T-Shaped Fahrenheit Thermometer

This Hanna Instruments thermometer measures temperature on a stainless steel stem thermometer with a T handle.

Why it is measured

There is no battery to go flat, no display to fog and nothing to fail in a walk-in. A dial thermometer works the day you need it, years after it was put there, which is why they outlive the digital instruments that replaced them.

Where it is used

• walk-in coolers and freezers
• meat and roasting
• food receiving
• general kitchen use

Reading a temperature correctly

Most wrong temperatures are not the instrument's fault. A probe placed too shallow, read before it settled, or put in the thinnest part of a piece of food gives a confident number that was never true of the product.

Insert to the depth marked, into the thickest part, and wait for the reading to stop moving. Check the instrument against an ice-water slurry periodically — that is a real reference point, and it costs nothing.

Practical note

Calibrate in ice water periodically and adjust the nut under the dial; a dial thermometer drifts silently after being dropped.

Supplied as 2 models.