RS485 Magnesium Ion Water Quality Detector with Modbus RTU Output

ZW-MG-PR is a high-precision online magnesium ion sensor designed specifically for industrial water quality monitoring and environmental protection. It uses the ion selective electrode method to achieve real-time, continuous, and stable monitoring of magnesium ion concentration in water. The product is designed to industrial standards and performs excellently in measurement accuracy, environmental adaptability, and communication compatibility. It is widely used in scenarios such as boiler water softening monitoring, industrial wastewater treatment, groundwater analysis, and circulating water systems.

• In terms of measurement performance, ZW-MG-PR has a range covering 0-1000.0 mg/L and a resolution of up to 0.01 mg/L, which can accurately capture subtle changes in magnesium ion concentration. Built in Pt1000 automatic temperature compensation function ensures measurement stability under different water temperature conditions, with a response time (T90) of less than 60 seconds, meeting the stringent requirements of real-time online monitoring.
• In terms of structural design and reliability, the sensor offers two housing materials to choose from: POM+ABS and POM+316L, which balance corrosion resistance and economy, and are suitable for various water quality conditions. The overall protection level of the machine reaches IP68, and it can operate stably in water for a long time. The installation method supports 3/4 NPT thread and immersion installation, making deployment flexible and convenient.
• In terms of communication and power supply, the product comes standard with RS-485 (Modbus RTU) digital output, making it easy to connect to various industrial control systems. It can also be optionally equipped with 4-20 mA analog output to meet the transmission needs of different scenarios. Supports 12-24 V DC wide voltage power supply, with a power consumption of only 0.2 W, energy-saving and environmentally friendly, and low deployment cost.

RS485/4-20 mA parameters:

Packaging:

Single gross weight: 1.200 KG

Single package size: 37X26X5 cm

Product Description: 

Customer on-site examples: 

Application: 

• Boiler water softening monitoring: Real time monitoring of magnesium ion concentration in boiler feedwater to prevent scaling and ensure safe operation of equipment.
• Industrial wastewater treatment: online monitoring of magnesium ion content in wastewater to ensure emissions meet standards and assist in environmental compliance.
• Groundwater and drinking water monitoring: Evaluate the hardness of water sources to ensure the safety of water supply quality.
• Circulating cooling water system: Monitor water quality changes, optimize dosing control, and improve system operating efficiency.
• Aquaculture: Accurately regulate the hardness of aquaculture water bodies to provide a suitable growth environment for aquatic organisms.

Certifications：

We are best water quality sensor manufacturer and exporter in China with more than 10 years. Our water quality sensor products are certified  with of CE, ROHS.

Why RS485 for Water Oxidation-Reduction Potential Monitoring?

Industrial-Grade & Stable Data Transmission: RS485 delivers robust anti-interference performance for real-time, reliable hardness data transmission in harsh environments (e.g., industrial boilers, municipal water supply), ensuring accurate monitoring.
Easy Integration & Scalability:Supports multi-node networking, seamlessly integrates with mainstream PLC/RTU systems, enabling flexible deployment and reducing system integration costs and maintenance complexity.

Production Process:

Why choose us:

1. Strong R & D: 30+ Senior experts and highly educated personnel formed a R & D team, heavy investment, master a number of core technologies and patents.
2. Professional and effective solutions: for smart environmental protection, agriculture and other fields, to provide customized compound networking solutions.
3. Full range of products: covering the whole industry chain products from data collection to platform services to meet diverse needs.
4. Excellent quality: we have perfect quality control system, strictly quality control each production link, low defective rate. 
5. Good service: 7×24 hours fast response, Professional pre-sale, sale, after-sales team support.