433M DIP wireless serial port module (UART) with AXSEM AX5243 RF chip
[Frequency]：425~450.5MHz
[Transmit power]：30dBm
[Communication distance]：6km
[Interface]：UART
[Introduction]：E31-433T30D is a 433M DIP wireless serial port module (UART) with AXSEM AX5243 RF chip imported from Switzerland, half duplex, transceiver integrated, transparent transmission mode,425~450.5MHz frequency band (default 433MHz),TTL level output with air wake-up function (ultra low power consumption).
| Hardware parameters | value | Remark |
| Size | 24 * 43 mm | SMA free |
| Antenna | SMA-K | |
| Communication interface | UART | The baud rate supports 1200~115200, the factory default is 9600 |
| Package | Straight plug | |
| Buffer | 512 Byte | Internal automatic packet 43 bytes transmission |
| Electrical parameters | Mini | Type | Max | Unit | Remark |
| supply voltage | 3.3 | 5.0 | 5.2 | V | |
| communication level | 2.5 | 3.3 | 3.6 | V | |
| Emission current | 598 | 650 | 715 | mA | 30dBm（1W） |
| Receive current | 12 | 13 | 14 | mA | |
| sleep current | 4 | 5 | 6 | μA | |
| Operating temperature | -40 | 20 | +85 | ℃ | |
| Working humidity | 10 | 60 | 90 | % | |
| Storage temperature | -40 | 20 | +125 | ℃ |
| RF parameters | parameter value | Remark |
| Working frequency | 425~450.5 MHz | Factory default 433MHz |
| transmit power | 21~30 dBm | Factory default 30dBm (about 1W) |
| Receive sensitivity | -126 dBm | Airspeed 1.2kbps |
| Air rate | 1.2k~70kbps | Factory default 1.2kbps |
| Measured distance | 6000米 | Clear and open environment, maximum power, antenna gain 5dBi, height 2m, airspeed 2.4kbps |