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SR003 Ultrasonic Water Meter LoRaWAN GSM 4G RS485

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SR003 Ultrasonic Water Meter LoRaWAN GSM 4G RS485

Product Description

The SR003 is a smart ultrasonic water meter for accurate cold-water metering in residential, commercial and utility water-management applications. Available in DN15, DN20 and DN25 sizes, it combines non-contact ultrasonic measurement with an LCD, IP68 protection, long-life 3.6V lithium-battery operation and remote communication options including LoRaWAN, NB-IoT, GPRS/4G, M-Bus and RS485.

Product Specifications

ManufacturerTai'an Desheng Information Technology Co., Ltd.
ModelSR003
Measurement PrincipleUltrasonic
MediumCold water
Pipe SizesDN15 / DN20 / DN25
Range RatioR160 / R250 / R400, configuration dependent
Transducer Frequency1 MHz
Supply VoltageDC 3-10V, typical 3.6V
BatteryER26500 3.6V lithium, 8500mAh
CommunicationLoRaWAN / NB-IoT / GPRS / 4G / M-Bus / RS485
Temperature ClassT30 / T50 / T90
Maximum Working Pressure1.6 MPa
ProtectionIP68
Accuracy ClassClass 2
Minimum Measurable Flow Velocity0.005 m/s (DN15)
DN15 Size110 × 101 × 92 mm
DN20 Size130 × 101 × 92 mm
DN25 Size225 × 101 × 92 mm
Reverse Flow MeasurementNot supported

Product Features

  1. Measures small-diameter cold-water flow using ultrasonic technology without traditional mechanical moving parts.
  2. Supports remote meter-reading and smart-water integration through LoRaWAN, NB-IoT, GPRS/4G, M-Bus and RS485 communication options.
  3. LCD display supports local reading and diagnostic information while low-power operation is designed for long battery service.
  4. Available in DN15, DN20 and DN25 sizes with IP68 protection and a maximum allowable working pressure of 1.6 MPa.
  5. Supports configurable reporting functions and multiple measurement units for residential, commercial and utility deployments.

Package Includes

  • 1 × SR003 Ultrasonic Smart Water Meter

Other Information

Applications & Use Cases
  • Residential and commercial water metering
  • Smart-city and AMR/AMI water projects
  • Water utility and smart-building consumption monitoring
Important Note

Select the correct DN size and communication option before ordering. The manufacturer specifies this model for cold water and states that reverse-flow measurement is not supported. Install in the indicated flow direction and prevent debris from entering the meter during installation.

Warranty Information

15 Days Seller Warranty

This item is covered with a standard warranty of 15 days 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:
  • Delivery time within metro cities in India is 1-3 days; for other locations, it is 3-7 days. Delivery varies based on location and courier service.
  • If the item is out of stock, the estimated delivery time is 7-14 days from order confirmation. Delivery varies based on location and courier service.
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.

Main Features

  • Ultrasonic water metering with no mechanical moving parts
  • DN15, DN20 and DN25 sizes with range ratios up to R400
  • LoRaWAN, NB-IoT, GPRS/4G, M-Bus and RS485 communication options
  • IP68 enclosure with LCD display and low-power 3.6V lithium battery
  • Up to 1.6 MPa working pressure with minimum measurable flow velocity down to 0.005 m/s on DN15
SKU: 2ESE20107
₹ 5,736.27
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Lead time

Quantity Dispatch
1-10 units 1 to 3 days (metro cities)
3 to 7 days (others location)
>10 units To be negotiated
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