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Milesight EM500-UDL-915M PN: W100 Ultrasonic Distance and Level Sensor

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Milesight EM500-UDL-915M W100 ultrasonic level and distance sensor with grey IP67 LoRaWAN transmitter and ultrasonic horn, manufacturer product illustration
  • Milesight EM500-UDL-915M W100 ultrasonic level and distance sensor with grey IP67 LoRaWAN transmitter and ultrasonic horn, manufacturer product illustration

Product Description

Milesight EM500-UDL-915M PN: W100 Ultrasonic Distance and Level Sensor is a rugged, battery-powered LoRaWAN® sensor for measuring object distance and liquid or tank levels without physical contact. The W100 version measures from 0.5 m to 10 m, with ±1% full-scale (FS) accuracy and 1 mm resolution. It is suitable for water tanks, reservoirs and other outdoor level-monitoring installations with a clear ultrasonic sensing path.

The W100 enclosure is IP67-rated, constructed from grey ABS + PC, and operates at −30°C to +65°C and 0–80% relative humidity, non-condensing. Device dimensions are 156.1 × 71 × 69.5 mm; manufacturer-stated weight is 370.4 g with battery and mounting bracket. Supported installation methods include pole, wall and DIN-rail mounting.

The unit provides LoRaWAN® OTAA/ABP Class A wireless connectivity and Milesight D2D, with configuration using NFC mobile app, internal USB Type-C PC console or LoRaWAN downlink via compatible infrastructure. It supports up to 1,000 stored historical readings, data retransmission and retrieval, threshold alarms and change alarms. The replaceable 19,000 mAh ER34615 Li-SOCl₂ battery has an OEM laboratory battery-life estimate of up to 10 years at a 10-minute reporting interval and 25°C; field life varies.

Variant and radio compatibility: This listing is for W100 only under SKU 2ESE2179, designated EM500-UDL-915M. Milesight lists IN865 among the EM500-UDL family’s regional variants, but the supplied 915M hardware’s suitability for India’s IN865 frequency plan must be confirmed before deployment. The 0.5 m lower limit is the minimum specified measurement distance; follow the OEM W100 beam pattern when installing above a target.

OEM: Milesight EM500-UDL Ultrasonic Distance Sensor.

Applications

Tank Level Monitoring Liquid Level Monitoring Water Level Monitoring Municipal Water Management

Product Specifications

Manufacturer / OEMMilesight
Product FamilyEM500-UDL
Measurement Part NumberW100
Specified VariantEM500-UDL-915M W100
Shopify SKU2ESE2179
Sensor CategoryUltrasonic Distance and Level Sensor
Measurement PrincipleNon-contact ultrasonic distance
W100 Measurement Range0.5–10 m
W100 Measurement Accuracy±1% FS
W100 Measurement Resolution1 mm
W100 Minimum Specified Distance0.5 m
W100 Operating Temperature−30°C to +65°C
W100 Relative Humidity0–80% RH, non-condensing
W100 Ingress ProtectionIP67
W100 HousingABS + PC
W100 Housing ColorGrey
W100 Dimensions156.1 × 71 × 69.5 mm
W100 Weight370.4 g (with battery and mounting bracket)
InstallationPole, wall or DIN rail
Wireless TechnologyLoRaWAN®, Milesight D2D
Antenna TypeInternal antenna
LoRaWAN Frequency OptionsCN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1/2/3/4 (by radio region)
Radio Transmit Power16 dBm at 868 MHz / 20 dBm at 915 MHz / 19 dBm at 470 MHz
Receiver Sensitivity−137 dBm at 300 bps
Activation and LoRaWAN ClassOTAA / ABP, Class A
Wireless Transmission DistanceUp to 10 km line-of-sight under ideal conditions
Internal LED1 × LED indicator
Internal Control Button1 × Power/Reset button
Internal USB InterfaceUSB Type-C for configuration and console
Power On/OffNFC or internal power button
ConfigurationNFC mobile app / PC via USB Type-C / LoRaWAN downlink
Local Data StorageUp to 1,000 entries
Record HandlingData retransmission and retrievability
Alert FunctionsThreshold alarm; change alarm
Additional FunctionMilesight D2D Controller
Power Supply1 × 19,000 mAh ER34615 Li-SOCl₂ battery
Battery Life Reference10 years at 10-minute reporting interval and 25°C (OEM lab estimate)
Manufacturer Regulatory ApprovalsCE, FCC, ISED, Telec, LoRaWAN Certified
EMCEN 55032, EN 55035
EMSIEC 61000-4-2 Level 3; IEC 61000-4-3 Level 2; IEC 61000-4-8 Level 4
Radio Frequency StandardsFCC Part 15B; FCC Part 15.247; EN 300 330; EN 301 489-1/3; EN 300 220-1/2
Electrical Safety StandardEN 62368-1
Environmental ComplianceRoHS
India Radio Compatibility NoteIN865 is offered in the product family; verify the 915M hardware before deployment

