Wetekom Humidity Meter and Thermometer Wetekom EM4811

Humidity gauge, 1st display wood, building materials and earth. Temperature gauge, 2nd display room and surface temperatures (switch from C to F) Have you experienced this : you buy firewood on the assumption that it has been properly stored and is sufficiently dry! But then, in the cosy atmosphere of your living room, it burns badly and spews out white smoke! You dont have to put up with this . You dont need to rely any further on the writing on the package, and you can che (Barcode EAN=4040746011423)