WEIFENG WF8002 Metering Chip for Smart Water Meter and Smart Gas Meter Matching with WMBUS LoRaWAN 4G NB

PCBA Metering Sensor (Based on WF8002)-Standard Pulse Output   At the heart of our PCBA count sensor lies the WF8002, our proprietary inductive metering chip. The sensor operates through an innovative design where detection coils are directly integrated into the PCB. It functions by precisely detecting the rotations of 240°/180°/120°/90°metal plate rotor, which is positioned parallel to the PCBA at an optimized distance.   This working principle makes it an ideal metering solution for smart water and gas meters. The PCBA count sensor is distinguished by its:   Unique Algorithm: Proprietary software ensures accurate counting in complex conditions.   Anti-Magnetic Interference: Immune to external magnetic tampering.   Ultra-Low Power Consumption: Extends battery life for long-term operation.   Durable & Reliable: No moving parts in the sensor ensures a long operational lifespan.   Compact Design: The integrated PCB saves valuable space in meter housings.   Customizable: Configurable to meet specific design and performance requirements.

PCBA Metering Sensor (Based on WF8002)-Standard Pulse Output At the heart of our PCBA count sensor lies the WF8002, our proprietary inductive metering chip. The sensor operates through an innovative design where detection coils are directly integrated into the PCB. It functions by precisely detecting the rotations of 240°/180°/120°/90°metal plate rotor, which is positioned parallel to the PCBA at an optimized distance. This working principle makes it an ideal metering solution for smart water and gas meters. The PCBA count sensor is distinguished by its: Unique Algorithm: Proprietary software ensures accurate counting in complex conditions. Anti-Magnetic Interference: Immune to external magnetic tampering. Ultra-Low Power Consumption: Extends battery life for long-term operation. Durable & Reliable: No moving parts in the sensor ensures a long operational lifespan. Compact Design: The integrated PCB saves valuable space in meter housings. Customizable: Configurable to meet specific design and performance requirements.

PCBA Metering Sensor (Based on WF8002)-Standard Pulse Output At the heart of our PCBA count sensor lies the WF8002, our proprietary inductive metering chip. The sensor operates through an innovative design where detection coils are directly integrated into the PCB. It functions by precisely detecting the rotations of 240°/180°/120°/90°metal plate rotor, which is positioned parallel to the PCBA at an optimized distance. This working principle makes it an ideal metering solution for smart water and gas meters. The PCBA count sensor is distinguished by its: Unique Algorithm: Proprietary software ensures accurate counting in complex conditions. Anti-Magnetic Interference: Immune to external magnetic tampering. Ultra-Low Power Consumption: Extends battery life for long-term operation. Durable & Reliable: No moving parts in the sensor ensures a long operational lifespan. Compact Design: The integrated PCB saves valuable space in meter housings. Customizable: Configurable to meet specific design and performance requirements.

PCBA Metering Sensor (Based on WF8002)-Standard Pulse Output At the heart of our PCBA count sensor lies the WF8002, our proprietary inductive metering chip. The sensor operates through an innovative design where detection coils are directly integrated into the PCB. It functions by precisely detecting the rotations of 240°/180°/120°/90°metal plate rotor, which is positioned parallel to the PCBA at an optimized distance. This working principle makes it an ideal metering solution for smart water and gas meters. The PCBA count sensor is distinguished by its: Unique Algorithm: Proprietary software ensures accurate counting in complex conditions. Anti-Magnetic Interference: Immune to external magnetic tampering. Ultra-Low Power Consumption: Extends battery life for long-term operation. Durable & Reliable: No moving parts in the sensor ensures a long operational lifespan. Compact Design: The integrated PCB saves valuable space in meter housings. Customizable: Configurable to meet specific design and performance requirements.

M-Bus (Meter-Bus) and Wireless M-Bus (wM-Bus) are the European standards (EN 13757) designed for the remote reading of utility meters (water, gas, electricity, and heat). 1. M-Bus (Wired) Definition: A cost-effective wired bus system. Physical Connection: Uses a simple two-wire cable (twisted pair). Powering: The bus can power the slave devices (meters) directly, meaning meters often don't need internal batteries. Topography: Typically a Master/Slave structure where one master can read up to 250 meters over several kilometers of cable. Best For: New constructions or industrial sites where running cables is feasible. 2. Wireless M-Bus (wM-Bus) Definition: The wireless extension of the M-Bus protocol. Frequencies: Operates on license-free sub-GHz bands: 868 MHz (most common in Europe), 433 MHz, and 169 MHz. Powering: Meters are battery-powered and designed to last 10–20 years by staying in sleep mode and waking up only to transmit. Modes: Includes S (Stationary), T (Frequent Transmit), and C (Compact) modes. Best For: Retrofitting existing buildings, "Walk-by/Drive-by" mobile reading, or areas where wiring is too expensive. Key Comparison Feature M-Bus (Wired) Wireless M-Bus Medium Telephone-type cable Radio Frequency (RF) Range Long (km via wire) Short to Medium (100m - 2km) Reliability Very High (No interference) High (But subject to obstacles) Installation High cost (Labor/Wiring) Low cost (Plug & Play) Data Layer Same (EN 13757-3) Same (EN 13757-3)

M-Bus (Meter-Bus) and Wireless M-Bus (wM-Bus) are the European standards (EN 13757) designed for the remote reading of utility meters (water, gas, electricity, and heat). 1. M-Bus (Wired) Definition: A cost-effective wired bus system. Physical Connection: Uses a simple two-wire cable (twisted pair). Powering: The bus can power the slave devices (meters) directly, meaning meters often don't need internal batteries. Topography: Typically a Master/Slave structure where one master can read up to 250 meters over several kilometers of cable. Best For: New constructions or industrial sites where running cables is feasible. 2. Wireless M-Bus (wM-Bus) Definition: The wireless extension of the M-Bus protocol. Frequencies: Operates on license-free sub-GHz bands: 868 MHz (most common in Europe), 433 MHz, and 169 MHz. Powering: Meters are battery-powered and designed to last 10–20 years by staying in sleep mode and waking up only to transmit. Modes: Includes S (Stationary), T (Frequent Transmit), and C (Compact) modes. Best For: Retrofitting existing buildings, "Walk-by/Drive-by" mobile reading, or areas where wiring is too expensive. Key Comparison Feature M-Bus (Wired) Wireless M-Bus Medium Telephone-type cable Radio Frequency (RF) Range Long (km via wire) Short to Medium (100m - 2km) Reliability Very High (No interference) High (But subject to obstacles) Installation High cost (Labor/Wiring) Low cost (Plug & Play) Data Layer Same (EN 13757-3) Same (EN 13757-3)

M-Bus (Meter-Bus) and Wireless M-Bus (wM-Bus) are the European standards (EN 13757) designed for the remote reading of utility meters (water, gas, electricity, and heat). 1. M-Bus (Wired) Definition: A cost-effective wired bus system. Physical Connection: Uses a simple two-wire cable (twisted pair). Powering: The bus can power the slave devices (meters) directly, meaning meters often don't need internal batteries. Topography: Typically a Master/Slave structure where one master can read up to 250 meters over several kilometers of cable. Best For: New constructions or industrial sites where running cables is feasible. 2. Wireless M-Bus (wM-Bus) Definition: The wireless extension of the M-Bus protocol. Frequencies: Operates on license-free sub-GHz bands: 868 MHz (most common in Europe), 433 MHz, and 169 MHz. Powering: Meters are battery-powered and designed to last 10–20 years by staying in sleep mode and waking up only to transmit. Modes: Includes S (Stationary), T (Frequent Transmit), and C (Compact) modes. Best For: Retrofitting existing buildings, "Walk-by/Drive-by" mobile reading, or areas where wiring is too expensive. Key Comparison Feature M-Bus (Wired) Wireless M-Bus Medium Telephone-type cable Radio Frequency (RF) Range Long (km via wire) Short to Medium (100m - 2km) Reliability Very High (No interference) High (But subject to obstacles) Installation High cost (Labor/Wiring) Low cost (Plug & Play) Data Layer Same (EN 13757-3) Same (EN 13757-3)

1. General Product Description (With WF8002)Bluetooth 5.0 Non-Magnetic Metering Sensor (Based on WF8002)This sensor integrates Bluetooth 5.0 Low Energy (BLE) technology with the advanced WF8002 non-magnetic metering chip. Designed for precision IoT applications such as smart water meters smart gas meters and heat meters, the WF8002 handles the core non-magnetic sampling and signal processing, ensuring high reliability and immunity to external magnetic interference. Combined with ultra-low-power Bluetooth 5.0, this module enables efficient local data collection, over-the-air (OTA) configuration, and seamless connectivity with mobile terminals.2. Technical & Feature Focused Description (With WF8002)Key Features:Wireless Connectivity: Supports Bluetooth 5.0 (Bluetooth Low Energy), offering high data throughput (1Mbps) and extended range for reliable communication.Core Metering Technology: Built around the dedicated WF8002 non-magnetic metering chip, which accurately converts mechanical rotation into electronic readings. It features built-in reverse flow detection, high flow alarm, and advanced magnetic interference immunity.Low Power Consumption: The WF8002 is engineered for ultra-low-power operation, making it ideal for long-term battery-powered devices, ensuring extended product lifespan and reduced maintenance costs.Application: Ideal for IoT post-paid/pre-paid meters, enabling remote data upload, leakage alarm, and status monitoring via Bluetooth connectivity.3. Marketing & Application Description (With WF8002)Smart Metering Powered by WF8002 and Bluetooth 5.0Experience the future of utility management with our Bluetooth 5.0 non-magnetic metering solution. At its core, the dedicated WF8002 metering chip ensures precision measurement that is completely resistant to external magnetic fields. Combined with the convenience of Bluetooth 5.0 wireless technology, technicians and consumers can easily query data and perform debugging via a mobile app. Enjoy features like one-button recharge and remote fault diagnosis—all without physical access to the meter.

M-Bus (Meter-Bus) and Wireless M-Bus (wM-Bus) are the European standards (EN 13757) designed for the remote reading of utility meters (water, gas, electricity, and heat). 1. M-Bus (Wired) Definition: A cost-effective wired bus system. Physical Connection: Uses a simple two-wire cable (twisted pair). Powering: The bus can power the slave devices (meters) directly, meaning meters often don't need internal batteries. Topography: Typically a Master/Slave structure where one master can read up to 250 meters over several kilometers of cable. Best For: New constructions or industrial sites where running cables is feasible. 2. Wireless M-Bus (wM-Bus) Definition: The wireless extension of the M-Bus protocol. Frequencies: Operates on license-free sub-GHz bands: 868 MHz (most common in Europe), 433 MHz, and 169 MHz. Powering: Meters are battery-powered and designed to last 10–20 years by staying in sleep mode and waking up only to transmit. Modes: Includes S (Stationary), T (Frequent Transmit), and C (Compact) modes. Best For: Retrofitting existing buildings, "Walk-by/Drive-by" mobile reading, or areas where wiring is too expensive. Key Comparison Feature M-Bus (Wired) Wireless M-Bus Medium Telephone-type cable Radio Frequency (RF) Range Long (km via wire) Short to Medium (100m - 2km) Reliability Very High (No interference) High (But subject to obstacles) Installation High cost (Labor/Wiring) Low cost (Plug & Play) Data Layer Same (EN 13757-3) Same (EN 13757-3)

M-Bus (Meter-Bus) and Wireless M-Bus (wM-Bus) are the European standards (EN 13757) designed for the remote reading of utility meters (water, gas, electricity, and heat). 1. M-Bus (Wired) Definition: A cost-effective wired bus system. Physical Connection: Uses a simple two-wire cable (twisted pair). Powering: The bus can power the slave devices (meters) directly, meaning meters often don't need internal batteries. Topography: Typically a Master/Slave structure where one master can read up to 250 meters over several kilometers of cable. Best For: New constructions or industrial sites where running cables is feasible. 2. Wireless M-Bus (wM-Bus) Definition: The wireless extension of the M-Bus protocol. Frequencies: Operates on license-free sub-GHz bands: 868 MHz (most common in Europe), 433 MHz, and 169 MHz. Powering: Meters are battery-powered and designed to last 10–20 years by staying in sleep mode and waking up only to transmit. Modes: Includes S (Stationary), T (Frequent Transmit), and C (Compact) modes. Best For: Retrofitting existing buildings, "Walk-by/Drive-by" mobile reading, or areas where wiring is too expensive. Key Comparison Feature M-Bus (Wired) Wireless M-Bus Medium Telephone-type cable Radio Frequency (RF) Range Long (km via wire) Short to Medium (100m - 2km) Reliability Very High (No interference) High (But subject to obstacles) Installation High cost (Labor/Wiring) Low cost (Plug & Play) Data Layer Same (EN 13757-3) Same (EN 13757-3)

