This sensor adopts a magnesium ion selective electrode based on PVC film, combined with built-in Pt1000 automatic temperature compensation function, which can measure the magnesium ion content in water in real time and stably (range 0-1000.0mg/L, resolution 0.01mg/L). Whether it is surface water monitoring, industrial wastewater treatment, or online analysis in pipelines or storage tanks, ZW-MG-PR can provide fast, accurate, and economical test results.
Core Features:
Ready to use, two point calibration has been completed at the factory, greatly reducing the difficulty of on-site debugging.
| Model | ZW-MG-PR | |
| Shell material | POM和ABS | POM和316L |
| Range and Resolution | 0~1000.0mg/L | 0.01mg/L,0.1℃ |
| Accuracy | ± 10% of the reading; ±0.3℃ | |
| Response Time(T90) | <60s | |
| Minimum detection limit | 0.1 | |
| Calibration Method | Two-point calibration | |
| Cleaning Method | / | |
| Temperature Compensation | Automatic temperature compensation (Pt1000) | |
| Output Method | RS-485(ModbusRTU) ,4-20 mA(Optional) | |
| Storage Temperature | -5~40℃ | |
| Working Conditions | 0~40℃,≤0.2MPa,pH:4~10 | |
| Installation Method | Submerged installation, 3/4 NPT | |
| Power Consumption | 0.2W@12V | |
| Power Supply | 12~24VDC | |
| Protection Level | IP68 | |
| Cable Length | 5 meters, other lengths can be customized | |




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.

1.Are you manufacture?
A:Yes,we are Tranmitter manufacturer and exporter in China with more than 10 years of CE,ROHS,FCC,ISO and 11 patents experience.
2.Do you offer OEM services?
A:Yes,we can provide you with OEM services and design housings and logos.
3.DO you offer free samples?
A:Sorry,we don't offer free samples.After ordering in bulk,we will deduct the sample fee from the second order.
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.
Professional and effective solutions: for smart environmental protection, agriculture and other fields, to provide customized compound networking solutions.
Full range of products: covering the whole industry chain products from data collection to platform services to meet diverse needs.
Excellent quality: we have perfect quality control system, strictly quality control each production link, low defective rate.
Good service: 7×24 hours fast response, Professional pre-sale, sale, after-sales team support.