Can this detect cigarette smoke specifically?

If by "detect cigarette smoke specifically" you mean, does the Temtop list the specific causes of unhealthy air, no it doesn't. However, it will change the level of air polution when cigarette smoke or other polutants in the air in 2 specific readings: the level of PM2.5 polutants, listing them as healthy or unhealthy, and of AQI of Air Quality Index, listing it as good, moderate or dangerous. I find it extremely helpful.

Why did the manufacturer unnecessarily shrink the third digit in 3 of the 4 fields? Looks unattractive.

I imagine it was a better alternative than using space for a decimal point.

What type/size of battery is used? How many batteries are required? Are the batteries replaceable? Assuming rechargeable type, any limit on max mAH?

It's a built-in rechargeable battery. Uses USB-C to charge. Battery life is quite good.

Most of the reviews complain that the battery has a short life. Would there be any problem if I left it plugged in 24/7?

Keeping the AirTemp on 24/7 will dramatically shorten its life. However, it is very easy to turn on and off. I turn mine on for a minute or two three times a day which lengthens total battery life from as little as 4 hours to as long as more than a year.

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Temtop S1+ Smart Air Quality Monitor with Indoor Thermometer Hygrometer | PM2.5 AQI Temperature Humidity Detector with App Connectivity, 60-Day Battery Life for Home, Office, Nursery, School

Temtop S1+ Smart Air Quality Monitor with Indoor Thermometer Hygrometer | PM2.5 AQI Temperature Humidity Detector with App Connectivity, 60-Day Battery Life for Home, Office, Nursery, School

Product ID: 518760764

Details

Battery Description
[Built-in
Brand
Temtop
Operating Humidity
10-90%
Temperature Accuracy
0.5
Upper Temperature Rating
55 °C

📱App connectivity for remote monitoring

🔋60-day rechargeable battery life

🌡️Accurate temp & humidity sensing ±0.5°C

€ 85.87

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Description

🌬️ Breathe smart, live smarter — your air’s new best friend!

CRYSTAL CLEAR DISPLAY - Quickly assess temperature, humidity, and air quality with an intuitive, easy-to-read screen.
ULTRA LONG BATTERY LIFE - Enjoy up to 60 days of uninterrupted monitoring without the hassle of frequent charging.
SEAMLESS APP INTEGRATION - Stay connected anywhere via Bluetooth and receive proactive notifications on your phone.
COMPACT VERSATILE DESIGN - Sleek, portable device fits perfectly in your home, office, nursery, or classroom.
REAL TIME AIR QUALITY INSIGHTS - Monitor PM2.5 and AQI instantly with smart alerts to breathe easier every day.

The Temtop S1+ is a smart indoor air quality monitor that tracks PM2.5, AQI, temperature, and humidity with ±0.5°C accuracy. Featuring Bluetooth app connectivity, it offers real-time alerts and remote monitoring. Its rechargeable battery lasts up to 60 days, making it a reliable, portable solution for maintaining healthy environments in homes, offices, nurseries, and schools.

Specifications

ASIN	B0D1K5TV89
Battery Description	[Built-in Rechargeable]
Best Sellers Rank	#4,092 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Indoor Air Quality Meters
Brand Name	Temtop
Customer Reviews	4.1 4.1 out of 5 stars (144)
Included Components	air quality monitor, user manual
Manufacturer	Elitech
Model	JP-S1+
Operating Humidity	10-90%
Part Number	Temtop
Temperature Accuracy	0.5
Temperature Reading Accuracy	plus_minus_0_point_5_degrees_celsius
Upper Temperature Range	55 °C

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 85.87

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

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