Feature 1The product has a large display screen, which can display realtime temperature and humidity values and other data. 2Highaccuracy temperature and humidity sensor for accurate temperature and humidity measurement. 3It is mostly used in cold storage, breeding incubator, warehouse, laboratory, greenhouse, server, computer room, etc. 4Highquality chips, upgraded configuration, outstanding performance, comprehensive monitoring of various environments. 5WiFi signal transmission, mobile phone realtime monitoring, easy operation, complete functions.Item Type: Temperature Humidity SensorMaterial: ABSColor: As shown in the pictureSize: Approx.122x102x36mm / 4.8x4.0x1.4inWeight: Approx.336g/11.9ozApplication: Comprehensive monitoring of various environments, mostly used in cold storage/breeding hatching/warehouse/lab greenhouse, server room, etc.Measuring Range: -40-80 ()DC Power Supply: DC 10-30VRecord Points Number: 65535Device Storage Interval: 1-1999 minutes can be set, the default is 30 minutesHow to UseWiring, start-up, measurement, monitoring, data storage (refer to the manual for details) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Recorder1 x Configuration Line1 x Instruction Manual1 x Bag of Installation Accessories(8pcs)Note1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.