EM500-SWL is designed for measuring liquid level in harsh environments and transmitting data using LoRaWAN® technology. With this low power consumption technology, EM500-SWL can work up to 10 years with 19000 mAh battery. Combining with Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, users can manage all sensor data remotely and visually.
EM500-SWL is widely used for applications like tank level monitoring, river level monitoring, etc.
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Wireless Transmission |
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Technology |
LoRaWAN® |
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Frequency |
CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4 |
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Tx Power |
16dBm(868)/20dBm(915)/19dBm(470) |
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Sensitivity |
-137dBm @300bps |
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Mode |
OTAA/ABP Class A |
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Measurement |
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Pressure Type |
Gauge Pressure |
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Range |
0 ~ 3m/5m/10m (H2O) (Customizable up to 200 m and for other liquids) |
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Accuracy |
± 0.5% FS |
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Resolution |
0.01 m |
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Long-term Stability |
≤ ± 0.3% FS/year |
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Operation |
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Power On & Off |
NFC, Power Button (Internal) |
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Configuration |
Mobile App(via NFC) or PC software(via USB Type-C) |
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Physical Characteristics |
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Cable Length |
At least 1-1.5m longer than measuring range |
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Power Supply |
19000 mAh Li-SOCL2 battery (ER34615) |
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Battery Life* |
10 years (10 min interval) |
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Operating Temperature |
-30°C to +70°C (Transceiver)/-10°C to +70°C (Level Sensor) |
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Relative Humidity |
0% to 100% (non-condensing) |
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Ingress Protection |
IP67 (Transceiver)/IP68(Level Sensor) |
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Dimension |
Transceiver: 105.4 × 71 × 69.5 mm (4.1 × 2.8 × 2.7 in) Level Sensor: 140 × ф28 mm (5.5 × ф1.1 in) |
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Installation |
Pole, wall or DIN Rail Mounting |
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Approvals |
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Regulatory |
CE, FCC, RoHS |
