I need to know if this unit includes a calibration certificate?

I did not receive a certificate with my Used - Very Good unit purchased on Nov 13 '19 from Amazon.

can this be used for room temperatures?

it shows the ambient temperature when you turn it on....so if in your pocket it may read higher leave it on a table it will show the room temp when you turn it on.

Does this take the reading at the tip rather than middle of the stem?

It takes the reading at the indentation just a short ways up the tip.

how long is the metal rod part? it looks shorter than the other similar items', from the picture i see.

The metal rod part is 2 3/4”.

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Extech Instruments 39240 Waterproof Thermometer with Stainless Steel Stem

Product ID: 76381981

Details

Age Range (Description)
Adult
Brand
Extech
Colour
Green
Included Components
Complete with
Special Feature
Waterproof

💧Waterproof design for rugged use

🔋Auto power off + data hold

🌡️Wide temp range -40 to 392°F

Description

🌟 Take the Temperature of Success with Extech’s Waterproof Precision!

ENERGY EFFICIENT - Auto power off extends battery life so you’re always ready to measure
COMPACT PORTABLE - Slim 2.75-inch stem fits easily in your toolkit or pocket
SMART MEMORY RECALL - Instant access to max/min temperature history for informed decisions
BUILT TO BRAVE THE ELEMENTS - Waterproof stainless steel stem withstands outdoor and wet environments
PRECISION AT YOUR FINGERTIPS - ±2°F/1°C accuracy ensures reliable readings every time

The Extech 39240 is a rugged, waterproof digital thermometer featuring a 2.75-inch stainless steel stem, capable of measuring temperatures from -40 to 392°F (-40 to 200°C) with ±2°F/1°C accuracy. It includes max/min recall, data hold, and auto power off functions, powered by an included LR44 battery, making it ideal for professional outdoor and indoor temperature monitoring.

Specifications

ASIN	B0012W0FJ6
Age Range Description	Adult
Best Sellers Rank	#269,940 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #231 in Lab Digital Thermometers
Brand Name	Extech
Colour	Green
Customer Reviews	4.5 4.5 out of 5 stars (168)
Display Type	Digital
Global Trade Identification Number	00793950392409
Immersion Depth	2.75 Inches
Included Components	Complete with one LR44 button
Indoor Outdoor Usage	Outdoor
Item Weight	0.05 Kilograms
Manufacturer	Extech Instruments
Model Name	39240
Model Number	39240
Number of Batteries	1 LR44 batteries required.
Outer Material Type	Stainless Steel
Part Number	39240
Power Source Type	Battery Powered
Product Care Instructions	Wipe Clean
Reusability	Rechargeable
Special Features	Waterproof
Specification Met	CE
Style Name	Digital
UPC	798256173493 767654496404 793950392409
Upper Temperature Rating	200 Degrees Celsius

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TrustScore 4.5 | 7,300+ reviews

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