N-R718PE
LoRaWAN Top Mounted Ultrasonic Liquid Level Sensor
- Adopt SX1276 wireless communication module
- 2 ER14505 battery AA SIZE (3.6V / section) parallel power supply
- The main body of R718PE is IP65 / IP67(optional), and the ultrasonic sensor is IP67
- UART Serial communication
- The base of the device is equipped with a magnet that can be attached to an iron object.
- Compatible with LoRaWAN Class A
- Frequency-hopping spread spectrum technology, FHSS
Product Specification
* Electrical characteristics may vary depending on the battery voltage
| Electric: | |
| Power supply | 2 ER14505 lithium batteries (3.6 V, 2400 mAh / section) in parallel |
| Battery life | Battery life is 2.9 years (condition: ambient temperature 25°C, reports once every 30 minutes, txpower = 20 dBm, LoRa spreading factor SF = 10) |
| Standby current | 20 uA |
| Wake-up current | 6.3mA @3.3V |
| Low battery alarm | 3.2V |
| RF receiving current | 11mA@3.3V |
| RF emission current | 120mA@3.3V |
| Measurement Range | 0.25-8m |
| Blind Distance | 0-0.25m |
| Frequency: | |
| Frequency range | 863MHz-928MHz 470MHz-510MHz |
| Power output | US915 20dbm； AS923 16dbm； AU915 20dbm； CN470 19.15dbm； EU868 16dbm； KR920 14dbm； IN865 20dbm； |
| Receiving sensitivity | -136dBm (LoRa, Spreading Factor=12, Bit Rate = 293bps); -121 dBm ( FSK, Frequency deviation=5kHz, Bit Rate=1.2kbps) |
| Antenna type | Built-in antenna |
| Communication distance | Up to 10 km, the actual transmission distance depends on the real 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:112mm*W:88.19mm*H:32mm |
| Operating temperature range | -15℃ ～ 55℃ |
| Operating humidity range | < 90% RH (no condense) |
| Storage temperature range | -25℃ ～ 70℃ |
N-R718PE uses ultrasound to detect the distance between the device and the detected object. The medium the device detects is the air, so the detected object can be any liquid or solid item that has a flat and horizontal surface, water level for example. The main body and the sensor of N-R718PE communicates via the UART serial port, and the detected data can be transmitted via LoRa communication.