Product Features

  1. This SKU is the EM500-UDL-915M W100 non-contact ultrasonic distance and level sensing model.
  2. W100 measures distance between 0.5 and 10 m; distances below 0.5 m are outside its specified measurement range.
  3. The W100 accuracy is ±1% of the full measurement scale (FS).
  4. Resolution is 1 mm.
  5. Outdoor W100 operating temperature is −30°C to +65°C.
  6. Relative humidity limits are 0–80% non-condensing.
  7. IP67 rated grey ABS + PC housing for harsh deployments.
  8. Overall dimensions: 156.1 × 71 × 69.5 mm.
  9. Weight: 370.4 g with battery and mounting bracket (OEM specification).
  10. Compatible installation: pole, wall or DIN rail.
  11. LoRaWAN® Class A supports OTAA and ABP activation methods.
  12. Milesight D2D direct-control function for compatible receivers.
  13. Internal antenna, transmitter power 16 dBm (868 MHz), 20 dBm (915 MHz) or 19 dBm (470 MHz) depending on regional version.
  14. Receiver sensitivity −137 dBm at 300 bps.
  15. Regional options listed by the OEM include CN470, IN865, RU864, EU868, US915, AU915, KR920 and AS923-1/-2/-3/-4.
  16. LoRaWAN® range can reach up to 10 km line of sight in suitable conditions; actual radio distance varies.
  17. One internal status LED, power/reset button, and USB Type-C port for console/configuration.
  18. Switch on/off via NFC or internal power button.
  19. Configure using the mobile app via NFC, PC software through USB Type-C, or LoRaWAN downlink.
  20. Stores up to 1,000 measurements and supports data retransmission and retrieval.
  21. Threshold alarms, change alarms and Milesight D2D Controller are supported.
  22. Powered by one replaceable 19,000 mAh ER34615 Li-SOCl₂ battery.
  23. OEM battery-life reference: 10 years at 10-minute reporting interval and 25°C in laboratory conditions, not guaranteed field life.
  24. OEM lists CE, FCC, ISED, Telec, LoRaWAN certification, EMC, safety and RoHS compliance; documentation depends on device variant.
  25. Follow W100-specific beam pattern on page 4 of the datasheet when selecting sensor direction, distance and target clearance.
  26. IN865 is an available family frequency, but compatibility of the actual 915M supply must be verified for India.

Package Includes

  • 1 × Milesight EM500-UDL-915M PN W100 Ultrasonic Distance and Level Sensor
  • Power specification is 1 × 19,000 mAh ER34615 Li-SOCl₂ battery; confirm whether pre-installed or separately supplied
  • Mounting bracket, fixings and other accessories: confirm in the supplier quotation and packing list

Frequently Asked Questions

What is the Milesight EM500-UDL-915M W100 used for?
The Milesight EM500-UDL W100 provides non-contact ultrasonic distance and level measurement from 0.5 to 10 metres. It can be installed over suitable water tanks, liquid storage vessels and reservoirs to report level measurements through a compatible LoRaWAN network.
What are the main features of the W100 sensor?
W100 provides a 0.5–10 m distance range, ±1% full-scale accuracy and 1 mm resolution in an IP67 grey housing. It supports LoRaWAN Class A, Milesight D2D, NFC and remote downlink configuration, local storage of 1,000 records, threshold/change alarms, and a replaceable 19,000 mAh battery.
What specifications should I check before choosing this product?
Check the W100 measurement range (0.5–10 m), 0.5 m minimum distance, ±1% FS accuracy, 1 mm resolution, IP67 protection, −30°C to +65°C operating temperature and 0–80% non-condensing humidity. Check mounting geometry and the W100 beam pattern. For India, confirm that the supplied 915M model supports the required IN865 frequency plan.
How should I prepare the W100 sensor for use?
Mount the device on a suitable pole, wall or DIN rail above the intended target. Keep the ultrasonic beam unobstructed and the measured surface at least 0.5 m from the sensor. Activate and configure via NFC app or USB Type-C PC software, or remotely by LoRaWAN downlink, then connect to an appropriate gateway and network server.
What is included in the package and what is the warranty?
The listing covers one Milesight EM500-UDL-915M W100 sensor. It is designed for one 19,000 mAh ER34615 Li-SOCl₂ battery; confirm whether that battery and mounting accessories are included in the shipment against the supplier packing list. A one-year TwoElectrons seller warranty applies subject to terms.

