Product Overview

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Our Passive IoT Radar Water Meter is purpose-built for utility companies, property management firms, and infrastructure contractors seeking a robust, scalable metering solution.

Featuring battery-free passive IoT technology, this meter supports reliable automatic meter reading (AMR) without the cost and logistics of battery maintenance. Field teams can collect usage data remotely, eliminating manual site visits, reducing labor expenses, and ensuring 100% read rate even in hard-to-access locations.

The multi-jet dry-type design delivers high-precision flow measurement with proven long-term stability, helping you eliminate revenue loss from under-registration and reduce customer billing disputes. The IP68-rated enclosure provides full protection against water, dust, and extreme temperatures, ensuring consistent performance in outdoor pits, damp basements, and high-humidity environments.

Engineered for seamless integration into existing water networks, the meter uses standard thread connections with corrosion-resistant brass fittings, enabling quick, leak-free installation for both new construction and retrofitting projects. Its compact footprint and standardized data protocols simplify integration with SCADA, billing, and smart city management systems, making it easy to scale across multi-unit complexes and municipal water networks.

Built to withstand years of continuous use, this meter delivers a low total cost of ownership (TCO) with minimal maintenance requirements, making it the ideal choice for long-term, large-scale water metering deployments.

Key Features

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✅ Zero-Maintenance Passive IoT AMR

No batteries required. Collect usage data remotely, cut field labor costs, and eliminate missed readings even in hard-to-access locations.

✅ High-Accuracy Multi-Jet Dry Type Design

Proven long-term flow stability reduces revenue loss from under-registration and billing disputes.

✅ IP68 Full Waterproof & Dustproof

Built to withstand outdoor pits, damp basements, and harsh weather conditions for minimal field failures.

✅ Universal Compatibility & Quick Installation

Standard thread sizes with included brass fittings fit most existing plumbing, reducing retrofitting time and on-site labor.

✅ Scalable for Bulk Deployments

Standardized data output for easy integration with SCADA, billing, and smart city management systems.

✅ Low Total Cost of Ownership (TCO)

No battery replacement, minimal maintenance, and a long operational life for cost-effective large-scale use.

Communication Principle

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This passive IoT radar water meter adopts battery-free passive induction communication technology. The built-in high-precision sensor converts water flow into pulse signals, completes accurate metering, and stores consumption data locally.

Without an internal battery, the meter is woken up and powered by radio frequency excitation from external handheld readers or gateway devices. It realizes non-contact wireless data transmission through RF induction.

The meter automatically uploads cumulative water consumption, real-time operating status and fault alarm data to the concentrator, and finally synchronizes to the cloud smart water management platform.

With strong signal penetration, excellent anti-interference performance and zero standby power consumption, it supports fast batch remote AMR reading. It works stably in underground chambers and complex pipeline environments, ensuring long-term reliable data transmission and easy system integration for municipal and property smart water projects.

Technical Specifications

1. General Specifications

Parameter	Value
Water Temperature	0°C – 50°C (cold water) / 0°C – 90°C (hot water)
Max. Operating Pressure	1.6 MPa (16 bar) optional
Pressure Loss	≤ 0.063 MPa at Q3
Accuracy Class	Class 2 per ISO 4064 (Upper zone: ±2%, Lower zone: ±5%)
Installation Orientation	Horizontal (dial facing upward)
Register Type	Dry dial, 8‑digit roller counter, magnetic drive
Minimum Reading	0.0001 m³
Maximum Reading	99,999 m³
Ingress Protection	IP68 (hermetically sealed register)

2. Dimensions (by Material and Connection)

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Dimensions are indicative – please specify required length (e.g., 165, 190, 260, 300 mm).

Size	Length L (mm)	Width W (mm)	Height H (mm)	Connection Options
DN15	165 / 190	85–98	104	Threaded BSP, Union, Quick Coupling
DN20	190 / 195	90–100	108	Threaded BSP, Union, Quick Coupling
DN25	225 / 260	100–110	115	Threaded BSP, Union, Quick Coupling
DN32	230 / 260	110–120	115	Threaded BSP, Union
DN40	245 / 300	120–130	153	Threaded BSP, Union
DN50	280 / 300	124–150	153	Threaded BSP, Flanged (4‑hole), Union

