Milesight EM500-SWL Submersible Water Level Sensor
Authorised Milesight UK DistributorPrice range: £251.38 through £272.33 ex VAT (£301.66 – £326.80 inc. VAT)
EM500-SWL is a LoRaWAN submersible level sensor for tanks and open water. The decisive spec is the measuring range: 0-3 m, 0-5 m or 0-10 m as standard and customizable up to 200 m, measured as vented gauge pressure to ±0.5% FS at 0.01 m resolution. The stainless steel probe is IP68 and the 19000 mAh battery lasts 10 years.
Measuring range0 ~ 3 m / 5 m / 10 m (customizable up to 200 m)
In stock · typically dispatched within 14 working days from the UK
● Quotes answered within one working day · UK support
Delivery & assurance
- Ships from the UK
- £14.25 flat UK delivery
- Secure checkout — card, Klarna, invoice
- Manufacturer's warranty
Questions about this product? Call our UK team: 023 9223 3611
Description
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.
• Features
• Stainless probe with corrosion resistance
• Ultra-wide-distance transmission up to line of sight of 10km
• IP67 waterproof enclosure for harsh environment applications
• Built-in 19000 mAh replaceable battery and work for 10 years
without replacement
• Equipped with NFC for easy configuration
• Compliant with standard LoRaWAN
® gateways and network
servers
• Applications
• Water tank level monitoring
• Water resource level monitoring
• ISO tank level monitoring
• Waste water tank monitoring
• Oil store tank level monitoring
Additional information
| Weight | 0.328 kg |
|---|
EM500-SWL-868M specifications
| Technology | LoRaWAN® |
|---|---|
| Antenna | Internal antenna |
| Frequency | CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4 |
| Tx power | 16 dBm (868)/20 dBm (915)/19 dBm (470) |
| Sensitivity | -137 dBm @300bps |
| Mode | OTAA/ABP Class A |
| Pressure type | Vented gauge |
| Measuring range | 0 ~ 3 m/5 m/10 m (customizable up to 200 m) |
| Supported liquid | H2O (customizable for other liquids) |
| Accuracy | ± 0.5% FS |
| Resolution | 0.01 m |
| Long-term stability | ≤ ± 0.3% FS/year |
| Cable length | At least 1-1.5 m longer than measuring range |
| Advanced features | Data storage (1000 entries), data retransmission, data retrievability, threshold alarm |
| Configuration | Mobile app (via NFC), PC software (via USB Type-C), downlink |
| Power supply | 1 × 19000 mAh Li-SOCl2 battery (ER34615) |
| Battery life | 10 years (SF7 & SF10, EU868) at 10 min interval, 25°C |
| Operating temperature | Transceiver: -30°C ~ 70°C; level sensor: -20°C ~ 70°C |
| Relative humidity | 0% to 100% (non-condensing) |
| Ingress protection | Transceiver: IP67; level sensor: IP68 |
| Housing | Transceiver: ABS + PC, grey; level sensor: stainless steel 304, silver |
| Weight | Transceiver: 328 g (with battery and mounting bracket); level sensor: differs with cable length |
| Dimensions | Transceiver: 105.4 × 71 × 69.5 mm; level sensor: 130 × ф27 mm |
| Installation | Pole, wall or DIN rail mounting |
| Approvals | CE, FCC, ICASA, ISED, Telec; RoHS |
Specifications taken from the manufacturer datasheet.
Which version do I need?
-868M is the EU868 band, the one to specify for UK LoRaWAN. Measuring range is the other order-time choice: 0-3 m, 0-5 m or 0-10 m as standard, customizable up to 200 m, and the probe cable is supplied at least 1-1.5 m longer than the range chosen.
Typical applications for the EM500-SWL-868M
- Water tank level monitoring
- Water resource and river level monitoring
- ISO tank level monitoring
- Waste water tank monitoring
- Oil storage tank level monitoring
Buying guides for this product
Frequency band
Supplied on EU868, the LoRaWAN band used in the UK and across Europe. That is the default and you do not need to ask for it — the -868M in the part number is the EU868 build.
The same EM500-SWL-868M unit also covers IN865 and RU864. Those bands share the 863–870 MHz radio with EU868, so one device can be set to any of them in its own configuration — no different part number needed.
CN470, US915, AU915, KR920 and AS923 are a different radio and therefore a different build. Milesight makes them and we can order them: tell us where the devices are being deployed and we will confirm the part number, price and lead time.
Not sure which band applies where? The Things Network publishes the LoRaWAN frequency plan for every country.
Complete the stack
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EM500-SWL-868M — frequently asked questions
What is the maximum measuring range?
Standard ranges are 0-3 m, 0-5 m and 0-10 m, and the datasheet states the range is customizable up to 200 m. The range must be specified at order because the cable is cut to suit it.
How accurate is it?
± 0.5% of full scale, with 0.01 m resolution and long-term stability of ≤ ±0.3% FS per year. It is a vented gauge pressure measurement.
Which liquids can it measure?
H2O as standard, and the datasheet states it can be customized for other liquids.
How long is the probe cable?
At least 1-1.5 m longer than the measuring range ordered, so the transceiver can be mounted clear of the tank or watercourse on a pole, wall or DIN rail.
Can the probe stay permanently submerged?
The level sensor is IP68 in stainless steel 304 and rated -20°C to 70°C; the transceiver above the surface is IP67 and rated -30°C to 70°C.
How much does the Milesight EM500-SWL Submersible Water Level Sensor cost in the UK?
The Milesight EM500-SWL Submersible Water Level Sensor starts at £251.38 ex VAT from Indiott, with the exact figure depending on the variant you choose. Indiott is a UK distributor and invoices with VAT (PSI Technologies Ltd, VAT GB 730 2340 83). UK delivery is a flat £14.25 per order ex VAT, whatever the weight.
What is the lead time and delivery cost for the Milesight EM500-SWL Submersible Water Level Sensor?
The Milesight EM500-SWL Submersible Water Level Sensor is in stock and typically dispatched within 14 working days from the UK. UK delivery is a flat £14.25 per order ex VAT, whatever the weight or how many items you order. We ship to GB and the EU and provide a VAT invoice with every order.
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