This product is divided into indoor unit and outdoor unit. The indoor unit can be placed on the desktop, bedside and other places, and the outdoor unit can be placed at the garden, garage, orchard and other places. Indoor and outdoor temperature and humidity are clear, so as to creates a nice indoor and outdoor environment. Features: 5.3in large LCD display, easy reading of the informations. Colour screen digital sensor, more accurate temperature and humidity detect. Automatically obtain weather data and synchronize. APP intelligent control, easy operation, multi-functions, APP sharing. Air pressure/wind speed/temperature and humidity alarm function setting reminder. You can view the historical data trend record of temperature and humidity. It can support 3 sub-machines, and take the temperature and humidity of different positions at the same time. Display content, you can DIY according to your preferences. Diversified installation methods make installation easier. It can be hung on the wall or placed on the desktop. Specifications: Type: set A, set B (optional) Color: white+black Material: ABS+PC Input: 100-240V, 50/60Hz Output: 5V, 2A Temperature Display Unit: / Humidity Display Unit: RH% Temperature Range & Accuracy: -20 to 60, 0.5 Humidity Range & Accuracy: 0%~99%, 2%RH Operating Temperature: -20 to 60 Sensor Battery: 3V 1000mA Main Machine Size: 160 * 23.5mm / 6.30 * 0.93in Sensor Size: 45 * 15mm / 1.77 * 0.59in Package Size: 192 * 185 * 64mm / 7.56 * 7.28 * 2.52in Package Weight: Set A: 500g / 1.1lb Set B: 565g / 1.2lb Packing List: Set A: 1 * Main Machine 1 * Sensor 1 * USB Cable Set B: 1 * Main Machine 3 * Sensor 1 * USB Cable