Portable Magnetic Wireless WiFi Temperature Humidity Data Logger for Food Cold Storage

This smart temperature and humidity data logger supports real-time WiFi transmission, enabling remote monitoring via mobile devices or PC without wired connections.

It adopts a compact portable design suitable for refrigerated boxes, cold storage rooms, laboratories, warehouses, and residential environments.

Built-in high-capacity data storage supports up to 65,000 records, ensuring long-term continuous environmental data logging.

The device supports Bluetooth configuration and optional Bluetooth printer connection for easy on-site data printing and parameter setup.

It features a high-precision temperature and humidity sensing unit with stable performance and strong anti-interference capability.

Dual power supply design supports 5V DC external power and built-in rechargeable battery for uninterrupted operation during power outages.

The logger supports automatic data caching when network is disconnected, and uploads stored data once WiFi connection is restored.

Equipped with an LCD display, it provides real-time temperature, humidity, battery level, and system status for convenient on-site monitoring.

Built-in audible alarm function triggers when temperature or humidity exceeds preset thresholds for immediate alert response.

Magnetic installation design allows easy attachment to metal surfaces such as refrigerators and cabinets without additional mounting tools.