E95-DTU(433L30-485) is a wireless data transmission DTU that uses military-grade LoRa modulation technology. It has a variety of transmission methods. It works at (410/441M) frequency band (default 433MHz). The DTU provides a transparent RS485 interface, plastic shell. rail type installation structure, support 8~28V voltage input.
[Frequency]：410～441MHz
[Power]：30 dBm
[Distance]：8km
[Size]：92*67*30mm
[Interface]：RS485
[Weight]：95±5g
| Mode |
Working Frequency |
Transmit Power |
Distance | Specifications | Recommended Application Scenarios |
| Hz | dbm | km | |||
| E95-DTU(433L30-485) | 410/441M |
30 | 8 | Lora spread spectrum anti-interfernce |
Suitable for small data volume and long-distance application environment |
| No. | Term | Specification | Description |
| 1 | Size | 92*67*30 mm | Review installation dimensions for details |
| 2 | Weight | 95g | Weight tolerance 5g |
| 3 | Working Temperature | -40℃～+85℃ | Meet the needs of industrial use |
| 4 |
Antenna impedance |
50Ω |
Standard 50Ω characteristic impedance |
| 5 | Voltage Range | 8～28V DC | Recommend to use 12V or 24V |
| 6 | Interface | RS485 | 3.81 terminal block |
| 7 | Baud Rate | Default 9600 | Baud rate range 1200～115200 |
| 8 | Address Code | Default 0 | A total of 65536 address codes can be set |
| Model |
Defaul tFrequency |
Frequenc yRange |
Channel Spacing |
Number of Channels |
| Hz | Hz | Hz | ||
| E95-DTU(433L30-485) | 433M | 410～441M |
1M | 32，Half Duplex |
| Model | Transmitting Current mA | Waiting Current mA | ||
| 12V | 24V | 12V | 24V | |
| E95-DTU(433L30-485) | 135 | 20 | 12 | 12 |
Practical Application Scenarios
1. Large-Scale Agricultural Irrigation Control
In smart farming, the E95-DTU allows for long-range, wireless control of irrigation valves spread across thousands of acres. By transmitting commands from a central PLC over RS485 to the DTU, it ensures reliable activation of pumps even in fields where traditional cellular or Wi-Fi coverage is non-existent, reducing manual labor and water waste.
2. Remote Power Grid Monitoring
Grid operators utilize these DTUs to collect data from remote line fault indicators and environmental sensors. The 30dBm transmission power enables the units to overcome significant terrain obstructions, ensuring real-time reporting of grid status to central substations without the cost and complexity of extensive hardwired infrastructure.
3. Industrial Tank Farm Level Management
For chemical or fuel storage facilities, this module bridges the gap between field-level tank sensors and the facility's SCADA system. Its rail-mounted, robust plastic shell design is perfectly suited for harsh industrial control cabinets, facilitating stable, transparent serial data communication over high-interference sites.
FAQ Section
1. Does the transparent RS485 interface require custom protocol programming?
No, the device supports transparent transmission mode, meaning it treats the wireless link like a serial cable. As long as your terminal devices (such as PLCs or sensors) communicate via standard Modbus or serial protocols, the DTU will relay the data packets without needing protocol-level modifications.
2. Can the unit be installed outdoors without an enclosure?
While the DTU features a robust plastic shell for rail installation, it is designed for indoor control cabinet environments. For outdoor deployment, it must be installed within an IP-rated weatherproof enclosure to protect against moisture, direct sunlight, and extreme weather conditions.
3. How do I configure the operating frequency or parameters?
The device supports flexible configuration via Ebyte's specialized software tools. By connecting the DTU to a PC, users can easily adjust parameters such as the operating frequency (410-441MHz), transmission rate, and address settings to match the specific requirements of their local regulatory environment.
