TDS Sensor and Meter

TDS meter is a water quality analysis device used to indicate the total dissolved solids in a solution (usually water). Since dissolved ionized solids (such as salts and minerals) increase the conductivity of a solution, a TDS meter can also measure the conductivity of a solution and estimate the TDS from that reading. TDS meters typically quantify this conductivity in microsiemens or ppm. There is tds meter with data logging function and tds sensor for ro system.

Sales contact

Pokcenser Automation Technology Co., Ltd

Mobile: +86 181 7515 5326

Email: info@pokcenser.com

Tel: +86-731-8229 9492

Get A Quote

PT6500 Online TDS Meter Controller

Features

Full-color screen, multi-line display
Data logging/trend chart display
Three sets of relay control switches
High limit, low limit, hysteresis control

Applications

General application
Drinking water
Environmental sewage
River and lake water quality
Food, tap water
Electroplating
Aquaculture
Modern agricultural planting

Request Price PDF Download

Advantages

4-20mA/RS485 multiple connection methods
Password protection to prevent non-staff from misoperation
Multiple automatic calibration functions

The online tds sensor 4-20ma output and RS485 communication is typical specifications of our tds meter with multiple ranges. TDS meter with automatic temperature compensation is ideal for reliable and accurate measurement of Total Dissolved Solids.

Resources

Datasheet

File Name	Time	Type	Download
PT6500 Online TDS Meter Controller	Sep 28, 2025	PDF

Technical Parameters

Model	PT6500
Temperature	-10～150 ℃(According to electrode)
Temperature Resolution	0.1℃
Temperature Error	±0.3℃
Temperature Compensation Range	0～150℃
Temperature Compensation	Automatically or manually
Current Output	2 channels of 4～20mA, 20～4mA, 0～20mA
Communication Output	RS485 Modbus RTU
Other Function	Data logging/Trend charting
Relay Control Contact	Three groups: 5A 240VAC; 5A 28VDC or 120VAC
Optional Power Supply	85～265VAC; 9～36VDC. Power: ≤3W
Working Environment	No strong magnetic field interference around except the earth's magnetic field
Ambient Temperature	-10～60℃
Relative Humidity	≤90%
Protection Level	IP65
Instrument Weight	1.5kg
Instrument Dimensions	235 × 185 × 120mm
Instrument Installation Method	Wall mounted

Need Help Choosing the Right Product?

Let our Sales Engineers identify the right solution for your application.

CONSULTATION

Please complete form below to request a quote for TDS Sensor and Meter.