Milesight
Milesight EM500-SWL-868M Submersible Water Level Sensor (L010-4846W)
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Milesight EM500-SWL-868M Submersible Water Level Sensor (L010-4846W)
EUCA Head Office
Clearwater Office Park
Parkhaven, Block H Ground Floor
Boksburg
Gauteng
1459
South Africa
The Milesight EM500-SWL-868M is a LoRaWAN® submersible water level sensor designed for accurate measurement of liquid levels in harsh environments. It works by using a hydrostatic pressure probe that is fully submerged in water or other compatible liquids to measure depth and level changes.
The sensor is widely used in reservoirs, rivers, tanks, wastewater systems, oil storage, and remote water monitoring applications. It is highly resistant to environmental disturbances such as foam, wind, rain, and turbulence, making it more stable than ultrasonic level sensor
Key Features
- Submersible hydrostatic pressure-based level measurement
- Measurement ranges: 0-3 m / 0-5 m / 0-10 m (H₂O versions)
- Customizable range up to 200 m (application dependent)
- High accuracy: ±0.5% Full Scale (FS)
- High resolution: 0.01 m
- Immune to foam, wind, rain, and surface turbulence
- 304 stainless steel submersible probe for corrosion resistance
- IP67-rated transmitter and IP68-rated submersible probe
- Long-range LoRaWAN® communication up to ~10 km line-of-sight
- Ultra-low power design with up to 10 years battery life
- NFC configuration via mobile app (Milesight ToolBox)
- Supports data storage and retransmission
- Threshold alarms for level detection
- Compatible with Milesight IoT Cloud platform
- Suitable for remote, hard-to-access water environments
Specifications
| Parameter | Specification |
|---|---|
| Model | EM500-SWL-868M |
| Sensor Type | Submersible Water Level Sensor |
| Measurement Principle | Hydrostatic Pressure (Gauge Pressure) |
| Measurement Range | 0-3 m / 0-5 m / 0-10 m (standard) |
| Extended Range | Up to 200 m (custom application) |
| Accuracy | ±0.5% FS |
| Resolution | 0.01 m |
| Long-term Stability | ≤ ±0.3% FS/year |
| Communication | LoRaWAN® Class A |
| Frequency Band | EU868 MHz |
| Transmission Power | 16 dBm |
| Sensitivity | -137 dBm @ 300 bps |
| Antenna | Internal |
| Configuration | NFC / Mobile App / USB (ToolBox) |
| Data Storage | 1000 records |
| Alarm Functions | Threshold alarm, data retransmission |
| Power Supply | 1 × 19,000 mAh Li-SOCl₂ battery |
| Battery Life | Up to 10 years (10 min interval) |
| Operating Temperature | -30°C to +70°C (transceiver) |
| Probe Temperature Range | -10°C to +70°C |
| Humidity | 0-100% RH (non-condensing) |
| Protection Rating | IP67 (transceiver), IP68 (probe) |
| Housing Material | ABS + PC (transceiver), 304 stainless steel (probe) |
| Cable Length | ≥ measuring depth + 1–1.5 m |
| Dimensions | 105.4 × 71 × 69.5 mm (transceiver) |
| Installation | Wall / Pole / DIN rail mounting |
| Certifications | CE, FCC, RoHS |