The document introduces a pocket-sized waterproof thermometer product released by Extech Instruments Corporation in 2008. This thermometer can measure the temperature of frozen solids and liquids, and has features such as maximum/minimum recording, data hold, and auto power off.
The Extech 39240 is a compact, waterproof thermometer designed to measure temperatures in frozen solids and liquids. It features a durable 2.75-inch stainless steel stem and a digital display with 0.1° resolution.
Key operational features include switchable °C/°F ranges covering -40°F to 392°F (-40°C to 200°C), as well as Max/Min recall, data hold, and auto power-off functions. The unit comes complete with an LR44 button battery and a protective cover.
| Stem Material | 2.75" (70mm) Stainless steel stem |
|---|---|
| Temperature Range | -40 to 392°F (-40 to 200°C) |
| Display Resolution | 0.1° resolution |
| Dimensions | 5.9 x 0.8 x 0.7" (150 x 20 x 18mm) |
| Weight | 0.7oz (20g) |
| Included Battery | LR44 button battery |
The thermometer supports switchable ranges from -40 to 392°F (-40 to 200°C).
Yes, the waterproof housing allows the meter to be completely submerged in water.