Temperature and humidity meter alarm A2000 (Professional) A2008 alarm temperature and humidity table (RS485 interface) LED218B big screen temperature and humidity table (professional industrial field) HE710 hygrometer temperature and humidity table (handheld). HE Series LED large screen temperature and humidity Table (professional import sensor) visual distance hygrometer HE LED large screen LED large screen hygrometer series are high precision large screen Shenzhen, China R & D map display temperature and humidity meter, accurate measurement, elegant appearance, widely used in industrial production workshops, museums, the Public Security Bureau and other enterprises. Features: (User Manual Download) (1) Switzerland imported temperature and humidity sensors, high accuracy, by CTI and Shenzhen Institute of Metrology, South China National Metrology Center, Shaanxi Institute of Metrology, Beijing Institute of Metrology and other authorities to monitor. (2) Typical customer: National Museum of China State Grid Corporation of Sanjiu Pharmaceutical (3) Support bias calibration function can be set via the button. (4) stylish and simple, solid structure, the use of the wall, through the national testing authority, to meet national GSP / 高标准 certification requirements. Model HE212A HE218A HE223A large screen hygrometer HE230A HE240A HE250A HE218B hygrometer big screen viewing distance 10 m 20 m 30 m 40 m 50 m 75 m 20 m Dimensions 170 * 120 * 37 mm 395 * 255 * 50 mm 395 * 255 * 50 mm 395 * 255 * 50 mm 601 * 383 * 50 mm 601 * 383 * 50 mm 601 * 383 * 50 mm LED module size 1.2 inches 1.8 inches 2.3 inches 3.0 inches 4.0 inches 5.0 inches 1.8 inches instrument parameter sensor : external sensor, cable length 3 m or 5 m, can be customized according to the need to extend. Accuracy: temperature (± 0.5 ℃) / humidity (± 3% RH) Measurement range (external sensor): - 40 ℃ - 85 ℃ / 0 - 100% RH button: total five buttons, including switch, adjust the deviation and other functions. Resolution: ± 0.1 ℃ (temperature) / ± 0.1% RH (humidity) sensor: Switzerland original package integrated temperature and humidity sensors Power: 220V AC Installation: wall mount. Use of this product can be widely used in museums, public security bureau interrogation room, home, offices, hotels, restaurants, schools, conference rooms, factories, shopping malls, warehouses, waiting rooms, hospitals, nursery greenhouses, livestock breeding and other indoor environments. Download LED large screen hygrometer User Manual (pdf)