Voltcraft MS-10 Digital Thermo-Hygrometer

Too high a humidity level in homes can cause not only millions worth of damage but is also unhealthy. In addition, the damage looks unsightly. Most people think that the dampness comes from outside, but that is often not true. In reality, moisture is caused inside the house by evaporation in the kitchen and bathroom. The use of high heat-retention building materials greatly reduces air circulation through walls, which can only be corrected by positive ventilation. It is therefore important to check the indoor climate in order to ensure a healthy living environment. The MS-10 indicates whether the indoor environment is too dry or too damp, and through targeted airing or heating you are able to arrive at the right living environment.

Price: 29.99 from Conrad Electronic