What's the difference between the extech ea11a and the extech tm100?

Hello Daniel,The EA11a can accommodate Type K probes, while the TM100 can accommodate Type J and K. As well, the TM100 has a wider temperature range and tighter accuracy spec's. Data sheets for both are available here:http://www.extech.com/resources/EA11A.pdfhttp://www.extech.com/resources/TM100data.pdfBest Regards

can it measure water temperature?

Yes, you can measure the temperature of anything with it, just need the appropriate probe for what and how you're measuring. There are hundreds of different probe types available that will connect to this unit.

I am having issues where the sdl200 will "freeze" after a couple hours of data logging. it will start working again if i stop the logging. any fix?

The manufacturer answered that you can visit their website and find Tab "Support" -> "Service & Support" -> "Technical Support" and there you can find the number of Technical Support and ask them questions about your item. Thanks

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Description

🌟 Measure Twice, Impress Once — The Ultimate Dual Input Thermometer for Pros

COMPACT POWERHOUSE - Lightweight handheld design with protective holster means you’re ready to measure on the go—field techs, this is your new best friend.
DATA AT YOUR FINGERTIPS - Manually store and recall up to 150 readings with Max/Min/Hold functions—never miss a key measurement again.
PRECISION MEETS VERSATILITY - Dual Type K thermocouple inputs let you track two critical temps at once—perfect for HVAC pros and lab experts.
SEE CLEARLY WORK EFFICIENTLY - Large, high-contrast backlit LCD ensures you get accurate readings even in dim or challenging lighting conditions.
EXTREME RANGE EXTREME CONFIDENCE - From -200°F to 1999°F (-200°C to 1360°C), handle any environment from freezing cold to scorching heat without breaking a sweat.

The Extech EA11A EasyView Digital Thermometer is a compact, handheld device featuring dual Type K thermocouple inputs with an ultra-wide temperature range from -200 to 1999°F (-200 to 1360°C). It offers advanced data management with storage for up to 150 readings and Max/Min/Hold functions, all displayed on a large, backlit LCD for easy reading in any environment. Powered by included AAA batteries and protected by a durable holster, it’s engineered for professionals demanding precision and portability in HVAC, food safety, labs, and industrial settings.

Specifications

Brand	Extech
Special Feature	Alarm
Color	EA11A
Age Range (Description)	Adult
Included Components	Unit^Instruction Guide
Outer Material	Plastic
Specification Met	CE
Display Type	LCD
Product Care Instructions	Wipe Clean
Unit Count	1.0 Count
Power Source	Battery Powered
Model Name	Extech EA11A Easy View Type K Single Input Thermometer
Number of Batteries	6 AAA batteries required. (included)
Upper Temperature Rating	2E+2 Degrees Fahrenheit
Response Time	0.5 seconds
Reusability	Reusable
Style	EA11A
Indoor/Outdoor Usage	Outdoor
UPC	793950412114
Global Trade Identification Number	00793950412114
Manufacturer	Extech
Part Number	EA11A
Item Weight	10.6 ounces
Product Dimensions	2.8 x 1.3 x 5.9 inches
Item model number	EA11A
Batteries	6 AAA batteries required. (included)
Is Discontinued By Manufacturer	No
Pattern	Thermometer
Item Package Quantity	1
Number Of Pieces	1
Special Features	Alarm
Batteries Included?	Yes
Batteries Required?	No
Battery Cell Type	Alkaline
Warranty Description	1 year

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