Is this sensor waterproof? Would it be suitable for use in a tent camping scenario?

As long as Tempo Disc is placed in a covered area it can be used outside. This version is not waterproof but we do sell another version from our website that is waterproof, this device records temperature only as it is completely sealed.

How long does battery last

Hi Ian, Under normal conditions around 9 months. Please be aware if Tempo Disc is operated in temperatures below zero for prolonged periods this can have an impact on the life of the battery. The back of Tempo Disc can be unscrewed to replace the battery. Blue Maestro team

Does it measure absolute rather than relative humidity?

You can calculate the absolute humidity using the relative humidity and temperature captured by this sensor. You can use the CSV export feature to implement this in a spreadsheet.

What’s the difference between the blue dot and red dot? Similar price (colour aside obviously) thanks

The difference between the two devices is that the BLUE device measures and records temperature, humidity and dew point where as the RED device only measures and records temperature.

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Blue Maestro Disc Mini 3-in-1 Bluetooth Enabled Sensor Data Logger

Product ID: 50132037

Details

Age range (description)
Adult
Brand
Tempo Disc
Colour
Blue
Connectivity technology
Wireless
Display type
Digital
Included components
PCB board coin

💾250 days onboard storage

📡270 ft Bluetooth range

🔋12-month battery life

€ 91.27

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Description

🌡️ Stay ahead of the curve with the Tempo Disc — your invisible climate guardian!

MULTI USER ACCESS - Share live data seamlessly across multiple smartphones—perfect for teams and offices.
MASSIVE DATA STORAGE - Record up to 250 days of environmental data with unlimited phone export—no fees, no accounts.
SET FORGET SIMPLICITY - One-button setup with a year-long battery life keeps you worry-free and always informed.
COMPACT VERSATILE DESIGN - Ultra-small footprint fits anywhere indoors or outdoors without intrusion.
EFFORTLESS REAL TIME MONITORING - Instant temperature & humidity updates with zero Wi-Fi or pairing hassle.

The Blue Maestro Tempo Disc is a compact Bluetooth-enabled thermometer, hygrometer, and dew point sensor with a 270-foot wireless range. It stores up to 250 days of temperature and humidity data onboard, accessible by multiple users simultaneously via smartphone without Wi-Fi or pairing. Featuring a 12-month battery life and effortless setup, it’s designed for professional environments needing reliable, long-term environmental monitoring with simple data export and no subscription fees.

Specifications

ASIN	B01MZYPO48
Age Range Description	Adult
Best Sellers Rank	30,838 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 32 in Lab Digital Thermometers
Brand	Tempo Disc
Colour	Blue
Connectivity Technology	Wireless
Customer Reviews	4.3 4.3 out of 5 stars (523)
Display Type	Digital
Included Components	PCB board, plastics, CR2032 coin cell battery, Quick start guide
Indoor Outdoor Usage	Indoor, Outdoor
Inner Material	Plastic
Item Length	3.3 Centimetres
Item Weight	20 Grams
Manufacturer	Blue Maestro
Manufacturer Part Number	BMTDDUAL
Model Name	Disc Mini 3 in 1
Model Number	Tempo Disc Temperature and Humidity
Number of Batteries	1 Lithium Metal batteries required. (included)
Outer Material	Plastic
Power Source	Battery Powered
Product Care Instructions	Do not use in water
Product Warranty	Your item must be in its original unused condition to be returned, unless there is a manufacturer defect. You must return the item within 30 days of your purchase. If there is a manufacturer defect you must return the item within 365 days of your purchase
Resolution	0.1°C or 0.1°F
Response Time	1 seconds
Reusability	Replaceable Battery
Special Features	• Bluetooth-Enabled Connectivity • 3-in-1 Multi-Sensor • Automatic Dew Point Calculation • Compact, Lightweight Design • On-Device Data Logging It can detect in real-time the temperature and humidity conditions.
Style Name	Round
UPC	784672471305
Unit Count	1 count
Upper Temperature Rating	125 Degrees Celsius

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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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€ 91.27

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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