Is your room too hot or too cold or check your heating costs. These safety thermometer cards ensure that a room is not dangerously too hot or uncomfortably too cold. Large visible display 9-27°C scale (70x10mm). Laminated Card Dimensions 105mm x 148mm. Approved by the Energy Saving Trust, with their top 10 tips to save energy and your carbon footprint on the rear of the card. Most adults find it difficult to judge room temperature and the use of a simple room thermometer in rooms where you or your baby plays and sleeps is important. Place this room thermometer on the wall or where you need to check the temperature and you will always know. If green is not showing the reading will be between tan and blue. Store out of reach of children, in a cool dry place away from sunlight and direct heat sources. The manufacturer holds the ISO world standard certificate for their thermometers.