Features Single-use Data Logger:The temperature and humidity logger adopts light and temperature and humidity sensor with higher accuracy. High Recording Capacity:Up to 10,000 temperature points and 10,000 humidity points. Powerful LED Indication: This USB temperature data logger can provides all key information for recordings incl. alarm status, temperatures statistics (in ℃/℉) and etc. Plug and Read: No cable or reader required, the USB connector enables quick connection to PCs to download data. Software-free Online Configuration: Super quick and easy to configure data logger, NO need to install any software. Features: Single-use Data Logger:The temperature and humidity logger  adopts light and temperature and humidity sensor with higher accuracy. High Recording Capacity:Up to 10,000 temperature points and 10,000 humidity points. Powerful LED Indication: This USB temperature data logger can provides all key information for recordings incl. alarm status, temperatures statistics (in ℃/℉) and etc. Plug and Read: No cable or reader required, the USB connector enables quick connection to PCs to download data. Software-free Online Configuration: Super quick and easy to configure data logger, NO need to install any software. Specifications: Condition:100% Brand New Color: As shown in the picture How to use: single use Accuracy: ±0.5°C (-20°C~+40°C); out of range, ±1°C Data capacity: 10000  Alarm temperature range: <2°C or >8°C (<35.6°F or >46.4°F) Delayed record: 30 minutes Working environment temperature: -30 ° C ~ +70 ° C Equipment storage environment: recommended humidity 20 to 60% RH, temperature 10 to 50 °C Package List: 1*Temperature and Humidity Logger Package List