Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Compatibility	Arduino UNO, Mega, Nano, ESP32
Input Voltage	3.3V - 5.5V DC
Output Signal	Analog 0-2.3V
Measurement Range	0-1000 ppm
Accuracy	±10% Full Scale
Probe Cable Length	1.5 meters
Operating Temperature	0°C to 50°C
PCB Dimensions	45mm x 30mm x 15mm
Net Weight	25 grams
Probe Material	Stainless Steel 304

5 reviews

Anonymous

Apr 02, 2026

Rating: 4/5

Good value but needs calibration

The sensor works well once calibrated. Out of the box readings were a bit off, but after adjusting with standard solution it is accurate. Cable could be longer.

Anonymous

Mar 03, 2026

Rating: 5/5

Perfect for school project

Used this for a science fair project on water quality. Easy to wire and plenty of tutorials online. Highly recommend for beginners.

Anonymous

Feb 17, 2026

Rating: 3/5

Probe feels fragile

Electronics work fine, but the probe coating seems delicate. Be careful when cleaning. Readings are stable though.

Anonymous

Feb 08, 2026

Rating: 5/5

Solid sensor module

Clean analog output signal. No noticeable noise in my setup. Good build quality on the PCB side.

Anonymous

Jan 19, 2026

Rating: 5/5

Great for hydroponics project

Worked perfectly with my Arduino UNO. Calibration was straightforward using the provided code examples. Monitoring my nutrient solution is much easier now.

5 FAQ

Q: What calibration solution do you recommend?

A: We recommend using a standard 1413ppm or 342ppm TDS calibration solution for best accuracy.

Q: Can this measure saltwater conductivity?

A: It can measure conductivity in saltwater, but the ppm reading is calibrated for fresh water. Use conductivity mode for saline solutions.

Q: Is there a library available for this?

A: Yes, you can find open-source libraries on GitHub compatible with Arduino IDE for TDS sensors.

Q: Does this work with 3.3V logic boards?

A: Yes, the input voltage supports 3.3V to 5.5V, making it compatible with most 3.3V microcontrollers.

Q: Is the probe waterproof?

A: The probe is designed for submersion in liquid, but the PCB module itself is not waterproof. Keep the board dry.

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