M-Bus (Meter-Bus) and Wireless M-Bus (wM-Bus) are the European standards (EN 13757) designed for the remote reading of utility meters (water, gas, electricity, and heat). 1. M-Bus (Wired) Definition: A cost-effective wired bus system. Physical Connection: Uses a simple two-wire cable (twisted pair). Powering: The bus can power the slave devices (meters) directly, meaning meters often don't need internal batteries. Topography: Typically a Master/Slave structure where one master can read up to 250 meters over several kilometers of cable. Best For: New constructions or industrial sites where running cables is feasible. 2. Wireless M-Bus (wM-Bus) Definition: The wireless extension of the M-Bus protocol. Frequencies: Operates on license-free sub-GHz bands: 868 MHz (most common in Europe), 433 MHz, and 169 MHz. Powering: Meters are battery-powered and designed to last 10–20 years by staying in sleep mode and waking up only to transmit. Modes: Includes S (Stationary), T (Frequent Transmit), and C (Compact) modes. Best For: Retrofitting existing buildings, "Walk-by/Drive-by" mobile reading, or areas where wiring is too expensive. Key Comparison Feature M-Bus (Wired) Wireless M-Bus Medium Telephone-type cable Radio Frequency (RF) Range Long (km via wire) Short to Medium (100m - 2km) Reliability Very High (No interference) High (But subject to obstacles) Installation High cost (Labor/Wiring) Low cost (Plug & Play) Data Layer Same (EN 13757-3) Same (EN 13757-3)

M-Bus (Meter-Bus) and Wireless M-Bus (wM-Bus) are the European standards (EN 13757) designed for the remote reading of utility meters (water, gas, electricity, and heat). 1. M-Bus (Wired) Definition: A cost-effective wired bus system. Physical Connection: Uses a simple two-wire cable (twisted pair). Powering: The bus can power the slave devices (meters) directly, meaning meters often don't need internal batteries. Topography: Typically a Master/Slave structure where one master can read up to 250 meters over several kilometers of cable. Best For: New constructions or industrial sites where running cables is feasible. 2. Wireless M-Bus (wM-Bus) Definition: The wireless extension of the M-Bus protocol. Frequencies: Operates on license-free sub-GHz bands: 868 MHz (most common in Europe), 433 MHz, and 169 MHz. Powering: Meters are battery-powered and designed to last 10–20 years by staying in sleep mode and waking up only to transmit. Modes: Includes S (Stationary), T (Frequent Transmit), and C (Compact) modes. Best For: Retrofitting existing buildings, "Walk-by/Drive-by" mobile reading, or areas where wiring is too expensive. Key Comparison Feature M-Bus (Wired) Wireless M-Bus Medium Telephone-type cable Radio Frequency (RF) Range Long (km via wire) Short to Medium (100m - 2km) Reliability Very High (No interference) High (But subject to obstacles) Installation High cost (Labor/Wiring) Low cost (Plug & Play) Data Layer Same (EN 13757-3) Same (EN 13757-3)

M-Bus (Meter-Bus) and Wireless M-Bus (wM-Bus) are the European standards (EN 13757) designed for the remote reading of utility meters (water, gas, electricity, and heat). 1. M-Bus (Wired) Definition: A cost-effective wired bus system. Physical Connection: Uses a simple two-wire cable (twisted pair). Powering: The bus can power the slave devices (meters) directly, meaning meters often don't need internal batteries. Topography: Typically a Master/Slave structure where one master can read up to 250 meters over several kilometers of cable. Best For: New constructions or industrial sites where running cables is feasible. 2. Wireless M-Bus (wM-Bus) Definition: The wireless extension of the M-Bus protocol. Frequencies: Operates on license-free sub-GHz bands: 868 MHz (most common in Europe), 433 MHz, and 169 MHz. Powering: Meters are battery-powered and designed to last 10–20 years by staying in sleep mode and waking up only to transmit. Modes: Includes S (Stationary), T (Frequent Transmit), and C (Compact) modes. Best For: Retrofitting existing buildings, "Walk-by/Drive-by" mobile reading, or areas where wiring is too expensive. Key Comparison Feature M-Bus (Wired) Wireless M-Bus Medium Telephone-type cable Radio Frequency (RF) Range Long (km via wire) Short to Medium (100m - 2km) Reliability Very High (No interference) High (But subject to obstacles) Installation High cost (Labor/Wiring) Low cost (Plug & Play) Data Layer Same (EN 13757-3) Same (EN 13757-3)

