
A versatile 4G-enabled data logger for remote environmental and weather monitoring applications.
| Datasheet |
Product Description
The HD33MT.4 Data Logger is a flexible solution for remote environmental monitoring, supporting a wide range of sensors including temperature, humidity, wind, rainfall, and solar radiation.
Equipped with 4G connectivity, it enables real-time data transmission via email, FTP, or cloud platforms, eliminating the need for manual data retrieval. Its multi-interface design supports analog, Modbus RS485, and SDI-12 sensors, making it suitable for integration into weather stations and industrial monitoring systems.
Designed for remote and off-grid use, the HD33MT.4 offers low power consumption, optional battery backup, and solar power compatibility. Its rugged IP65 enclosure ensures reliable operation in harsh outdoor environments.
Key Features:
- 4G/3G/GSM connectivity for real-time remote data transmission
- Supports multiple sensors: analog, RS485 Modbus, and SDI-12
- 4 configurable analog inputs + 2 pulse/counting inputs (e.g. rain gauge, anemometer)
- Flexible data transmission via email, FTP, HTTP/cloud
- Remote configuration and control via SMS or TCP/IP
- Built-in alarm functions with SMS/email notifications
- Low power consumption with solar power compatibility
- Optional internal battery backup (12 V / 3.4 Ah)
- Rugged IP65 housing for outdoor environments
- Compatible with HD35AP-S software for configuration and data management
Shown below are some installations of HD33MT.4:





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Additional information
| Power supply | Optional 3.4 Ah Lead Acid battery (charged by a solar panel or 18-30 VDC) |
| Input | 4 analog input channels, 2 contact input channels, MODBUS-RTU and SDI-12 |



