Package includes: you will receive 3 pieces digital thermometer hygrometers with accurate reading, you can use for your multiple Suitable occasions: the hygrometer thermometer gauge with probe design can accurate reading, whcih is proper for incubators, greenhouse, reptile tank, guitar case, cigar humidors , restaurant and office, you can monitor temperature and humidity Measuring range: the digital thermometer hygrometer shows in Fahrenheit, temperature measuring is between -58Fahrenheit - 158 Fahrenheit; Humidity measuring range is 10% - 99%RH; Temperature measurement accuracy is 2 Fahrenheit; Humidity measurement accuracy is 5%RH; Fast response with 10 seconds Easy to read and use: with LCD display, the digit is easy to read, you can read even in the distance; The temperature humidity meter gauge requires 2 pieces LR44 button batteries (included), after you install batteries, just put the sensor probe on the place you to measure, note that the sensor probe is non-waterproof, 't use it as a aquarium thermometer Quality material: the digital thermometer hygrometer is made of quality ABS material, durable and lightweight, the LCD display screen is easy to read; Besides, the stainless steel probe makes the reading more accurate Colour:black Material:ABS Package Contents: 3 x Hygrometer Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.