E32-DTU (433L20) New 433Mhz SX1278 433MHz radio telemetry wireless transceiver lora module modem
[Frequency]：410~441MHz
[Power]：20dBm
[Distance]：3km
[Interface]：RS232/RS485
[Weight]：127±5g
[Introduction]：E32-DTU (433L20) is a wireless data transceiver of 433M with standard RS232/RS485 connectors. They are half-duplex. TX & RX modems with LoRa technology and transparent transmission mode. Voltage supply ranges from 8V to 28V, Working frequency
| RF Parameter | Value | Remark |
|---|---|---|
| Working frequency | 410~441 MHz | Default: 433MHz |
| Transmitting power | 20 dBm | About 100mW |
| Receiving sensitivity | -138 dBm | Air data rate: 2.4kbps |
| Air data rate | 0.3k~19.2kbps | Default: 2.4kbps |
| Test distance | 3 km | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m,air data rate: 2.4kbps |
| Hardware Parameter | Value | Remark |
|---|---|---|
| Size | 82 * 62 * 25 mm | |
| Antenna type | SMA-K | |
| Communication interface | RS232 / RS485 | Baud rate: 1200~115200, default: 9600 |
| Package | DB-9 / Screwing | Standard DB9 Hole/3.81 connecting terminal |
| Buffer | 512 bytes buffer | Automatically sub-packaging with 58 bytes per package |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
|---|---|---|---|---|---|
| Power supply | 10 | 12 | 28 | V | |
| Transmitting current | 120 | 134 | 147 | mA | 20dBm（100mW） |
| stand-by current | 25 | 28 | 31 | mA | |
| Operating temperature | -40 | 20 | +85 | ℃ | |
| Operating humidity | 10 | 60 | 90 | % | |
| Storage temperature | -40 | 20 | +125 | ℃ | |