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Evie Huang sales consultant
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Email: Sales@matictest.com
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Phone/WhatsApp: +86 18996117830
Smart pH Sensor MT-110 Series | Digital pH Electrode
Digital smart pH electrodes with 0-14 pH range, ±0.1 pH accuracy and IP68 housing. RS485 Modbus RTU plus 4-20mA output, standard thread mounting, corrosion resistant and easy to calibrate.
Description
Product Overview
The MT-110 series smart pH sensor measures the acidity or alkalinity of water with high precision and long-term stability. pH expresses the degree of acidity or alkalinity of a solution and is the standard indicator of hydrogen ion concentration.
Each sensor in the series is a digital electrode with built-in signal processing, offering both RS485 Modbus RTU communication and a 4–20 mA current output. A standard threaded body fits a wide variety of mounting structures, the housing is corrosion resistant, and calibration is straightforward — which keeps maintenance simple across large distributed networks.
Key Features
- Full-range measurement: 0–14 pH with ±0.1 pH accuracy and 0.01 pH resolution.
- Integrated temperature measurement: 0.00–40 °C temperature range with 0.1 °C resolution for automatic compensation.
- Dual output: RS485 (Modbus RTU) digital communication plus 4–20 mA (adjustable, 3-wire) analogue output.
- IP68 protection: Fully sealed housing rated IP68, suitable for continuous submersion.
- Standard threaded mounting: Fits multiple installation structures — pipe tees, flow cells, immersion brackets.
- Corrosion resistant, easy calibration: Robust materials and a simple calibration routine reduce service time.
- Lightweight: Approximately 0.5 kg, easy to handle and install.
Model Comparison
| Model | MT-110ZT | MT-110ZL | MT-110ZX | Stainless Steel MT-110 |
|---|---|---|---|---|
| Measurement range | 0–14 pH | 0–14 pH | 0–14 pH | 0–14 pH |
| Accuracy | ±0.1 pH | ±0.1 pH | ±0.1 pH | ±0.1 pH |
| Resolution | 0.01 pH | 0.01 pH | 0.01 pH | 0.01 pH |
| Temperature range | 0.00–40 °C | 0.00–40 °C | 0.00–40 °C | 0.00–40 °C |
| Temperature resolution | 0.1 °C | 0.1 °C | 0.1 °C | 0.1 °C |
| Housing material | PPS | PPS | PPS | Stainless steel |
| Signal output | 4–20 mA (adjustable, 3-wire) | 4–20 mA (adjustable, 3-wire) | 4–20 mA (adjustable, 3-wire) | 4–20 mA (adjustable, 3-wire) |
| Data communication | RS485 (Modbus RTU) | RS485 (Modbus RTU) | RS485 (Modbus RTU) | RS485 (Modbus RTU) |
| Power supply | 12 VDC / 24 VDC | 12 VDC / 24 VDC | 12 VDC / 24 VDC | 12 VDC / 24 VDC |
| Protection / weight | IP68 / 0.5 kg | IP68 / 0.5 kg | IP68 / 0.5 kg | IP68 / 0.5 kg |
Technical Specifications
| Item | Specification |
|---|---|
| Measurement range | 0–14 pH |
| Measurement accuracy | ±0.1 pH |
| Resolution | 0.01 pH |
| Temperature measurement range | 0.00–40 °C |
| Temperature resolution | 0.1 °C |
| Housing material | PPS (stainless steel version available) |
| pH signal output | 4–20 mA (adjustable, 3-wire) |
| Data communication | RS485 (Modbus RTU) |
| Power supply | 12 VDC / 24 VDC |
| Protection rating / weight | IP68 / 0.5 kg |
Applications
- Aquaculture
- Municipal wastewater
- Industrial wastewater
- Surface water basins
- Swimming pool water
- Circulating cooling water
- Surface water monitoring
Frequently Asked Questions
What is the difference between MT-110ZT, MT-110ZL and MT-110ZX?
All three share the same measurement performance (0–14 pH, ±0.1 pH, 0.01 pH resolution) and differ in mechanical configuration and installation form, allowing the right variant to be selected for the mounting arrangement on site. A stainless steel housing version is also available for demanding environments.
Does the sensor provide both digital and analogue output?
Yes. Each sensor provides an RS485 Modbus RTU digital interface and a 4–20 mA (adjustable, 3-wire) current output, so it can connect to modern data loggers and legacy PLC inputs alike.
Is temperature compensation included?
Yes. The sensor measures temperature over 0.00–40 °C with 0.1 °C resolution, enabling automatic temperature compensation of the pH reading.
How often does the electrode need calibration?
Calibration interval depends on water chemistry and fouling rate. The sensor is designed for easy calibration, so routine verification can be completed quickly during normal site visits.
Can it be permanently submerged?
Yes. The housing is rated IP68, which supports continuous submersion in the monitored water body.










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