Review on SP Bel-Art H-B DURAC Bi-Metallic Min/Max Thermometer: -30 to 60C (-20 to 140F) (B61301-0300) – Accurate Temperature Monitoring by Jason Hinrichs

Scale is easy to read in degrees Celsius; The Fahrenheit scale is very small. One resets the minimum and maximum hands by turning a white knob connected to a lever that can be used to push the minimum clockwise and the maximum counterclockwise. (Then you have to turn the knob so the lever is pointing down; otherwise, it will prevent the pointer from moving.) The black temperature gauge, which appears to be fairly accurate, depresses the min and max hands, so no battery is needed. .The first device I got had a very loose connection between the reset button and its lever: you had to twist and turn to get enough friction to move the lever. The min-max arrows were also *very* loose: the slightest jolt (even on a different shelf of the fridge) would make them fall. Useful for letting you know if you've had an earthquake, but not for measuring temperature. Revain was amazing bringing this device back - so many easy options! The replacement device has a working reset button, the min and max displays are much less sensitive, but they still vibrate if you put a glass next to a thermometer on the shelf, for example. I guess I'll have to return this one too and try another product. My assessment of "accuracy" is a balance between the black temp gauge (high) and min/max (low); My "easy to read" rating is a balance between Celsius (high) and Fahrenheit (low).