Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Input Voltage | 3.3V - 5.5V DC |
| Output Signal | Analog Voltage (0-2.3V) |
| Interface Connector | PH2.0-3Pin |
| Measurement Range | 0 - 1000 ppm |
| Accuracy Level | ±10% F.S. |
| Operating Temperature | 0°C - 50°C |
| Probe Cable Length | 1.5 meters |
| MCU Compatibility | Arduino, STM32, 51 Series |
| PCB Dimensions | 42mm x 32mm |
| Net Weight | 45 grams |
Anonymous
Mar 26, 2026
Rating: 4/5
Good sensor, needs calibration
Hardware is solid. You definitely need to calibrate it with known solutions to get accurate ppm readings. Good value for money.
Anonymous
Feb 19, 2026
Rating: 5/5
Reliable for education
Bought 10 for our workshop. All units performed consistently. Great for teaching water quality basics without breaking the budget.
Anonymous
Feb 13, 2026
Rating: 5/5
STM32 Compatible
I used this with an STM32F103 board. The 3.3V logic level works fine. Code examples online were helpful for getting started.
Anonymous
Jan 23, 2026
Rating: 5/5
Perfect for my hydroponics setup
Works exactly as described. Easy to interface with my Arduino Uno. The analog output is stable after warming up for a few minutes.
Anonymous
Jan 18, 2026
Rating: 3/5
Instructions lacking
The sensor works but the included manual is very basic. Had to search forums for calibration code. Otherwise functional.
Q: Can I use this with 5V Raspberry Pi?
A: The Pi uses 3.3V logic for ADC. You may need an external ADC chip like ADS1115 for best results to avoid damaging the GPIO.
Q: How often should I calibrate?
A: We recommend calibration every few weeks depending on usage frequency and the type of solution being measured.
Q: Is the probe submersible?
A: Yes, the probe is designed for liquid immersion, but the circuit board itself is not waterproof and should be kept dry.
Q: Can this measure saltwater?
A: It can detect high TDS in saltwater, but extreme salinity may exceed the 1000ppm range accuracy specifications.
Q: What is the maximum current draw?
A: The module typically draws around 5mA during operation, which is suitable for most microcontroller pins.
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