M-Bus (Meter-Bus) and Wireless M-Bus (wM-Bus) are the European standards (EN 13757) designed for the remote reading of utility meters (water, gas, electricity, and heat). 1. M-Bus (Wired) Definition: A cost-effective wired bus system. Physical Connection: Uses a simple two-wire cable (twisted pair). Powering: The bus can power the slave devices (meters) directly, meaning meters often don't need internal batteries. Topography: Typically a Master/Slave structure where one master can read up to 250 meters over several kilometers of cable. Best For: New constructions or industrial sites where running cables is feasible. 2. Wireless M-Bus (wM-Bus) Definition: The wireless extension of the M-Bus protocol. Frequencies: Operates on license-free sub-GHz bands: 868 MHz (most common in Europe), 433 MHz, and 169 MHz. Powering: Meters are battery-powered and designed to last 10–20 years by staying in sleep mode and waking up only to transmit. Modes: Includes S (Stationary), T (Frequent Transmit), and C (Compact) modes. Best For: Retrofitting existing buildings, "Walk-by/Drive-by" mobile reading, or areas where wiring is too expensive. Key Comparison Feature M-Bus (Wired) Wireless M-Bus Medium Telephone-type cable Radio Frequency (RF) Range Long (km via wire) Short to Medium (100m - 2km) Reliability Very High (No interference) High (But subject to obstacles) Installation High cost (Labor/Wiring) Low cost (Plug & Play) Data Layer Same (EN 13757-3) Same (EN 13757-3)

M-Bus (Meter-Bus) and Wireless M-Bus (wM-Bus) are the European standards (EN 13757) designed for the remote reading of utility meters (water, gas, electricity, and heat). 1. M-Bus (Wired) Definition: A cost-effective wired bus system. Physical Connection: Uses a simple two-wire cable (twisted pair). Powering: The bus can power the slave devices (meters) directly, meaning meters often don't need internal batteries. Topography: Typically a Master/Slave structure where one master can read up to 250 meters over several kilometers of cable. Best For: New constructions or industrial sites where running cables is feasible. 2. Wireless M-Bus (wM-Bus) Definition: The wireless extension of the M-Bus protocol. Frequencies: Operates on license-free sub-GHz bands: 868 MHz (most common in Europe), 433 MHz, and 169 MHz. Powering: Meters are battery-powered and designed to last 10–20 years by staying in sleep mode and waking up only to transmit. Modes: Includes S (Stationary), T (Frequent Transmit), and C (Compact) modes. Best For: Retrofitting existing buildings, "Walk-by/Drive-by" mobile reading, or areas where wiring is too expensive. Key Comparison Feature M-Bus (Wired) Wireless M-Bus Medium Telephone-type cable Radio Frequency (RF) Range Long (km via wire) Short to Medium (100m - 2km) Reliability Very High (No interference) High (But subject to obstacles) Installation High cost (Labor/Wiring) Low cost (Plug & Play) Data Layer Same (EN 13757-3) Same (EN 13757-3)

M-Bus (Meter-Bus) and Wireless M-Bus (wM-Bus) are the European standards (EN 13757) designed for the remote reading of utility meters (water, gas, electricity, and heat). 1. M-Bus (Wired) Definition: A cost-effective wired bus system. Physical Connection: Uses a simple two-wire cable (twisted pair). Powering: The bus can power the slave devices (meters) directly, meaning meters often don't need internal batteries. Topography: Typically a Master/Slave structure where one master can read up to 250 meters over several kilometers of cable. Best For: New constructions or industrial sites where running cables is feasible. 2. Wireless M-Bus (wM-Bus) Definition: The wireless extension of the M-Bus protocol. Frequencies: Operates on license-free sub-GHz bands: 868 MHz (most common in Europe), 433 MHz, and 169 MHz. Powering: Meters are battery-powered and designed to last 10–20 years by staying in sleep mode and waking up only to transmit. Modes: Includes S (Stationary), T (Frequent Transmit), and C (Compact) modes. Best For: Retrofitting existing buildings, "Walk-by/Drive-by" mobile reading, or areas where wiring is too expensive. Key Comparison Feature M-Bus (Wired) Wireless M-Bus Medium Telephone-type cable Radio Frequency (RF) Range Long (km via wire) Short to Medium (100m - 2km) Reliability Very High (No interference) High (But subject to obstacles) Installation High cost (Labor/Wiring) Low cost (Plug & Play) Data Layer Same (EN 13757-3) Same (EN 13757-3)

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