1.Simultaneously measure and automatically record temperature and humidity.Wide measuring range: 0~100%RH, -40~105Celsius/-40~221Fahrenheit with Celsius/Fahrenheit temperature units for selection. 2.Can generate PDF and data export format directly. With a USB interface, can directly connect with PC. 3.With software DGraph, you can set LED alarm limits, analyze and download the data. 4.With dew point, heat index, Max/Min values, data hold, low battery indicator and backlight functions.When the data exceeds the setting limits, it will give an LED light alarm. 5.Data logging of 80,000 data and download data via software. Recording and sampling interval of 0.5s.Widely used for the temperature measurement of warehouse management, logistics transportation, communication rooms, etc. Descriptions: This intelligent temperature and humidity data logger is provided with a high-accuracy digital humidity & temperature sensor. It's widely used for the temperature measurement of warehouse management, logistics transportation, communication rooms, shopping malls libraries, etc. Specifications: Temperature Unit: Celsius / Fahrenheit Temperature Range: -40~105Celsius / -40~221Fahrenheit Temperature Resolution: 0.1Celsius / 0.1Fahrenheit Temperature Accuracy: ±1Celsius / ±1Fahrenheit Humidity Range: 0~100% Humidity Resolution: 0.1%RH Humidity Accuracy: ±3.0% Heat Index Range: 21.1~54.4Celsius / 70~130Fahrenheit Dew Point Temperature Range: -40~105Celsius / -40~221Fahrenheit Export Format: PDF & Data Storage Capacity: 80,000 Sampling Interval Time: 0.5s Recording Time: 1 second ~ 24 hours(Adjustable) Connect Interface: USB 2.0 Power Supply: 2 x 1.5V AA Battery (Not Included) Operation Temperature: -30~80Celsius (-22~176Fahrenheit) Operation Humidity: 0 to 90%RH Storage Temperature: 0~40Celsius / 32~104Fahrenheit Storage Humidity: 0 to 75%RH Colour:white Material:Plastic + metal Package Contents: 2 x Temperature Humidity Recorder 2 x USB Line 2 x English Manual 2 x CD Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. 1.Simultaneously measure and automatically record temperature and humidity.Wide measuring range: 0~100%RH, -40~105Celsius/-40~221Fahrenheit with Celsius/Fahrenheit temperature units for selection. 2.Can generate PDF and data export format directly. With a USB interface, can directly connect with PC. 3.With software DGraph, you can set LED alarm limits, analyze and download the data. 4.With dew point, heat index, Max/Min values, data hold, low battery indicator and backlight functions.When the data exceeds the setting limits, it will give an LED light alarm. 5.Data logging of 80,000 data and download data via software. Recording and sampling interval of 0.5s.Widely used for the temperature measurement of warehouse management, logistics transportation, communication rooms, etc. 1.Simultaneously measure and automatically record temperature and humidity.Wide measuring range: 0~100%RH, -40~105Celsius/-40~221Fahrenheit with Celsius/Fahrenheit temperature units for selection. 2.Can generate PDF and data export format directly. With a USB interface, can directly connect with PC.