The wireless thermometer detects temperature every 30 seconds at a range of 32~122 for indoor and -58~158 for outdoor. Shows time, date and week on one screen, with switchable Celsius and Fehrenheit, a perfect temperature gauge for nursery, bedroom, greenhouse, basement, cold room, etc. br/> Features: Provides an accurate temperature reading every 30 seconds and shows you the current time and week. Measuring range of 32~122 for indoor and -58~158 for outdoor. The effective range of the remote sensor is within 100 meters/328 feet if there is no obstacle . Alarm clock. Set a particular time to ring and wake you up with temperature display. Unit conversion between Celsius and Fehrenheit is available. Time format can be changed from Hour/Minute / Second to Hour / Minute / Date. Orange backlight. The brightness is adjustable in 4 levels under DC power supply. Designed with a foldable stand, a hanging hole and a magnet on the back, you can place it at will. Note: * Batteries are not included. Features: Material: ABS Color white Inner measuring range: 0~50/32~122 Outdoor measuring range: -50~70 / -58~158 Transmission range: 100 m / 328 ft (without any obstacles) Battery: AAA alkaline battery * 5 pieces (batteries not included) (3 pieces for thermometer, 2 pieces for remote sensor) Item size: 11.8*4*4cm/4.64*1.57*1.57in (remote sensor); 12.8 * 9 * 2.3 cm / 5.03 * 3.54 * 0.9 inch Item Weight: 134g / 4.72 oz (thermometer); 60g / 2.11oz (sensor) Package size: 14.5 * 14.5 * 2cm / 5.7 * 5.7 * 0.78inch Package Weight: 258g / 9.1 oz