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Milesight EM500-UDL-915M PN: C050 Ultrasonic Distance and Level Sensor

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Milesight EM500-UDL manufacturer product-family illustration; C050 actual housing is specified black-grey and may differ from this grey illustration
  • Milesight EM500-UDL manufacturer product-family illustration; C050 actual housing is specified black-grey and may differ from this grey illustration
  • Milesight EM500-UDL C050 ultrasonic narrow-beam pattern, manufacturer datasheet, page 3

Product Description

Milesight EM500-UDL-915M PN: C050 Ultrasonic Distance and Level Sensor provides long-range, non-contact ultrasonic distance and liquid-level monitoring for industrial and outdoor IoT applications. The C050 version measures 0.25 m to 5 m, with 1 mm resolution and OEM-defined measurement accuracy of ±(1 + 0.3% × S) cm, where S is distance. The C050 version is suited to appropriate tanks, reservoirs and other installations where ultrasonic beam geometry and the measuring interval are compatible.

C050-specific physical specifications: Black-grey ABS + PC enclosure, IP67 ingress protection, −15°C to +60°C operating temperature, 0–80% RH non-condensing, 156.1 × 71 × 69.5 mm dimensions, and 362.7 g manufacturer-specified weight including battery and mounting bracket. The unit supports pole, wall or DIN-rail mounting. The lower limit of 0.25 m is the minimum specified sensing distance; maintain a clear ultrasonic path and refer to the manufacturer's C050 beam pattern.

Wireless connectivity includes LoRaWAN® OTAA/ABP Class A and Milesight D2D, supporting compatible LoRaWAN gateways and network servers. Configure locally with NFC mobile app or USB Type-C PC software, or remotely through LoRaWAN downlink. The sensor stores up to 1,000 historical records and supports retransmission, retrieval, threshold alerts and change alarms. Its replaceable 19,000 mAh ER34615 Li-SOCl₂ battery is rated for up to 10 years under OEM laboratory conditions (10-minute interval, 25°C); actual performance varies.

Model and frequency: TwoElectrons SKU 2ESE2180 identifies EM500-UDL-915M, PN C050. Although IN865 appears in Milesight's product-family frequency list, compatibility of the supplied 915M hardware with India's IN865 plan must be verified with the supplier. This listing uses C050 measurement specifications only. Product image shows a family illustration; the actual C050 variant is specified as black-grey.

OEM product reference: Milesight EM500-UDL Ultrasonic Distance/Level Sensor.

Applications

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

Product Specifications

ManufacturerMilesight
Product FamilyEM500-UDL
Exact Measuring VariantC050
Model / Radio SuffixEM500-UDL-915M
TwoElectrons SKU2ESE2180
Product TypeUltrasonic Distance and Level Sensor
Measurement PrincipleNon-contact ultrasonic
C050 Measuring Range0.25–5 m
C050 Accuracy±(1 + 0.3% × S) cm; S = distance (as stated by OEM)
C050 Resolution1 mm
C050 Minimum Specified Measurement Distance0.25 m
C050 Operating Temperature−15°C to +60°C
C050 Relative Humidity0–80% RH, non-condensing
C050 Ingress ProtectionIP67
C050 Housing MaterialABS + PC
C050 Housing ColorBlack-grey
C050 Dimensions156.1 × 71 × 69.5 mm
C050 Weight362.7 g including battery and mounting bracket
Mounting MethodPole, wall or DIN rail
Wireless CommunicationLoRaWAN®, Milesight D2D
Internal AntennaYes
Supported Regional Frequency OptionsCN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1/2/3/4
Radio Transmission Power16 dBm (868 MHz) / 20 dBm (915 MHz) / 19 dBm (470 MHz)
Receiver Sensitivity−137 dBm at 300 bps
Activation / LoRaWAN ClassOTAA/ABP, Class A
Radio Line-of-Sight DistanceUp to 10 km in ideal line-of-sight conditions
Internal LED1 × indicator
Internal Button1 × Power/Reset button
Internal USB Connection1 × USB Type-C for configuration/console
Power On / OffNFC or internal button
ConfigurationNFC mobile app, PC via USB Type-C, remote LoRaWAN downlink
Local Reading Storage1,000 entries
Record FunctionsData retransmission and retrievability
Alarm FunctionsThreshold and change alarm
Direct Device FunctionMilesight D2D Controller
Power Supply1 × 19,000 mAh ER34615 Li-SOCl₂ battery, replaceable
Battery Life (Laboratory Guidance)10 years at 10-minute interval and 25°C
Regulatory Approvals Listed by OEMCE, FCC, ISED, Telec, LoRaWAN Certified
EMC StandardsEN 55032 / EN 55035
EMS StandardsIEC 61000-4-2 Level 3 / IEC 61000-4-3 Level 2 / IEC 61000-4-8 Level 4
Radio StandardsFCC Part 15B / FCC Part 15.247 / EN 300 330 / EN 301 489-1/3 / EN 300 220-1/2
Safety StandardEN 62368-1
Environmental ComplianceRoHS
Radio Region for IndiaIN865 family option listed; 915M device suitability must be verified

