Extech TM20 Temperature Indicator - Digital Thermometer

Yes, the TM20 is designed to measure the temperature of liquids, pastes, and semi-solid materials due to its waterproof stainless steel probe.

The TM20 can measure temperatures from -40 °C to 70 °C (-40 °F to 158 °F).

The TM20 is powered by a single CR2032 3V coin cell battery, which is included.

Yes, the TM20 features adjustable high and low alarm levels that can be set according to your specific needs.

It can be placed on a table using its stand, mounted on a wall, or attached to metal surfaces using its magnetic back.

Yes, it has a built-in memory function to store and display the minimum and maximum temperature values recorded.

The accuracy of the TM20 is ±1 °C.

Refer to the product manual for specific instructions on resetting the min/max memory. Typically, this involves pressing and holding a dedicated button.

Ensure the CR2032 battery is correctly installed with proper polarity. Check if the battery is depleted and replace it if necessary.

Verify the probe is positioned correctly and making good contact with the substance being measured. Ensure the operating temperature range is not exceeded. Clean the probe if it appears dirty.

Confirm that the alarm thresholds have been set correctly and that the temperature is actually exceeding these set points. Check if the alarm function is enabled.

Wipe the display gently with a soft, damp cloth. If the issue persists, the battery may be low, or the unit may have been exposed to extreme conditions. Replace the battery.