1、Easy to read: With thin transparent dial, easy-to-read scale. Thanks to the large screen, it is easy to read from a distance 2、No battery required: The hygrometer has a longer service life and no battery is required 3、Two measurements: Measure the temperature and humidity twice, pay attention to your four seasons, and be your intimate housekeeper 4、Note: Avoid strong vibration and shock. Do not disassemble by yourself 5、Portable enough: Small size, durable and portable enough to save space and carry around Item Type: Temperature Humidity Meter Material: Aluminum Shell Product Size: Approx. 5.7 x 5.7 x 1.2 cm 2.2 x 2.2 x 0.5 in Measurable: Temperature and Humidity Color: Green Application: Greenhouse, Warehouse, Home and Office Without Battery Installation Weight: Approx. 17g 0.6oz 1 x Temperature Humidity MeterSatisfaction Guarantee: Customers are our top priority. If you find any problem with the product, please contact the seller immediately. We strive to provide satisfactory customer service.