Thermistor Test Caps +3°C

Ensure your thermistor thermometer remains accurate and audit-ready with the ETI 3 °C Thermistor Test Cap. Designed for use with ETI thermistor instruments such as Therma 20, Therma 22, or equivalent devices, this plug-in test cap offers a fast and reliable calibration check.

Each unit is UKAS-calibrated to 3 °C and provides a guaranteed measurement uncertainty of ±0.1 °C. Simply insert the cap into the thermometer’s thermistor connector—no additional equipment needed—and confirm that the display matches the certified temperature value. This test confirms your device is reading within specification.

The caps are custom-calibrated at the time of order, delivered within 10–14 working days, and include a full UKAS calibration certificate along with a two‑year manufacturer’s guarantee.

Key Features:

• UKAS Certified to 3 °C — Provides traceable calibration with ±0.1 °C uncertainty. 

• Instant Plug‑and‑Check Use — No external tools required; fits directly into the thermometer connector. 

• Fast Verification — Instant reading confirms the instrument’s accuracy.

• Compatible with Therma 20 / Therma 22 & Equivalents — Ideal for ETI thermistor-based devices.