TempPro TempAir PLUS TP220B Wireless Thermometer with 3 Sensors

Sensors: TempPro TempAir PLUS TP220B is a battery-powered wireless thermometer system for monitoring indoor and outdoor conditions across multiple locations. Its listing describes three channels, temperature and humidity readings, adjustable alerts and a claimed wireless range of up to 500 ft, making it suited to remote spaces where checking conditions in person is inconvenient.

At a glance

The listing describes monitoring across three channels and says readings can be checked for multiple locations from the display.
A claimed 500 ft wireless range may help place sensors away from the main unit, although real-world reception depends on the setting.
Adjustable temperature and humidity limits are described for alerts when readings move outside the selected range.
The listing says temperature and humidity high/low history is available for all-time and 24-hour periods.
The product is described as pre-paired and supplied with nine AAA batteries for setup.

Price

$29.99Save 25%

Reference price: ~~$39.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Multiple sensor channels can make it easier to compare conditions in separate rooms or remote areas from one display.
Temperature and humidity alerts and recorded highs and lows support routine monitoring of spaces such as a greenhouse, cellar or garage.
The listing claims a long wireless range and states that batteries are included.

Technical specifications

19 specifications

Identity
Brand	TempPro
Model	TempAir PLUS TP220B

Monitoring and display
Screen technology listed	Digital
Indoor and outdoor use	Indoor, Outdoor
Claimed channels	3 Channels
Claimed sensor accuracy	+/-0.9°F and +/-2-3% RH
Temperature upper range listed	60 °F
Data history claimed	all-time/24-hour high & low data history for humidity and temperature
Comfort indicator claimed	DRY, COMFORT, WET

Connectivity and controls
Wireless connection listed	RF Technology
Wireless range claimed	500ft
Alerts claimed	Set your ideal temperature and humidity range, and receive instant alerts on the room thermometer indoor whenever conditions deviate

Power and materials
Power configuration	Battery Powered
Battery requirement	9 AAA batteries required. (included)
Outer material	Plastic
Color	Blue
Product care	Wipe Clean

Other listed details
Specification listed	FCC
Reusability	Reusable

What to know before buying

Listing details to confirm

The listing says three channels and three sensors, but also describes monitoring four locations simultaneously. The stated temperature upper range of 60 °F is unclear in context, so confirm the intended range and channel setup before relying on these details. The 500 ft range, accuracy and waterproof sensor are listing claims, not independently verified here.

What’s in the box

Included

9 AAA batteries

Who is it for?

A good fit for

People who want to monitor indoor and outdoor temperature and humidity at several locations from one unit.
Owners of spaces such as a greenhouse, garage, basement or cellar who can benefit from threshold alerts and high/low history.

Less suited to

Buyers who need app-based or internet-connected monitoring, since the listing specifies RF technology and does not establish app support.
Anyone who must confirm a particular operating temperature range or exact number of simultaneous locations before purchase.

TempPro TempAir PLUS TP220B Wireless Thermometer with 3 Sensors · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 87 ratings

5 stars71%71%
4 stars9%9%
3 stars4%4%
2 stars6%6%
1 star10%10%

Customer feedback reports favorable impressions of accuracy, operation, setup and ease of use, including a mention that the remote sensors and base showed matching readings. Those impressions are relevant to a multi-location temperature and humidity monitor, but do not verify the listing's accuracy or range claims. The rating distribution is mostly five-star, with a smaller spread of lower ratings, so experiences are not uniformly positive.

Positive themes

Customers describe the thermometer as accurate and easy to set up and use.
Feedback also describes the device as functioning well and as good value.

Frequently asked questions

How many locations can this thermometer monitor?

The listing describes three channels and three sensors, but also claims monitoring four locations simultaneously. Because those descriptions do not agree, confirm the supported channel count for the selected listing.

Does it monitor humidity as well as temperature?

Yes. The product description states that it monitors both temperature and humidity and offers adjustable limits for alerts.

What is the wireless range?

The listing claims a range of 500 ft. Actual reception may vary with walls and other conditions, and the claim is not independently verified here.

Are batteries included?

The listing says nine AAA batteries are included.