3. Flow Performance (Q3 and Minimum Flow Q1 by Accuracy Class)

Size	Q3 (m³/h)	Minimum Flow Q1 (L/h)				Starting Flow (L/h)
		R80	R100	R160	R200
DN15	2.5	31.25	25	15.6	12.5	≤ 14
DN20	4.0	50	40	25	20	≤ 16
DN25	6.3	78.75	63	39.4	31.5	≤ 19
DN32	10.0	125	100	62.5	50	≤ 25
DN40	16.0	200	160	100	80	≤ 56
DN50	25.0	312.5	250	156.3	125	≤ 70

*Note: Transitional flow Q2 = 1.6 × Q1 for all accuracy classes.*

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Typical Applications

✅ Residential Complexes – Multi-story apartments, gated communities, single-family homes

✅ Commercial Facilities – Office towers, retail centers, hotels, healthcare institutions

✅ Industrial Sites – Manufacturing plants, cooling towers, process water monitoring

✅ Municipal Networks – City water distribution, zone metering, bulk supply points

✅ Agriculture – Farm irrigation systems, greenhouse water management

✅ Underground Chambers – Direct-burial installations (Cast Iron or Stainless Steel)

✅ Meter Replacement Programs – Upgrading old installations with modern, externally adjustable meters

✅ Hot Water Systems – Boilers, solar water heating, district heating (hot water version)

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Cloud Management Platform

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Optimize your water utility operation with our all-in-one WINMETER intelligent metering cloud platform, specially designed for water supply enterprises, property management teams and municipal water management departments.

This integrated cloud system covers full-cycle smart water meter management, featuring visual GIS map positioning for fast meter location lookup, complete water meter file archive management, automatic meter reading data collection and unified data recording. It supports professional meter reading performance statistics and reading quality supervision, greatly improving daily work efficiency.

Built-in intelligent anomaly alert function automatically detects abnormal water consumption, sudden flow fluctuation and incorrect meter reading data, helping you timely find water leakage, meter failure and illegal water usage problems, effectively reduce water resource loss and operational costs.

With stable cloud data storage, simple operation interface and remote real-time data monitoring, our platform realizes digital, standardized and intelligent water metering management. It is your reliable solution to simplify workflow, enhance management efficiency and realize refined water resource management worldwide.

Installation Instructions

🔧 Pre-Installation Steps

Thoroughly flush the pipeline to remove sand, stones, and debris that may damage the meter.

Confirm the meter size, pressure rating, and connection type fully match your system specifications.

Inspect the meter for transit damage (e.g., cracks, loose parts) before installation.

📌 Mounting Requirements

Flow Direction: The arrow embossed on the meter body must align with the actual water flow direction.

Positioning: Install horizontally with the dial facing upward (vertical-mount models require explicit prior ordering).

Straight Pipe Sections: Ensure at least 5× pipe diameter (5D) upstream and 2D downstream (follow 10D/5D for R160/R200 models).

Location: Avoid high points in the pipeline (to prevent air pockets); protect from freezing (cold water version) or excessive heat (for hot water models, add adequate insulation if required).

🔩 Connection Procedures

Threaded (BSP): Insert the supplied rubber gaskets into the coupling nuts – do not use thread sealant. Tighten by hand first, then give a final ¼–½ turn with a wrench. Avoid over-tightening, especially for plastic/nylon bodies.

Flanged (DN50): Place the gasket centrally between flanges, insert bolts, and tighten diagonally in a criss-cross pattern for even pressure.

Union / Quick Coupling: Push the pipe fully until a distinct "click" is heard, then verify the connection is secure.

✅ Post-Installation Checks

Gradually open the inlet valve to prevent water hammer.

Inspect all joints for leaks – tighten connections if necessary.

Release trapped air by opening a downstream tap.

Confirm the register rotates smoothly as water flows through.

With all outlets closed, monitor the low-flow indicator to ensure no hidden leaks exist.

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FAQ

Q: Can this meter integrate with our existing AMR system?A: Yes, it supports standard passive IoT protocols and comes with technical documentation for easy integration with most common AMR and billing platforms.

Q: What is the operational lifespan of the meter?A: Designed for a minimum 10-year operational life with zero battery maintenance, reducing long-term replacement costs.

Q: Do you offer multiple size options or custom solutions?A: Yes, we provide a range of nominal size specifications to fit different plumbing requirements, as well as tiered pricing for bulk orders and custom packaging/labeling for large-scale deployments.

Q: How do I select the right specification for my project?A: Our technical team can assist with specification matching based on your project's plumbing standards, flow requirements, and installation environment-contact us for personalized support.

Why Choose Us

We are a professional manufacturer of smart water metering solutions, with years of experience serving utility providers and infrastructure partners worldwide. Our meters are rigorously tested for durability, accuracy, and compliance with international standards. We offer: