EM500-SWL – LoRaWAN Submerged Pressure Water Level Sensor – Milesight
General Description
Milesight 's EM500-SWL is a gauge-based water level sensor. Specifically designed for liquid level monitoring, it can measure up to 200 m (customizable) and transmit data via LoRaWAN® protocol. With a built-in 19,000 mAh battery for up to 10 years of battery life, a rugged IP68 probe, and an IP67 transmitter housing, this sensor is ideal for applications in wet or submerged environments such as wells, reservoirs, rivers, and hydraulic infrastructure.
Targeted Applications
- Level monitoring in reservoirs, wells or tanks
- Water resources and rainwater management
- Monitoring of rivers, canals and basins
- Agricultural or industrial applications
Highlights
- Accurate level measurement up to 200 m (customizable)
- Pressure-immersed probe with accuracy ±0.5% FS
- Built-in 19000 mAh Li-SOCL2 battery – up to 10 years of battery life
- IP67 protection (transmitter) and IP68 (immersed sensor)
- Long-range LoRaWAN transmission
- Quick setup via NFC or USB Type-C
- Cable length suitable for the measuring range (≥ 1 to 1.5 m additional)
Technical Specifications
Transmission |
Technology |
LoRaWAN® |
Supported frequencies |
CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1/2/3/4 |
Transmit power |
16 dBm (868 MHz), 20 dBm (915 MHz), 19 dBm (470 MHz) |
Sensitivity |
-137 dBm @300bps |
Fashion |
OTAA / ABP – Class A |
Level Sensor |
Type of pressure |
Gauge |
Measuring range |
0 to 3 m / 5 m / 10 m (H₂O) – customizable up to 200 m |
Precision |
± 0.5% of scale |
Resolution |
0.01 m |
Long-term stability |
≤ ± 0.3% FS/year |
Interfaces and Connectors |
Switching on/off |
NFC, internal button |
Configuration |
Mobile app (NFC) or PC software via USB Type-C |
Cable length |
≥ Measuring range + 1 to 1.5 m |
Physical Characteristics |
Food |
Li-SOCL2 battery 19000 mAh (ER34615) |
Autonomy |
Up to 10 years (10 minute interval) |
Operating temperature |
Transmitter: -30°C to +70°C Sensor: -10°C to +70°C |
Relative humidity |
0% to 100% (non-condensing) |
Protection index |
IP67 (transmitter) / IP68 (submerged sensor) |
Dimensions |
Transmitter: 105.4 × 71 × 69.5 mm Sensor: 140 × f28 mm |
Facility |
Wall, pole or DIN rail mounting |
Interfaces and Connectors
The EM500-SWL sensor is equipped with a submerged probe connected to the transmitter via a cable adapted to the measuring depth. It is configurable via NFC or USB Type-C and activated by an internal button.
Pack Contents
- 1 × Milesight EM500-SWL Level Sensor
- 1 × Built-in battery
- 1 × Immersed probe (custom length)
- 1 × Wall/Pole/DIN Rail Mounting Kit
- 1 × Quick Installation Guide