Does it display t1 - t2 in f also, or only c

It displays in both Celsius and Fahrenheit. It's a pretty good thermometer, I've had it a while and use it for chemistry applications so it gets exposed to extreme pH ranges and temperature. The thermistor wire has only just now worn out, which happens with all thermistors; nothing wrong with the meter though, great quality for such a low price.

I'm annealing brass, how fast does this read temperature? Response time?

It is virtually instant. The mass of the tip of the thermocouple is so small that it responds to changes in heat very quickly.

When recording maximum temperature what is the sample rate? How many times does it sample per second?

I'm not sure about maximum temperature, but when I used it to check the AC air outlet from the ceiling diffuser after cleaning the coil, the display screen went from 84F down to 62F in a jiffy. I'm sure you will like it.

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KAMTOP Dual Channel Thermocouple Thermometer, K-Type Temperature Meter

Product ID: 81153304

Details

Age Range (Description)
Adult
Brand
Kamtop
Color
Red and black
Display Type
Digital
Included Components
1×Temperature
Outer Material
Metal

💡Backlit LCD with MAX/MIN/AVG modes

🔧Supports 7 thermocouple types

🌡️Dual-channel simultaneous temp read

S$39

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Description

🌟 Stay ahead of the heat with precision that professionals trust!

READY OUT OF THE BOX - Includes 2 K-type probes, batteries, and manual—perfect for pros and DIYers who demand accuracy now.
CRYSTAL CLEAR READINGS ANYTIME - Backlit LCD ensures visibility in dim or busy environments, with MAX, MIN, AVG, and Hold functions for smarter tracking.
UNIVERSAL THERMOCOUPLE COMPATIBILITY - Seamlessly switch between K, J, T, E, R, S, and N types for any industrial or lab application.
DOUBLE THE DATA DOUBLE THE PRECISION - Measure two temps at once with T1/T2 or compare differences instantly with T1-T2 mode.
WIDE TEMPERATURE RANGE FOR EVERY TASK - From -328°F to 2501°F, handle everything from delicate liquids to extreme heat with confidence.

The Kamtop Dual Channel Digital Thermocouple Thermometer is a versatile, professional-grade temperature meter featuring dual-channel simultaneous measurement, compatibility with seven thermocouple types, and a backlit LCD with advanced tracking modes. It covers an extensive temperature range up to 2501°F, making it ideal for HVAC, lab, industrial, and culinary applications. Ready to use with included probes and batteries, it delivers reliable, accurate readings for professionals and enthusiasts alike.

Specifications

ASIN	B07DLW3MNV
Additional Features	Backlit, High Accuracy
Age Range (Description)	Adult
Age Range Description	Adult
Best Sellers Rank	#163,530 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #58 in Lab Digital Thermometers
Brand	Kamtop
Brand Name	Kamtop
Color	Red and black
Customer Reviews	4.1 out of 5 stars 448 Reviews
Display Type	Digital
Included Components	1×Temperature Meter, 2×K-type Thermocouple, 3×Battery, 1×English User Manual
Indoor Outdoor Usage	Indoor
Item Length	6 inches
Manufacturer	Kamtop
Model	TL253
Model Name	Digital Dual Channel Thermometer
Number of Batteries	3 AAA batteries required.
Outer Material	Metal
Part Number	8541957453
Power Source	Battery Powered
Product Care Instructions	Wipe Clean
Resolution	0.1 degrees_fahrenheit, 1 degrees_fahrenheit
Response Time	1 minutes
Reusability	Single Use
Special Feature	Backlit, High Accuracy
Style Name	Contemporary
Unit Count	1 Count
Upper Temperature Range	2501 °F

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