Can this sensor work with an ESP32 and esphome?

Hello! It can be used with ESP32 and esphome, it's just that we don't have example test code at the moment. Buyers need to have a certain ESP32 application coding foundation, test and write code by themselves.

Can the probe be fully submersed? And if so, for how long? Indefinitely?

Hi! The TDS probe and lead are made of waterproof material and can be immersed in water, but the cable interface and signal transfer board are not waterproof, please use it with caution. Please refer to the "Connections and Examples" section in the Wiki of this product below: http://www.cqrobot.wiki/index.php/TDS_(Total_Dissolved_Solids)_Meter_Sensor_SKU:_CQRSENTDS01

Is the sensor able to be plumbed into water line? a number of tds sensors will directly fit in a 1/4" push connect fitting.

Hi! The probe and lead of the TDS sensor are made of waterproof material, which can be inserted into the water pipe and installed in the 1/4" push connection fitting, but make sure that the water temperature in the water pipe does not exceed 55 degrees Celsius, because the probe cannot be used in water above 55 degrees Celsius. Please. Refer to the "Connections and Examples" section in the following Wiki of this product: http://www.cqrobot.wiki/index.php/TDS_(Total_Dissolved_Solids)_Meter_Sensor_SKU:_CQRSENTDS01

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CQRobot Ocean: TDS (Total Dissolved Solids) Meter Sensor Compatible with Raspberry Pi/Arduino Board. for Liquid Quality Analysis Teaching, Scientific Research, Laboratory, Online Analysis, etc.

CQRobot Ocean: TDS (Total Dissolved Solids) Meter Sensor Compatible with Raspberry Pi/Arduino Board. for Liquid Quality Analysis Teaching, Scientific Research, Laboratory, Online Analysis, etc.

Product ID: 313857551

Details

Brand
CQRobot
Current rating
4 Milliamps
Item weight
0.05 Kilograms
Material
Silicone
Style
Modern

⚡3.3V-5.5V wide voltage input

💧Waterproof probe for durability

📏0-1000 ppm TDS measurement range

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£21.15

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Description

💧 Measure purity like a pro—never miss a drop of data!

COMPACT EFFICIENT - Low power consumption (3-6mA) with a sleek 43x32mm module size.
PLUG PLAY SIMPLICITY - Effortless Arduino & Raspberry Pi integration—no soldering needed.
PRECISION YOU CAN TRUST - 16-bit ADC compatibility ensures accurate TDS readings within ±10%.
VERSATILE VOLTAGE RANGE - Operates seamlessly from 3.3V to 5.5V for broad controller compatibility.
DURABLE WATERPROOF PROBE - Engineered for reliable liquid quality analysis in any environment.

The CQRobot Ocean TDS Meter Sensor is a professional-grade, Arduino and Raspberry Pi compatible device designed for precise liquid quality analysis. Featuring a wide voltage input (3.3V-5.5V), waterproof probe, and analog output compatible with 16-bit ADC modules, it measures total dissolved solids in water from 0 to 1000 ppm with ±10% accuracy. Ideal for scientific research, teaching, and online monitoring, this compact sensor delivers reliable, plug-and-play performance with minimal power consumption.

Specifications

ASIN	B08KXRHK7H
Best Sellers Rank	#59,586 in Computers ( See Top 100 in Computers ) #856 in Single-Board Computers
Brand Name	CQRobot
Current Rating	4 Milliamps
Customer Reviews	4.4 4.4 out of 5 stars (229)
Item Weight	0.05 Kilograms
Manufacturer	CQRobot
Material Type	Silicone
Maximum Supply Voltage	5.5 Volts
Measurement Accuracy	Plus/Minus 10% F.S. (25 Degree Celsius)
Model	CQRSENTDS01
Mounting Type	Flange Mount
Output Type	Analog Voltage
Part Number	CQRSENTDS01
Sensing Distance	83 Centimeters
Specific Uses For Product	liquid quality analysis, teaching, scientific research, laboratory, online analysis
Style Name	Modern

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