Features 1、[Accurate Monitoring] Our monitor could provide precise real time readings of temperature and humidity with wide ranges, ensuring accuracy for any environment. 2、[Wide Range] This meter could monitor indoor temperatures (‑10℃ to +50℃), outdoor temperatures (‑40℃ to +90℃), and humidity levels (20% to 95% RH), to maintain a comfortable and healthy living or working space. 3、[Easy to Read Display] With clear digital display, this temp humidity gauge allows for effortless monitoring of indoor and outdoor temperature and humidity levels. 4、[Reliable Outdoor Use] Stainless steel outdoor probe can withstand various weather conditions, ideal for reliable outdoor temperature monitoring. 5、[Versatile Usage] Widely suitable for home, dormitory, computer room, warehouse, office, hotel, hospital, planting greenhouse, incubation room, nutrition room, laboratory, air conditioning vehicle, etc. Specification Item Type: Indoor Outdoor Thermometer Hygrometer Material: ABS Battery: LR44 button battery x 1 (shipped without battery) Temperature Range: Indoor: -10℃ to +50℃ (+14℉ to +122℉) Outdoor: -40℃ to +90℃ (-40℉ to +194℉) Humidity Range: 20% to 95%RH Package List 1 x Thermometer Hygrometer 1 x Probe 1 x Instructions