Features: Fast response and high accuracy, providing updated and accurate readings. With large HTN color LCD display for easy reading the data, and it features backlight and touchscreen, turn the backlight on/off, making it easy for reading in the dark. (Auto-off after 30s). Support / switchable, checking temperature/humidity in the past or last 24 hours, and recording/clearing the maximum & minimum temperature and humidity. Multiple mounting modes. This thermometer features tabletop, wall-mountable and magnet-mountable design, convenient mounting feature for every type of room. Comes with remote sensor for wirelessly tracking indoor or outdoor temperatures, and it can transmit the readings to the connected digital thermometer & hygrometer by using a 433 MHz wire-less signal. Up to 100M/330FT transmission distance. The remote sensor is equipped with a hanging hole for easy placement, which can be hung on the wall or tree, or placed in a baby's room, bedroom, warehouse or greenhouse. Specifications: Material: ABS Color: White+Black Indoor Temperature Range: -4~158-20~70 Outdoor Temperature Range: -40~158-40~70 Temperature Accuracy: 1 Temperature Resolution: 0.1/0.1 Humidity Range: 20~95 Humidity Accuracy: 5% Humidity Resolution: 1% Transmission Distance(Remote Sensor): 100M/330FT Water-resistant Level(Remote Sensor): IP44 Time Display: yes Alarm Clock: yes Powered By: 2 * AAA Batterys (Not Included) Package Size: 155 * 135 * 33mm Package Weight: 245g Package List: 1 * Digital Thermometer & Hygrometer 1 * Remote Sensor 1 * User Manual