Product Features

  1. Product is Milesight EM500-UDL-915M fitted with PN C050 ultrasonic measurement type only.
  2. Ultrasonic measurement is non-contact, suitable for compatible liquids and solid surfaces with a clear echo path.
  3. C050 measures from 0.25 m up to 5 m.
  4. OEM accuracy expression: ±(1 + 0.3% × S) cm, S = distance; formula reproduced directly from the manufacturer's C050 column.
  5. Measurement resolution is 1 mm.
  6. The minimum specified measurement distance is 0.25 m; maintain appropriate sensor-to-target clearance.
  7. Consult the C050 narrow-beam test patterns provided on page 3 of the supplied datasheet.
  8. Operating temperature for C050 is −15°C to +60°C.
  9. Operating humidity 0–80% non-condensing.
  10. IP67 rated ABS + PC housing in black-grey (specified color for C050).
  11. Dimensions 156.1 × 71 × 69.5 mm.
  12. Manufacturer stated weight 362.7 g with battery and mounting bracket.
  13. Supported installation on pole, wall or DIN rail.
  14. LoRaWAN® wireless with internal antenna, OTAA/ABP Class A and Milesight D2D.
  15. Radio frequency regional options include CN470, IN865, RU864, EU868, US915, AU915, KR920 and AS923-1/2/3/4.
  16. Transmit power 16 dBm on 868 MHz, 20 dBm on 915 MHz or 19 dBm on 470 MHz according to regional radio version.
  17. Receiver sensitivity −137 dBm at 300 bps.
  18. Wireless line-of-sight range up to 10 km; site conditions can substantially change range.
  19. 1 internal LED indicator, 1 internal power/reset button and internal USB Type-C console.
  20. Device on/off via NFC or internal power button.
  21. Local NFC configuration using mobile app or PC software via USB Type-C; remote settings via downlink.
  22. Data storage up to 1,000 entries, data retransmission and retrievability.
  23. Threshold alarm, change alarm and Milesight D2D Controller functionality.
  24. Power supply 1 × 19,000 mAh ER34615 Li-SOCl₂ replaceable battery.
  25. OEM battery reference 10 years at 10-minute interval and 25°C under laboratory conditions; actual lifetime varies.
  26. OEM lists regulatory approvals CE, FCC, ISED, Telec and LoRaWAN Certified; EMC EN 55032/55035, safety EN 62368-1 and RoHS environmental compliance.
  27. IN865 is available within the EM500-UDL family; India deployment of supplied 915M radio unit requires supplier confirmation.

Package Includes

  • 1 × Milesight EM500-UDL-915M PN C050 Ultrasonic Distance and Level Sensor
  • Specified power is 1 × 19,000 mAh ER34615 Li-SOCl₂ replaceable battery; confirm supplied fitting/inclusion
  • Mounting bracket, fixing screws/straps, installation accessories and other carton contents must be verified against supplier packing list

Frequently Asked Questions

What is the Milesight EM500-UDL-915M C050 Ultrasonic Distance and Level Sensor used for?
The C050 sensor measures object distance or liquid level from 0.25 m to 5 m without physical contact and transmits readings over LoRaWAN. It can support tank, reservoir and municipal water-level monitoring where its measurement range and beam geometry are suitable.
What are the main features of the C050 sensor?
C050 offers non-contact ultrasonic sensing from 0.25–5 m, 1 mm resolution and an OEM accuracy formula of ±(1 + 0.3% × S) cm, with S defined as distance. It has an IP67 black-grey housing, LoRaWAN Class A, Milesight D2D, NFC/remote configuration, historical data storage and a replaceable 19,000 mAh battery.
What specifications should I check before choosing the C050 variant?
Check the 0.25–5 m measurement span, C050 accuracy expression ±(1 + 0.3% × S) cm (S = distance), 1 mm resolution, IP67 rating, −15°C to +60°C operating temperature and 0–80% non-condensing relative humidity. Check C050 beam characteristics and verify whether the 915M radio hardware suits India's IN865 band.
How should I prepare the C050 sensor for use?
Install it vertically above the monitored target on a pole, wall or DIN rail with an unobstructed ultrasonic path and at least 0.25 m clearance. Avoid vessel walls or inlet areas that may cause false echoes. Configure locally with NFC mobile app/USB Type-C PC software or remotely through LoRaWAN downlink after registering with a compatible gateway and network server.
What is included in the package and what is the warranty?
The listing is for one Milesight EM500-UDL-915M PN C050 device. Its specified power source is a replaceable 19,000 mAh ER34615 Li-SOCl₂ battery. Confirm the supplied battery fitting, bracket and mounting accessories in the commercial packing list. TwoElectrons provides a one-year seller warranty subject to its terms.

