Yomisee 4-Pack Digital Room Thermometer and Hygrometer

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Product guide

Yomisee 4-Pack Digital Room Thermometer and Hygrometer

Yomisee’s four-pack digital room thermometer and hygrometer displays temperature and humidity, with a comfort indicator and compact LCD format. Its stated measuring ranges and accuracy suit general room monitoring, while mixed feedback on battery life is worth weighing for devices intended to run continuously.

At a glance

Displays both temperature and relative humidity, with readings updated every 10 seconds.
The comfort indicator shows a smile when humidity is between 40% and 74%, and an unpleasant expression outside that interval.
Large-font LCD readings are intended to be readable from a distance.
The listing describes wall stickers for wall mounting and also says the units can stand on a table or bookshelf.

Price

£8.49Save 15%

Reference price: ~~£9.99~~

Price checked: 12 Nov 2026

View offer Ahead of Black FridayExplore the selection

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Pros and cons

Pros

A four-unit pack can monitor separate rooms or spaces at the same time.
The display combines temperature and humidity readings with a simple humidity comfort cue.
CR2032 batteries are claimed to be included, so separate battery sourcing may not be needed initially.

Cons

Customer feedback reports mixed experiences with battery life, which may matter if the monitors are used continuously.

Technical specifications

14 specifications

Identity and installation
Brand	Yomisee
Mounting type listed	Wall Mount
Colour	White
Number of items	4
Manufacturer part number	WSDJ

Temperature and humidity
Temperature measurement range	-20 ℃ ~ + 60 ℃ (-4 °F ~ + 140 °F)
Temperature measurement accuracy	± 1.0 ℃
Temperature resolution	0.1 ℃
Humidity measurement range	10%RH ~ 99%RH
Humidity measurement accuracy	±5%RH
Humidity resolution	1%RH
Reading update interval	10 seconds

Power and display
Battery type	CR2032
Battery included	including battery

What to know before buying

Listing details to confirm

The listing says wall stickers can be used for mounting and separately describes table or bookshelf placement, while the specification table lists only Wall Mount. The stated temperature accuracy appears in two formats, and battery inclusion is claimed in the feature text but the included-components field says "no". Confirm the selected listing's mounting and package details before buying.

What’s in the box

CR2032 batteryCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

People wanting several simple temperature and humidity displays for rooms, offices, greenhouses or storage areas.
Buyers who value a quick visual humidity cue rather than a remote-connected monitor.

Less suited to

Buyers needing a stated long-term battery-life guarantee or precise high-accuracy environmental measurement.

Yomisee 4-Pack Digital Room Thermometer and Hygrometer · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 724 ratings

5 stars62%62%
4 stars19%19%
3 stars11%11%
2 stars2%2%
1 star6%6%

Customer feedback highlights perceived accuracy for temperature and humidity readings, compact size and discreet placement, with functionality and value also mentioned positively. Battery life receives mixed comments. For buyers placing all four monitors in separate spaces, that concern may matter more for ongoing convenience than the listed 10-second reading updates. These are customer perceptions, not independent performance measurements.

Positive themes

Customers describe the temperature and humidity readings as accurate.
Customers appreciate the compact, inconspicuous size and report positive experiences with functionality and value.

Mixed feedback

Battery life receives mixed feedback, including disappointment from some customers.

Frequently asked questions

What does the comfort indicator show?

The listing says it displays a smile when humidity is between 40% and 74%, and an unpleasant expression when humidity is below 40% or above 74%.

What temperature and humidity ranges are stated?

The listed temperature range is -20 ℃ ~ + 60 ℃ (-4 °F ~ + 140 °F), and the humidity range is 10%RH ~ 99%RH.

Are batteries included?

The feature text claims a CR2032 battery is included, but the included-components field says "no". Check the selected listing to clarify what is supplied.

Can the monitors be placed on a shelf?

The feature text says they can sit on a table or bookshelf, but the mounting specification lists Wall Mount. The exact mounting options should be confirmed.