail
Why it is built this way
Ten seconds, not ten minutes
Cheap hygrometers refresh once a minute and drift within months. The sensor here updates every 10 s and holds ±2% RH, which is fast enough to watch a humidifier actually change the room.
You can see whether the $200 dehumidifier is doing anything before the mould does.
Comfort judged by a real standard
The dry / comfortable / humid indicator follows ASHRAE 55, the comfort standard building engineers use, instead of an arbitrary scale invented for packaging.
Magnetic back, kickstand and wall slot in the box; a AAA lasts about a year.
The full story
Most cheap hygrometers refresh every minute and drift within months. Ours uses a Swiss-made sensor, refreshes every 10 seconds, and holds ±2% RH calibration across its rated range.
The comfort indicator (dry / comfortable / humid) is tuned to ASHRAE 55, the standard building engineers use — not an arbitrary scale.
Three mounting options in the box: magnetic back, retractable kickstand, wall-mount slot. Runs a year on a AAA.
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