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The tightest published tolerance on the shelf, with twenty-day curves and two years of export

GoveeLife H5171011

An indoor-outdoor thermo-hygrometer accurate to ±0.54 °F and ±3% RH, rated IP65, with twenty-day curves and app alerts.

GoveeLife 2-in-1 indoor outdoor thermo-hygrometer with lanyard and LCD display

GoveeLife H5171011

An indoor-outdoor thermo-hygrometer accurate to ±0.54 °F and ±3% RH, rated IP65, with twenty-day curves and app alerts.

Accuracy
±0.54 °F / ±3% RH
Sampling
Every 2 seconds
Protection
IP65 — rain and moisture, dustproof and sun-resistant; not for immersion
Weight
2.39 oz
Battery
Up to one year in Bluetooth mode
Alerts
Preset temperature and humidity thresholds, pushed to the app
Data
20-day curve readings; 2 years of free storage and export
Mounting
Nylon lanyard with adjustable buckle; hangs indoors or out
Display
LCD with a humidity comfort indicator, no ghosting
Gateway
Connects to GoveeLife gateways for remote monitoring
Amazon reference
B0FLQD2PC9
EAN
0810127738966
  • The tightest published accuracy on this shelf — ±0.54 °F and ±3% RH — and the fastest sampling at two seconds
  • The only device here with an ingress rating, IP65, so it works on a patio or a backpack
  • The alerts and the history need the app: on the device itself you get the current reading and a comfort icon

Best for: A patio, greenhouse or backpack, or any room where you want the history rather than the moment

≈ $21
Check price on Amazon

Specifications

Accuracy
±0.54 °F / ±3% RH
Sampling
Every 2 seconds
Protection
IP65 — rain and moisture, dustproof and sun-resistant; not for immersion
Weight
2.39 oz
Battery
Up to one year in Bluetooth mode
Alerts
Preset temperature and humidity thresholds, pushed to the app
Data
20-day curve readings; 2 years of free storage and export
Mounting
Nylon lanyard with adjustable buckle; hangs indoors or out
Display
LCD with a humidity comfort indicator, no ghosting
Gateway
Connects to GoveeLife gateways for remote monitoring
Amazon reference
B0FLQD2PC9
EAN
0810127738966

What the maker puts in writing

  • ±0.54 °F / ±3% RH · samples every 2 seconds
  • IP65: rain, dust and sun; not immersion
  • 2.39 oz · nylon lanyard · up to 1 year of Bluetooth battery
  • App thresholds and alerts · 20-day curves · 2 years of free export
  • Standalone LCD with humidity comfort indicator

Best documented instrument on the shelf

Four devices here publish an accuracy. This is the tightest of the four, and it also publishes a sample rate, an ingress rating, a weight and a battery life.

Both professional instruments on this shelf, at six and ten times the price, publish no accuracy at all. That is not a claim that this is the better instrument — it is a statement about which listing lets you judge.

The history is the other half

Twenty days of curves and two years of data to export. Every other device here shows you now and forgets it.

For damp, that is the difference between a number and a pattern: a bathroom at 70 per cent after a shower is normal, and a cellar at 70 per cent all winter is not.

Availability

Read on the day this page was built: $21 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-04. The live price is at the top of the page.

The questions that keep coming up

Is ±0.54 °F meaningful?

It is the tightest figure on this shelf, and tighter than the seven-dollar DOQAUS at ±1 °F and the TempPro at ±2 °F. More importantly it exists: the two German analog instruments here and both professional meters publish nothing.

Do I need the app?

For the thresholds, the alerts and the twenty-day curves, yes. For reading the temperature and humidity, no — the LCD works standalone with a comfort indicator. It is the only device on this shelf that offers both modes.

Can I leave it outside?

IP65 covers rain, dust and sun, and the listing is explicit that it must not be immersed. No other device on this shelf publishes any ingress rating, and the two TFA instruments say indoors only.

More thermo-hygrometers

  • General Tools RHMG650 9-in-1 thermo-hygrometer and moisture meter with backlit LCD

    General Tools RHMG650

    A nine-function instrument combining a thermo-hygrometer with a pin and pinless moisture meter, recalling twenty reading pairs.

    Measurements
    9, including humidity, dew point and vapor pressure
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    Temperature range
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    Memory
    Recalls 20 reading pairs
    Display
    Large backlit LCD
    Accuracy
    Not stated by the maker
    Refresh rate
    Not stated by the maker
    Calibration
    Not stated by the maker
    Amazon reference
    B00I140G2E
    EAN
    0681035016084
    • The only instrument on this shelf with a pin and pinless moisture meter, which reads moisture inside timber and plaster rather than in the air
    • Publishes dew point and vapor pressure, which only one other instrument here does
    • Two bullets: no accuracy, no humidity range, no refresh rate, no calibration statement

    Best for: Building and restoration work, where moisture in a material matters more than comfort in a room

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    Type
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    Dial
    5.9 in / 15 cm diameter, large black numerals
    Temperature
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    Humidity
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    Calibration
    Adjustment screw on the back for the temperature
    Scales
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    Mounting
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    Case
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    Refresh rate
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    Amazon reference
    B09P37W7CY
    EAN
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    • The only analog instrument on this shelf that publishes both tolerances and includes a calibration screw
    • A 5.9-inch dial with large numerals, readable across a room, which no digital display here matches for size
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    Displays
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    Readings
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    Data hold
    Yes
    External probe
    Optional 87P6, for contact and differential temperature
    Units
    User-selectable °F / °C
    Power
    Batteries; low-battery indicator and auto shut-off
    Stated uses
    Environmental studies, food distribution, HVAC/R installation, greenhouses, industrial spaces, saunas, humidors, museums, lab monitoring
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    Range
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    Amazon reference
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    EAN
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    Best for: HVAC work, a humidor, a museum case or a greenhouse, where dew point matters and the reading has to be recorded by hand

    ≈ $125
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Elsewhere in the spares drawer

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    Thread direction
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    Screen or filter
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    Amazon reference
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    EAN
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    Search Amazon for this model
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All thermo-hygrometers