So Compact You Can Take It Anywhere
Extech® Temperature and Humidity Pen sensors are built right in so you don’t have to make timeconsuming sensor hookups. Dual LCD gives temperature and humidity (°F and °C simultaneously) while indicating advanced function. Min./max. memory for both temperature and relative humidity. Equipped with built-in self-calibration device that can be used with optional RH calibration bottles. Data hold key freezes current LCD. Comes complete with a pocket clip and 3V lithium battery.