The 39240 from Extech Instruments is a waterproof stem thermometer. It is a pocket thermometer with stainless steel stem. This pocket sized stem thermometer with digital display features 0.1° resolution and min/max recording. It measures temperature in frozen solids and liquids using the 2.75inch (70mm) stainless steel stem. The thermometer features MAX/MIN recall of high and low temperatures as well as data hold and auto power off features. The dimension of display is 109mm x 99mm x 20mm (4.3inch x 3.9inch x 0.8inch).
2.75" (70mm) stainless steel stem
Temperature measuring range from -40°C to +200°C
±2°F/1°C accuracy and 0.1°/1°F resolution
Waterproof housing allows meter to be completely submerged in water
Length: 150mm
Weight: 20g