Other Information

Applications

Non-contact level measurement in water tanks, liquid storage tanks, reservoirs and compatible municipal or remote water-management installations. C050 is suitable where 0.25–5 m measuring distance and the specified beam pattern are appropriate.

Measurement Range & C050 Beam

Only C050 measurement figures apply: 0.25–5 m, accuracy ±(1 + 0.3% × S) cm (S = distance), and 1 mm resolution. A C050-specific ultrasonic beam diagram from page 3 of the OEM datasheet is included in the product media. The OEM's formula is reproduced without inferring alternative units or replacing it with ±1% FS.

Site Installation & Sensor Placement

Mount the sensor vertically with an unobstructed ultrasonic path and a target at least 0.25 m away. Pole, wall or DIN-rail mounting is supported. Choose a representative sensor location that minimizes vessel-wall and inlet echoes and follow the OEM installation guidance.

C050 Environmental Limits

C050 black-grey ABS + PC housing has an IP67 rating and a −15°C to +60°C operating range, with relative humidity 0–80% non-condensing. Overall device dimensions 156.1 × 71 × 69.5 mm; manufacturer weight 362.7 g including battery and bracket.

Remote Configuration and Network Integration

LoRaWAN OTAA/ABP Class A, NFC mobile app, USB Type-C console and remote downlink configuration are supported. Milesight D2D and compatible LoRaWAN gateway/network-server reporting permit integration with Milesight Cloud or Development Platform.

India Radio Band Verification

EM500-UDL includes IN865 within its OEM family frequency options. The listed hardware is marked 915M; do not assume the particular delivered 915M hardware supports IN865 without manufacturer or supplier confirmation.

Historical Data & Power

Up to 1,000 locally stored readings, data retrieval and retransmission, threshold alarms and change alarms. Battery: replaceable ER34615 Li-SOCl₂ 19,000 mAh. Manufacturer reference of 10 years assumes 10-minute intervals and 25°C laboratory conditions; field life depends on usage.

Package Includes

1 × Milesight EM500-UDL-915M PN C050 unit; battery and mounting hardware are subject to packing confirmation. The supplied datasheet gives the battery specification but does not itemize the full commercial contents.

Warranty Information

One-year TwoElectrons seller warranty against manufacturing defects subject to the prevailing warranty coverage and exclusions.

Shipping & Returns Policy

Dispatch, delivery, returns and replacements are governed by TwoElectrons' published shipping/returns policies and any accepted quotation or order terms.

OEM Product Link

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

Source Datasheet

The EM500-UDL OEM datasheet provided by the customer: C050 measurement and physical specifications on page 2; regulations and C050 beam pattern on page 3; dimensions diagram 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: C050 Ultrasonic Distance and Level Sensor

Main Features

  • C050 ultrasonic non-contact distance and liquid-level measurement from 0.25 to 5 m
  • Manufacturer C050 accuracy: ±(1 + 0.3% × S) cm, where S = distance
  • 1 mm ultrasonic measurement resolution
  • IP67 black-grey ABS + PC enclosure for outdoor and industrial monitoring
  • C050 operating temperature −15°C to +60°C; 0–80% RH non-condensing
  • LoRaWAN® OTAA/ABP Class A and Milesight D2D controller support
  • Up to 10 km line-of-sight wireless communication under favorable conditions
  • NFC configuration, USB Type-C PC configuration and remote LoRaWAN downlink
  • Local data storage up to 1,000 measurements, retrieval and retransmission
  • Threshold alarms and change alarms to support automated monitoring
  • 1 × 19,000 mAh replaceable ER34615 battery; 10-year OEM lab estimate
  • Pole, wall or DIN-rail installation for tanks, reservoirs and level-monitoring systems
SKU: 2ESE2180
₹ 85,925.00
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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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