1、The product has a large display screen, which can display real‑time temperature and humidity values and other data. 2、High‑accuracy temperature and humidity sensor for accurate temperature and humidity measurement. 3、It is mostly used in cold storage, breeding incubator, warehouse, laboratory, greenhouse, server, computer room, etc. 4、High‑quality chips, upgraded configuration, outstanding performance, comprehensive monitoring of various environments. 5、WiFi signal transmission, mobile phone real‑time monitoring, easy operation, complete functions. Item Type: Temperature Humidity Sensor Material: ABS Color: As shown in the picture Size: Approx.122x102x36mm / 4.8x4.0x1.4in Weight: Approx.336g/11.9oz Application: 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 10-30V Record Points Number: 65535 Device Storage Interval: 1-1999 minutes can be set, the default is 30 minutes How to Use Wiring, start-up, measurement, monitoring, data storage (refer to the manual for details) 1 x Recorder 1 x Configuration Line 1 x Instruction Manual 1 x Bag of Installation Accessories(8pcs)