The temperature and humidity meter is a recording instrument developed by our company with low power consumption, large screen wide viewing angle LCD display and large capacity recording. The use of imported sensor probes guarantees excellent measurement performance. The detachable and rechargeable 18650 large-capacity lithium battery can be used for one year and can record the temperature and humidity data in real time. The recording interval can be arbitrarily set by software from 5s to 24 hours. Up to 1 million sets of data can be stored. USB communication interface is convenient to connect with the computer to view and export historical data. Automatically generate excel curve pdf file. Support online viewing of alarm records History Maximum, minimum, and average values of the day Record status display Charging indication Temperature and humidity upper and lower limit alarm sound and light indication Battery level display, etc.Features:Reliable performance, power loss will not lose data.Password protection to prevent misuse by non-workers.Celsius and Fahrenheit can be switched and used worldwide.With its own clock function, the year, month, day and hour can be displayed.Can be wall mounted, ceiling, cabinet, desktop and other installation methods.Specifications:Condition:100% NewMaterial: ABSColor: As shown in the pictureSize: Approx.120*114*33mm/4.7*4.5*1.3inSensor external type: Probe line is 1 meterDevice power supply: External DC5V power supply or built-in battery power supplyMeasuring range: Temperature: -20--+60 C; Humidity: 0-99.9% RHMeasurement accuracy: Temperature: 0.3 C (25 C) Resolution: 0.1 C; Humidity: 3% RH (5 to 95% RH, 25 C) Resolution: 0.1RH%Output interface: usb (RS485 RS232 output can be customized)Measurement update time: 5s-180s can be setRecording interval: 5s-24 hours can be setStorage capacity: 4 million groupsEffective working area: 10~20m2/setApplication: This thermometer and hygrometer is widely used in all aspects of family housing, machine room, workshop, warehouse, drug store, laboratory, library, museum, office, logistics cold chain, etc., used to monitor and record the temperature and humidity of the environment.Package List:1*Host1*Instruction Manual1*Usb Data Cable1*DC5V Data CableNote:1. It is forbidden to let the recorder work in steam, water mist, water curtain or condensation environment for a long time.2. In high dust or other polluted environment, the temperature and humidity meter must be cleaned regularly.3. The illustrations used in this manual are for explaining the operation method of the product. When there is a small difference between the actual object and the illustration, please refer to the actual product.