Other Information

Applications

Non-contact object distance and liquid-level sensing, water tanks, storage tanks, reservoirs, and outdoor municipal water monitoring where the W100 0.5–10 m sensing interval is suitable.

W100 Measurement and Mounting Guidance

Only W100 specifications apply: 0.5–10 m, ±1% FS, 1 mm resolution. Provide at least 0.5 m sensing distance, account for tank geometry and beam pattern, and avoid obstructions. See the W100 beam-pattern figure on page 4 of the provided manufacturer datasheet.

Outdoor Environment

The W100 is IP67 with a grey ABS + PC housing; operating temperature is −30°C to +65°C and humidity 0–80% non-condensing. Pole, wall and DIN-rail mounting are supported.

Network and Remote Management

LoRaWAN OTAA/ABP Class A with internal antenna; configure via NFC mobile app, internal USB Type-C console or LoRaWAN downlink. Connect to compatible LoRaWAN gateways/network servers to report readings remotely. Supports Milesight D2D Controller.

India and Regional Frequency

The user-specified 915M suffix must not be assumed to support IN865 solely because IN865 appears among the OEM family options. Confirm actual frequency-plan support and certificates with Milesight or the supplier before use in India.

Data and Battery

Up to 1,000 readings stored locally, with retransmission, retrieval, threshold alarms and change alarms. Uses one replaceable 19,000 mAh ER34615 Li-SOCl₂ battery. The 10-year estimate assumes 10-minute reports at 25°C under OEM laboratory conditions.

Package Includes

The product is sold as one Milesight EM500-UDL W100 device; the datasheet specifies the power source but does not confirm full carton contents. Confirm included battery and mounting bracket/hardware with the quotation.

Warranty Information

One-year TwoElectrons seller warranty against manufacturing defects, subject to current applicable terms, exclusions and proof-of-purchase requirements.

Shipping & Returns Policy

Dispatch, shipping, deliveries, returns and replacements are governed by the current TwoElectrons shipping and returns policies and confirmed order/quotation terms.

OEM Product Link

https://www.milesight.com/iot/product/lorawan-sensor/em500-udl

Documentation

Product specifications are based on the supplied Milesight EM500-UDL datasheet: W100 measurement and environmental data on page 2, regulatory details on page 3, W100 beam pattern on page 4, and dimensions on page 5.

Warranty Information

1 Year Seller Warranty

This item is covered with a standard warranty of 1 year from the time of delivery against manufacturing defects only. This warranty is given for the benefit of TwoElectrons customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What Voids Warranty

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Shipping & Returns Policy

Shipping Policy:
  • In-stock items are delivered within 7-10 working days for orders within India. Delivery varies based on location and courier service.
  • In-stock items are delivered within up to 20 working days for orders outside India. Delivery varies based on location and courier service.
  • If the item is out of stock, you can still place an order. The estimated delivery time will be notified to you by email.
Return & Refund Policy:
  • Return window: 7 days from receipt unless stated otherwise.
  • No refunds or replacements after the return window.
  • Returns are accepted only for non-working or damaged products.
  • Initiate return requests from here: Return Request or contact us at 09831070550.
  • Refunds are processed within 3-4 working days after inspection and approval.
Milesight EM500-UDL-915M PN: W100 Ultrasonic Distance and Level Sensor

Main Features

  • Non-contact ultrasonic distance and liquid level monitoring with the W100 measuring variant
  • W100 measuring range 0.5–10 m; accuracy ±1% of full scale (FS)
  • 1 mm measurement resolution and minimum specified sensing distance of 0.5 m
  • Weather-resistant IP67 grey ABS + PC housing for outdoor level monitoring
  • W100 ambient operating range −30°C to +65°C and 0–80% RH non-condensing
  • Long-range LoRaWAN® radio, Class A (OTAA/ABP) and Milesight D2D
  • Internal radio antenna with up to 10 km transmission under ideal line-of-sight conditions
  • Remote configuration via LoRaWAN downlink, plus NFC mobile-app and USB Type-C PC setup
  • Up to 1,000 historical records, data retrieval/retransmission and threshold/change alarms
  • 19,000 mAh replaceable ER34615 Li-SOCl₂ battery; up to 10 years in OEM laboratory tests
  • Mounts on pole, wall or DIN rail with 156.1 × 71 × 69.5 mm housing
  • Ideal for water and liquid tank level monitoring and other suitable non-contact distance measurements
SKU: 2ESE2179
₹ 146,390.00
For bulk orders, volume pricing & B2B enquiries, contact our team →

Lead time

QUANTITY DISPATCH
1-10 units Order from India: 7-10 working days
Order outside India: Up to 20 working days
10+ units To be negotiated
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