Features: The SOLG 30E Temperature Humidity Data Logger features external probe for real time monitoring in critical environments, combining high accuracy sensors with programmable alarms for stable climates control management. Equipped with double LCD screens and 32GB internal storage, this portable device displays real time readings while archiving historical data for comprehensive environmental analysis. Ideal for warehouse supervisors, laboratory technicians, and logistics coordinators requiring accurate environmental tracking in regulated storage/transportation scenarios. Perfect for monitoring storage units, food transportation vehicles, and industrial laboratories where consistent temperature/humidity levels are task critical. Its USB compatible data export systems simplifies compliance reporting, while the compact IP54 rate housing ensures durability across multiple worksites and mobile applications. Specifications: Component : ABS. Size: about 100x40x10mm/4x1.6x0.4inch Type: Repeatable use (USB 2.0). Measurement ranges : -30°C~70°C. Accuracy: ±0.5°C. sensors: . Storage: 65,000 data points. Battery life: 12 months. Battery: A 3.0V battery (replaceable) Package Includes: 1xEnvironmental Monitor note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.