Features:
This equipment can be used for the measurement of general household water quality. 
The TDS value can reflect the cleanliness of water and can be applied to water quality testing in the fields of domestic water and hydroponics.
In general, the higher the TDS value, the more lysate is contained in the water and the more unclean the water.
0~2.3V analog signal output, compatible with 5V, 3.3V two control systems.
The excitation source is an AC signal, effectively preventing probe polarization.
Waterproof probe for long-term immersion in water.
For Arduino compatible, easy to connect, plug and play, no soldering required 

Specifications:
Material: metal
Color: As Shown
Wide voltage operation: 3.3~5.5V 
Output signal: 0~2.3V 
Working current: 3~6mA 
TDS measurement range: 0~1000ppm 
Module interface: XH2.54-3P 
Electrode interface: XH2.54-2P 
Number of probes: 2 
Overall length:  (Approx)60cm 
Connection interface: XH2.54-2P 
Size: (Approx) 42*32mm 

Package Included:
1 PC x TDS signal adapter board 
1 PC x Waterproof TDS probe 
1 PC x Analog sensor line 

Notice: 
TDS probes cannot be used in water above 55 °C. 
The TDS probe should not be placed too close to the edge of the container, as it will affect the display. 
The head and lead of the TDS probe are waterproof and can be immersed in water,
but the connection interface and the signal adapter board are not waterproof. Please pay attention to use. 

Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 0.5-2 cm differences due to manual measurement.