There have been several versions of EasyTemp (EZ-TMP) temperature probes. Here is how you can tell which you have.
The original version…
- Sold between Spring 2005 — April 2020
- Identifying markings
- Product identification flag did not include part order code, model number, or part number.
- Firmware version: 1.53
- Processor: Cypress

First Revision – updated processor…
- Sold between April 2020 — November 2020
- Identifying markings
- Model version, EZT1610R1, on tape near USB port and on product flag.
- Product Flag also include part order code.
- Firmware version: 1.65
- Processor: NXP

Second Revision – updated plastics…
- Sold between November 2020 — Present
- Identifying markings
- Plastics changed to match Go Direct Temp
- Silk screening on sensor all one color (no green Easy)
- Product ID printed on label on back of sensor.
- Product flag has model version an part order code.
- Firmware version: 1.65
- Processor: NXP

Related Information
- My EasyTemp is not working with my TI-84 Plus CE Python Edition calculator, what can I do?
- EasyTemp Troubleshooting and FAQs
- What sensor data-collection app is used with TI-83/84 Plus graphing calculators?
- What sensor data-collection app is used with TI-Nspire technology?
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