The R718PA22 is a wireless communication device that measures the liquid level with an ultrasonic liquid level sensor. Ultrasonic liquid level sensor installed at the bottom of the container may measure water, gasoline, diesel, and small, medium, and large capacity storage tanks (metal, plastic, glass material). R718PA22 main unit and the ultrasonic liquid level sensor communicate via the RS485 interface, and the detected data is sent to the other equipment shown which employs compliance with LoraWANTM wireless communication protocol standards.
Documentation
Data Sheet User ManualHighlighted Features
- Adopt SX1276 wireless communication module
- DC12 adapter power supply
- Equipment body protection grade IP65/IP67 (optional), ultrasonic probe part protection grade IP67
- RS485 communication
- The base is equipped with a magnet that can be attached to the iron object
- Compatible with LoRaWANTM Class A
- Frequency hopping spread spectrum technology
- Configuration parameters can be configured through third-party software platforms
- Data can be read and alerts can be set via SMS text and email (optional)
- Applicable to third-party platforms: Actility / ThingPark / TTN / MyDevices /Cayenne
Specifications
Electric:
|
Power supply |
DC 12V |
|
Working current |
<50mA (external sensor) |
* Specific electrical characteristics will vary depending on the power supply voltage
Frequency:
|
Frequency range |
863MHz-928MHz 470MHz-510MHz |
|
Power output |
19 dBm ±1dBm |
|
Receiving sensitivity |
-136dBm (LoRa，Spreading Factor=12, Bit Rate=293bps ) |
|
Antenna type |
Built-in antenna |
|
Communication distance |
Up to10 km, the actual transmission distance depends on the environment. |
|
Data transfer rate |
0.3kbps to 50kbps |
|
Modulation system mode |
LoRa/FSK (Note: choose one of them) |
|
Supportable LoRaWAN band |
EU863-870, US902-928, AU915-928, KR920-923, AS923, CN470-510 |
Physical:
|
Size |
L: 112 mm*W: 88.19 mm*H: 32 mm |
|
Ambient temperature range |
-20°C to 55°C |
|
Body weight |
About 200g |
|
Ambient humidity range |
<90% RH (no condense) |
|
Storage temperature range |
-40°C ~ 80°C |