Milesight EM500-UDL Ultrasonic Distance/Level Sensor
Authorised Milesight UK DistributorPrice range: £202.01 through £344.16 ex VAT (£242.41 – £412.99 inc. VAT)
EM500-UDL is an outdoor LoRaWAN ultrasonic distance and level sensor. Measuring range depends on the probe: C050 0.25-5 m, C100 0.25-10 m, W050 0.3-5 m and W100 0.5-10 m, all at 1 mm resolution. A single 19000 mAh battery gives around ten years at a ten-minute interval, and the IP67 housing fits a pole, wall or DIN rail.
Measuring range (probe dependent)C050 0.25 - 5 m; C100 0.25 - 10 m; W050 0.3 - 5 m; W100 0.5 - 10 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-UDL is designed for objects distance or level detection in harsh environments and transmitting data using LoRaWAN® technology.
With this low power consumption technology, EM500-UDL 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-UDL is widely used for outdoor applications like flood monitoring, granary level monitoring, etc.
• Features
• Object distance or level detection without touch
• 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
• Store historical records locally and support retransmission
• Equipped with NFC for easy configuration
• Compliant with standard LoRaWAN
® gateways and network
servers
• Quick and easy management with Milesight IoT Cloud solutio
Additional information
| Weight | 0.363 kg |
|---|
EM500-UDL-868M specifications
| Measurement principle | Non-contact ultrasonic distance / level |
|---|---|
| Range & accuracy | W050 0.3-5 m ±1% FS; W100 0.5-10 m ±1% FS; C050 0.25-5 m ±(1+0.3%*S) cm; C100 0.25-10 m ±(1+0.3%*S) cm |
| Resolution | 1 mm |
| Wireless technology | LoRaWAN®, Milesight D2D |
| Frequency | CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4 |
| Tx power | 16 dBm (868 MHz)/20 dBm (915 MHz)/19 dBm (470 MHz) |
| Sensitivity | -137 dBm @300bps |
| LoRaWAN mode | OTAA/ABP Class A |
| Antenna | Internal antenna |
| Advanced features | Data storage (1,000 entries), data retransmission, data retrievability, threshold alarm, change alarm, Milesight D2D controller |
| Configuration | Mobile app via NFC, PC software via USB Type-C, downlink |
| Power supply | 1 × 19000 mAh ER34615 Li-SOCl2 battery (replaceable) |
| Battery life | 10 years (10 min interval, 25°C) |
| Operating temperature | W050/W100 -30°C to +65°C; C050/C100 -15°C to +60°C |
| Relative humidity | 0% to 80% (non-condensing) |
| Ingress protection | IP67 |
| Housing & colour | ABS + PC; black grey (C050/C100), grey (W050/W100) |
| Dimensions | 156.1 × 71 × 69.5 mm (6.1 × 2.8 × 2.7 in) |
| Weight | C050/C100 362.7 g; W050/W100 370.4 g (with battery and mounting bracket) |
| Installation | Pole, wall or DIN rail mounting |
| Approvals | CE, FCC, ISED, Telec, LoRaWAN® Certified; EN 55032/EN 55035; EN 62368-1; RoHS |
Specifications taken from the manufacturer datasheet.
Which version do I need?
Four probes are documented: C050, C100, W050 and W100, differing in range, accuracy and operating temperature. The datasheet lists LoRaWAN bands CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4 but does not spell out the part-number suffix; the -868M build is the EU868 unit required in the UK.
Typical applications for the EM500-UDL-868M
- Liquid level monitoring
- Water tank level monitoring
- Outdoor level detection in harsh environments
- Non-contact object distance detection
- Threshold and change alarms on level
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-UDL-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
Products that work with this one — connect it, power it, and get it online.
Which gateway do I need? Compare the Milesight range, from £98.76 →
-
Milesight Water & Leak Monitoring Kit — Gateway + Level + Leak Sensors
KIT-WATER-LEAK £360.62 ex VAT (£432.74 inc. VAT) -
Milesight UG63 Mini LoRaWAN® Gateway
UG63 Price range: £98.76 through £131.68 ex VAT (£118.51 – £158.02 inc. VAT)Select options This product has multiple variants. The options may be chosen on the product page -
Milesight UG56 Industrial LoRaWAN Gateway
UG56 Price range: £173.58 through £213.98 ex VAT (£208.30 – £256.78 inc. VAT)Select options This product has multiple variants. The options may be chosen on the product page -
Milesight Smart Building Occupancy Kit — Occupancy + Air Quality + Gateway
KIT-OCCUPANCY £531.21 ex VAT (£637.45 inc. VAT)
EM500-UDL-868M — frequently asked questions
What is the maximum measuring range?
10 m, on the C100 (0.25-10 m) or W100 (0.5-10 m) probe. The 5 m probes are C050 (0.25-5 m) and W050 (0.3-5 m). Resolution is 1 mm across all four, so confirm the probe code before ordering.
What is the difference between the C and W probes?
Accuracy and operating temperature. C050/C100 are ±(1+0.3%*S) cm where S is the distance, rated -15°C to +60°C. W050/W100 are ±1% FS, rated -30°C to +65°C.
Does it need a LoRaWAN gateway?
Yes, it is a LoRaWAN Class A device (OTAA/ABP) for standard gateways and network servers. It also supports Milesight D2D, which allows direct device-to-device control alongside the gateway link.
What battery does it use and how long does it last?
One replaceable 19000 mAh ER34615 Li-SOCl2 battery, quoted at 10 years at a 10-minute reporting interval and 25°C using the standard Milesight battery.
What happens to readings if the gateway goes offline?
It stores 1,000 entries locally and supports data retransmission and data retrievability, so buffered records can be recovered.
How does it mount and is it weatherproof?
Pole, wall or DIN rail mounting, with an IP67 ABS+PC enclosure. Humidity is rated 0% to 80% non-condensing.
How much does the Milesight EM500-UDL Ultrasonic Distance/Level Sensor cost in the UK?
The Milesight EM500-UDL Ultrasonic Distance/Level Sensor starts at £202.01 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-UDL Ultrasonic Distance/Level Sensor?
The Milesight EM500-UDL Ultrasonic Distance/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.
Related products
-
-
Milesight EM320-TH Temperature and Humidity Sensor
EM320-TH £41.90 ex VAT (£50.28 inc. VAT)Select options This product has multiple variants. The options may be chosen on the product page -
Milesight EM500-SWL Submersible Water Level Sensor
EM500-SWL-868M Price range: £251.38 through £272.33 ex VAT (£301.66 – £326.80 inc. VAT)Select options This product has multiple variants. The options may be chosen on the product page -
Milesight TS302 Temperature Sensor
Price range: £64.34 through £73.32 ex VAT (£77.21 – £87.98 inc. VAT)Select options This product has multiple variants. The options may be chosen on the product page