Skip to content

The only instrument here that keeps a high and a low without an app

TempPro TP53

A digital hygrometer accurate to ±2 °F with all-time and 24-hour high and low records and a touch-activated backlight.

TempPro TempAir digital hygrometer and indoor thermometer with wide LCD display

TempPro TP53

A digital hygrometer accurate to ±2 °F with all-time and 24-hour high and low records and a touch-activated backlight.

Temperature accuracy
±2.0 °F (±1.1 °C)
Humidity accuracy
±2 to 3% RH
Refresh
Every 10 seconds
Records
All-time and 24-hour high and low, stored and displayed
Comfort indicator
Yes
Backlight
Touch-activated, via a button below the display
Mounting
Holder, hanging hole and magnetic back
Range
Not stated by the maker
Logging
High and low only — no curve or export
Amazon reference
B079N98K93
EAN
6971604200285
  • The only device on this shelf that keeps high and low records — both 24-hour and all-time — without needing an app
  • Publishes both tolerances, with the humidity figure tighter than two cheaper devices here
  • A ten-second refresh, the slowest of the three published on this shelf

Best for: A nursery, cellar or greenhouse where the overnight low matters more than the live reading

≈ $16
Check price on Amazon

Specifications

Temperature accuracy
±2.0 °F (±1.1 °C)
Humidity accuracy
±2 to 3% RH
Refresh
Every 10 seconds
Records
All-time and 24-hour high and low, stored and displayed
Comfort indicator
Yes
Backlight
Touch-activated, via a button below the display
Mounting
Holder, hanging hole and magnetic back
Range
Not stated by the maker
Logging
High and low only — no curve or export
Amazon reference
B079N98K93
EAN
6971604200285

What the maker puts in writing

  • ±2.0 °F (±1.1 °C) · ±2 to 3% RH
  • Refreshes every 10 seconds
  • All-time and 24-hour high and low, stored
  • Touch-activated backlight
  • Holder, hanging hole and magnetic back

Memory without a phone

Nine devices on this shelf. One logs curves and exports two years of data, and it needs an app to show them. One keeps a high and a low on its own screen.

For most households the second is the useful one: you glance at it in the morning and know how cold the nursery got.

Two tolerances, honestly uneven

Humidity to within two or three per cent is good — tighter than the cheaper devices here. Temperature to within two degrees Fahrenheit is loose, and a device five dollars above it publishes just over half a degree.

Both figures are published, which puts this in the minority on this shelf.

Availability

Read on the day this page was built: $16 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

What does all-time high and low give me?

The worst the room has been since you reset it. For a cellar, a nursery or anywhere you are worried about damp or cold, that single pair of numbers answers more than the live reading does — and it is the only device on this shelf that keeps them without a phone.

Is a ten-second refresh slow?

For a room, no: temperature and humidity do not move that fast indoors. It is the slowest figure on this shelf — the GoveeLife samples every two seconds and the DOQAUS every five — and it matters only if you want to watch a change happen.

How does it compare with the DOQAUS here?

This one publishes a tighter humidity tolerance — ±2–3% against ±5% — and keeps high and low records. The DOQAUS refreshes twice as fast, publishes a tighter temperature figure at ±1 °F, and costs less than half as much.

More thermo-hygrometers

  • TFA Dostmann analog thermometer and hygrometer with metal ring bezel

    TFA 45.2024

    A German-made analog thermo-hygrometer with a metal ring, publishing the optimal indoor ranges it is read against.

    Type
    Analog — no batteries
    Case
    Metal ring
    Origin
    Completely made in Germany
    Comfort zones
    Marked on the dial
    Stated targets
    Optimal temperature 18–22 °C (64 to 72 °F); optimum humidity 40–60%
    Mounting
    For hanging, indoors only — house, basement or garage
    Temperature accuracy
    Not stated by the maker
    Humidity accuracy
    Not stated by the maker
    Amazon reference
    B0044XII3A
    EAN
    4009816020284
    • The only listing on this shelf that publishes the target ranges — 18 to 22 °C (64 to 72 °F) and 40 to 60% RH — so the reading means something without looking it up
    • A metal ring rather than a plastic bezel, and German manufacture, both stated
    • No accuracy figure for either measurement

    Best for: A hallway or a cellar wall, for someone who wants the comfort band marked rather than calculated

    ≈ $37
    Check price on Amazon
  • TFA Dostmann analog thermo-hygrometer, slim upright case with twin dials

    TFA 45.2043.51

    A German-made analog thermo-hygrometer with a synthetic-hair hygrometer and marked comfort zones.

    Type
    Analog — no batteries
    Hygrometer element
    Synthetic-hair precision hygrometer
    Origin
    Entirely manufactured in Germany
    Comfort zones
    Marked: dry, ideal, wet
    Mounting
    Wall mounted or freestanding
    Use
    Indoor only — house, basement or garage
    Temperature accuracy
    Not stated by the maker
    Humidity accuracy
    Not stated by the maker
    Range
    Not stated by the maker
    Amazon reference
    B01KLSUYLK
    EAN
    4009816029379
    • The only instrument on this shelf whose sensing element is named: a synthetic-hair hygrometer, which lengthens with humidity and needs no power
    • Made entirely in Germany, stated, which no other listing on this shelf claims for any country
    • A bullet headed "Precision" that gives no figure — and five of the nine devices on this shelf are in the same position

    Best for: A room where an instrument should last decades without a battery and look like an instrument

    ≈ $40
    Check price on Amazon
  • SwitchBot Bluetooth indoor thermo-hygrometer with app connectivity

    SwitchBot Thermometer Hygrometer Indoor

    SwitchBot's standalone indoor thermo-hygrometer, pairing over Bluetooth to log temperature and humidity history in the SwitchBot app, alongside dew point and VPD readouts. Confirmed with a live offer on Amazon.de; we found the same listing on Amazon.fr but did not confirm a live offer there at the time of checking.

