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Three small square white hygrometer thermometers with digital displays

Atogou A01-3 3-Pack Mini Hygrometer Thermometer White

SKU CH-88QJ-QMEPX MPN A01-3

Three compact hygrometer-thermometers measure 20–99 % RH and 14–140 °F with ±5 % RH and ±1.8 °F accuracy, update every ten seconds, and mount with included tape

  • Battery runtimeLithium Coin Cell
  • Measuring range14 degrees fahrenheit to 140 degrees fahrenheit
  • Accuracy±5%RH ±1.8?(±1?)
  • Operating conditions14 degrees fahrenheit / 140 degrees fahrenheit
  • Storage conditions14 degrees fahrenheit to 140 degrees fahrenheit
  • Product typeHygrometer *3;LR44 battery *3 (extra spare);Double-sided tap
  • Three-pack covers multiple rooms with one purchase
  • Accurate humidity tracking within ±5% RH across 20–99% range
  • Reliable temperature readings within ±1.8°F from 14–140°F
  • Updates every ten seconds for fast response to changes
  • Compact 1.8-inch diameter fits tight spaces and mounts anywhere

Compact Three-Pack Monitoring

The Atogou A01-3 provides three miniature hygrometer thermometers in white. Each unit measures temperature from 14 to 140 degrees_fahrenheit and humidity from 20%RH to 99%RH. The 1.8 inch diameter devices suit home, office, car, cellar, tank, humidifier, 3D printer or reptile enclosure monitoring. Double-sided tape allows wall mounting or embedding in jars and boxes.

Passive Operation Stability

No active cooling or power draw exists beyond the included LR44 coin cell. Battery life spans extended periods under normal indoor conditions. The upgraded vent design improves airflow for accurate readings without fan noise. Measurement updates occur every ten seconds. Double-click the rear button to toggle Celsius and Fahrenheit; long-press powers the unit on or off.

Single-Point Upgrade Path

This pack replaces standalone analog dials or single digital probes that lack simultaneous multi-location tracking. The jump is worthwhile when you need three synchronised sensors with ±5%RH and ±1.8? accuracy. It does not suit buyers who want data logging, wireless alerts or calibration certificates. The fixed display layout cannot swap temperature and humidity positions.

How it compares

Measured against everything we stock in Digital Thermometers & Hygrometers, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 91% of the 925 comparable items (median $23.99).

Specifications

Product
Brand nameAtogou
Part numberHM-01-3p-W
Product typeHygrometer *3;LR44 battery *3 (extra spare);Double-sided tape *6
Product colorWhite
Performance
Accuracy±5%RH ±1.8?(±1?)
Power
Battery runtimeLithium Coin Cell
Size & build
Product dimensions28 in × 28 in × 25 in
Environment & compliance
Operating conditions14 degrees fahrenheit / 140 degrees fahrenheit
Storage conditions14 degrees fahrenheit to 140 degrees fahrenheit
More details
Measuring range14 degrees fahrenheit to 140 degrees fahrenheit

Questions about this item

How do I install the three hygrometers and what step is often missed?

Peel the six supplied double-sided tapes, stick one on each unit's back, press firmly for 15–30 minutes while the sensors acclimate, then double-click the rear button to choose °F or °C.

What maintenance will the three units need over time?

Each hygrometer runs on one LR44 coin cell; the pack includes three spare batteries, so swap cells when readings drift or the display dims.

What limit appears first during continuous use in a hot or cold space?

Operating beyond 14 °F to 140 °F can drain the LR44 rapidly and cause measurement deviations, so that temperature envelope is the first constraint.

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