E19-433M20S is based on original imported RFIC SX1278 from SEMTECH, adopts LoRa spread spectrum technology. Which means the transmitting distance is much longer than before, besides the power density is more concentrated and anti-interference performance is better. It boasts outstanding range, efficiency and interference resistance, making it the ideal choice for all your long-distance wireless connectivity needs.
[IC] : SX1278
[Frequency] : 410~441MHz
[Power] : 20dBm
[Distance] : 5.0km
[Interface] : SPI
[Weight] : 2.3±0.1g
RF Parameter | Value |
Remark |
Working frequency |
2400~2500 MHz |
ISM band |
Transmitting power | 27 dBm |
About 500mW |
Receiving sensitivity | -132 dBm |
Air data rate: 595kbps |
Air data rate |
LoRa(bps):0.595k~253.9k FLRC(bps):260k~1.3M GFSK(bps):125k~2M |
Defined by user via programming |
Test distance | 8000m |
Test condition:clear and open area, antenna gain: 5dBi, antenna height: 2.5m,air data rate: 1kbps |
Hardware Parameter | Value |
Remark |
Size |
26.5 * 15 mm |
- |
Antenna type | IPEX / PCB |
50Ω Impedance |
Communication interface | SPI |
0~10Mbps |
Package | SMD |
- |
Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
Power supply |
2.5 | 3.3 | 3.6 | V | ≥3.3 V ensures output power |
Communication level | - | 3.3 | - | V | For 5V TTL, it may be at risk of burning down |
Transmitting current |
- |
580 | - | mA | Instant power consumption |
Receiving current | - |
14.5 | - | mA |
- |
Sleep current | - | 2.0 | - | μA | Software is shut down |
Operating temperature |
-40 | 20 |
+85 | ℃ | - |
Operating humidity |
10 | 60 |
90 | % | - |
Storage temperature |
-40 | 20 |
+125 | ℃ | - |









