Thermometers / Hygroscopes
Thermometers and hygroscopes JVD are made in two lines: mechanic and electronic. Mechanic exceed by their simplicity and reliability, electronic have more functions, wire-less sensors, they can show time, date etc. While picking one we need to think about advantages and disadvantages. We don’t have to drill a hole in our window with the wire-less one but when the temperature is bellow 0° C the battery might freeze and without energy it won’t show anything. Wire sensors have up to 3 meters long cables with explorer that is needed to be taken outside, the sensor measures in a large range without a drop-out because it’s placed inside the building.