Digital Humidity & Temperature Monitor

Know when a room is heading for damp before the mould shows up.

Mould grows when indoor humidity sits above about 60–70% for long periods. This little monitor shows the humidity and temperature at a glance, so you know when to open a window, run the extractor or dry the washing somewhere else.

• Shows humidity (10–99% RH) and temperature (-9.9 to 50°C)
• Comfort face: smiles between 40% and 70% humidity, frowns outside it
• Backlit screen with clock
• Stands on a shelf or hangs on a wall
• Power: 1 × AAA battery (not included)

Tip: put one in the bedroom and one in the bathroom. Bedrooms often run damper than people think.