Product review (3 stars): Sensor is NOT detachable as Extech specifications state
Product description on Extech website states, "detachable outdoor sensor with 9.75ft (3m) cable" . The sensor is built in and not detachable. I confirmed with Extech support, the description on their site is wrong. If the sensor is damaged you cannot replace it. The instrument does work; temperature and humidity are with the margin of error, but the detachable sensor is an important feature. It is the only part of the instrument exposed to the elements. Fast shipping from Amazon. Extech Instruments 445713-TP Big Digit Indoor/Outdoor Hygro-Thermometer