    Measures
    Indoor temperature, relative humidity, dew point, VPD
    Connectivity
    Bluetooth, with data logging via the SwitchBot app
    Power
    Battery-powered, per the listing
    EAN
    0850007706241
    • Confirmed with a live Amazon offer on Germany at the time of checking
    • App logging adds a history graph the basic TFA instrument in this family doesn't offer
    • We found a matching listing on Amazon.fr but did not confirm a live offer there at the time of checking

    Best for: Anyone who already owns the SwitchBot CO2 monitor and wants humidity and temperature logged in the same app, rather than reading a standalone display.

    Search Amazon for this model

Elsewhere in the spares drawer

  • Aygrochy black 150 mm flexible exhaust hose with two stainless-steel hose clamps

    Aygrochy 150 mm (5.91 in), Black

    A 150 mm (5.91 in) exhaust hose Aygrochy states at 153 mm (6.02 in) diameter and up to 3 meters (10 ft) long, built from a PVC membrane, steel wire and a double aluminum-foil layer, rated -30°C (-22 °F) to +100°C (212 °F) and stated to pass the GB8624 B1 combustion test. Ships with two stainless-steel hose clamps. Aygrochy markets it as a universal fit rather than for one declared appliance model.

    Diameter
    153 mm (6.02 in), per Aygrochy
    Length
    Up to 3 m (10 ft)
    Material
    PVC membrane, steel wire and a double layer of aluminum foil
    Temperature range
    -30 °C (-22 °F) to +100 °C (212 °F), stated to pass the GB8624 B1 combustion test
    Included hardware
    2 stainless-steel hose clamps
    Color
    Black
    Amazon reference
    B0BQJ1SLYP (identical on DE/FR/IT/ES; no EAN published)
    • Confirmed with a valid New-condition price on all four European markets checked (DE, FR, IT, ES), each with 2 active seller offers at the time of checking
    • Wider published temperature range (up to +100 °C (212 °F)) than the HG Power or FanGoFast hoses in this hub, plus a stated GB8624 B1 combustion-test pass
    • No declared compatibility with any specific appliance model — it is sold by diameter (153 mm (6.02 in)), not by machine

    Best for: A short universal 150 mm (5.91 in) hose run, for a buyer who wants a stated fire-test result and doesn't need more than 3 m (10 ft) of reach.

    Search Amazon for this model
  • CREATCABIN fabric dust cover for tower and pedestal fans

    CREATCABIN Tower Fan Dust Cover 125x60cm

    A generic-sized fabric dust cover for tower and pedestal fans, at 125x60cm (49.2 × 23.6 in). This is a universal-fit accessory rather than one built for a specific reviewed model — check your fan's actual height and base width against this size before buying. Confirmed with a live offer on Amazon.de; we did not find a listing on the other three markets we checked.

    Dimensions
    125cm (49.2 in) tall x 60cm (23.6 in) wide, per the listing
    Fit type
    Generic / universal — not model-specific
    Material
    Fabric, stated dust-resistant
    • Cheap, and confirmed with a live offer on Amazon.de
    • A generic size that covers most tower and taller pedestal fans, rather than requiring a model-exact match
    • Generic fit — measure your specific fan before ordering, since this isn't built for any one model reviewed on this site

    Best for: Anyone storing a tower or tall pedestal fan off-season who has already checked their fan's height and base width fall within 125x60cm (49.2 × 23.6 in).

    Search Amazon for this model
  • DAODEFUL third-party replacement filter for the Xiaomi Smart Air Purifier 4 Compact

    DAODEFUL Replacement Filter for Xiaomi Smart Air Purifier 4 Compact

    A third-party replacement filter, made by DAODEFUL rather than Xiaomi, built for the Smart Air Purifier 4 Compact. We confirmed a live third-party offer on Amazon.de; we did not find a confirmed listing on the other three markets we checked.

    Filter type
    HEPA replacement filter, per the listing
    Compatible model
    Xiaomi Smart Air Purifier 4 Compact
    Source
    Third-party (DAODEFUL), not an official Xiaomi part
    Amazon reference
    B0H3DGGMLV (DE, third-party offer)
    • Built specifically for the Air Purifier 4 Compact rather than sold as a universal fit
    • A confirmed, live third-party offer on Amazon.de at the time of checking
    • Third-party, not a Xiaomi-branded part — no manufacturer warranty coverage on the filter itself

    Best for: Owners of the Xiaomi Air Purifier 4 Compact who are comfortable with a third-party filter and can order from a German-shipping listing.

    Search Amazon for this model

All thermo-hygrometers