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Ebyte E32-DTU-100 433MHz 100mW 3km RS232 RS485 LoRa Wireless Data Transceiver

E32-DTU-100 is a high speed wireless data transfer unit (DTU) with RS232/RS485 interface, 8V~28V, operating at 410~441MHz (Default: 433MHz). It features LoRa spread spectrum. Transparent transmission is available.
This DTU adopts LORA spread spectrum technology, which means the transmitting distance is much longer than before. The advantages include more concentrated power density and better anti-interference performance. It features FEC (Forward Error Correction) algorithm, which ensures its high coding efficiency & good correction performance. In the case of sudden interference, it can correct the interfered data packets proactively, so that the reliability & transmission range are improved correspondingly. But without FEC, those data packets can only be dropped.
It has the function of data encryption & compression. The data transmitted over the air features randomness. And with the rigorous encryption & decryption, data interception becomes pointless. The function of data compression can decrease the transmission time & probability of being interference, while improving the reliability & transmission efficiency.




No. | Item | Parameter details | Description |
1 | Size | 82 * 62 *25mm | Without antenna |
2 | Weight | 133g | Without antenna |
3 | Frequency band | Default: 433MHz | 410~441MHz channel:32, 433±5MHz (recommended ) |
4 | Housing | Aluminum alloy | Black |
5 | Connector | RS485:1 * 4 * 3.81mm RS232:DB9 | Screwing Standard DB9, hole |
6 | Supply voltage | 8 ~ 28V DC | Note: the voltage higher than 28V is forbidden |
7 | Communication level | RS232/RS485 | Available for RS232 and RS485 |
8 | Operation range | 3000m | Test condition: clear and open area & 20dBm, antenna gain: 5dBi,height:> 2m,air data rate: 2.4kbps |
9 | Transmitting power | Maximum 20dBm | About 100mW, can be configured to 20, 17, 14, 10dBm |
10 | Receiving sensitivity | -130dBm/2.4kbps | Sensitivity has nothing to do with baud rate and timing |
11 | Air data rate | 2.4kbps | Can be configured to 0.3, 1.2, 2.4, 4.8, 9.6, 19.2kbps |
12 | Standby current | 14mA | Mode 3(power supply: 12V) |
13 | Transmitting current | 126mA/20dBm | ≥300mA (recommended) |
14 | Receiving current | 28mA | 12V |
15 | Communication interface | RS232/RS485 | 8N1, 8E1, 8O1 Eight kinds of UART baud Rate, from 1200 to 115200 bps (default: 9600) |
16 | Driving mode | RS232/RS485 | Can be configured to push-pull/high pull, open-drain |
17 | Transmitting length | 512 bytes buffer | 58 bytes per package |
18 | Receiving length | 512 bytes buffer | 58 bytes per package |
19 | Address | 65536 configurable addresses | Easy for network, broadcast and fixed transmission |
20 | RSSI support | Built-in intelligent processing | - |
21 | Antenna type | SMA-K | External thread hole |
22 | Operating temperature | -40 ~ +85℃ | Industrial grade |
23 | Operating humidity | 10% ~ 90% | Relative humidity, no condensation |
24 | Storage temperature | -40 ~ +125℃ | Industrial grade |


Chengdu Ebyte Electronic Technology Co., Ltd. a high-tech enterprise integrating R&D, production and sales with a complete industrial chain. Products cover LoRa, WiFi, Bletooth, ZigBee, 4G/5G/NB/GPRS wireless modules and devices, wireless sensing devices, etc. The company has hundreds of inventions and utility patents with products passing authoritative certifications such as RoHS SRRC, FCC, CE, MIC, KC and NCC and exported to more than 50 countries and regions worldwide, enjoying a wide reputation.



1. Delivery will be arranged by DHL/UPS/Fedex/TNT/EMS,it will take 3-7 working days to arrive in most countries.
Q1: Are you a manufacturer or a trading company?
A1: We are a manufacturer.Ebyte E32-DTU-100 433MHz 100mW 3km RS232 RS485 LoRa Wireless Data Transceiver lora long range
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