EM500-SWL is built for harsh environments, providing stable and accurate liquid level monitoring. It uses a corrosion-resistant stainless steel probe, ultra-low power design for long battery life, and LoRaWAN® wireless transmission. Paired with Milesight gateway and IoT platform, it enables real-time monitoring, alarms and visual management for diverse liquid level applications.
Product Features
Purchase Ways
| Sensor Technical Parameters | |
|---|---|
| Parameter | Specification |
| Measuring range | 0–3m/5m/10m (customizable up to 200m) |
| Accuracy & Resolution | ±0.5% FS; Resolution: 0.01m |
| Probe | 304 stainless steel, corrosion‑resistant, IP68 submersible |
| Transceiver | IP67, operating temp ‑30°C to 70°C |
| Power | 19000mAh battery, up to 10 years battery life |
| Connectivity | LoRaWAN® Class A, up to 10km line‑of‑sight transmission |
| Configuration | NFC & USB Type‑C |
| Data | Local storage (1000 entries), alarm & retransmission |
| Installation | Pole / wall / DIN‑rail mountable |
Application scenarios
Widely used for water tank level monitoring, water resource management, ISO tank tracking, wastewater tank supervision, and oil storage tank level detection in industrial, agricultural and municipal scenarios.
Application Case
Low Operational Efficiency: Fire protection system pressure and water level can only be checked manually via physical gauges.
Data Inaccuracy: Faulty/broken gauges lead to incorrect records, wrong information, and disorganized data, making it hard to detect hidden pipe cracks or leaks even for qualified inspectors.
Maintenance Complexity: Outdated inspection practices increase operational costs and risk of delayed responses to critical issues.
Retrofit existing fire protection infrastructure with LoRaWAN® smart sensors and controllers to enable wireless, real-time monitoring:
EM500-PP Pipe Pressure Sensor: Monitors pipe pressure (0–2.5 MPa adjustable) to detect leaks or pressure drops in sprinkler systems.
EM500-SWL Submersible Water Level Sensor: Tracks water tank/ reservoir levels to ensure sufficient water supply for firefighting.
UC1152 Controller: Connects power meters via RS485/Modbus to integrate additional operational data.
LoRaWAN® Gateway: Aggregates sensor/controller data wirelessly (no cabling required) and forwards it to the customer’s cloud-based monitoring center via MQTT.
IoT Cloud Platform: Centralizes data visualization, threshold alerts, and predictive analytics for proactive disaster response.
Result：LoRaWAN® smart solution enables real-time remote monitoring, boosting efficiency, safety and cutting costs.
EM500-SWL
Submersible Water Level Sensor
EM500-SMTC
EM500-PP
