Gravity: Analog TDS Sensor/ Meter for Arduino SF_Irons and Tips It also has a 26-pins

It also has a 26-pins GPIO pins brought out so you can connect a 26-pin Raspberry Pi GPIO cable underneath

**Note:** The pinout for this sensor is as follows: RED=Vcc BLACK=GND WHITE=SIG

Box size: 10" long x 2" wide x 2" high

The ring PTFE membrane is not easy to be clogged

Gravity: Analog TDS Sensor/ Meter for Arduino SF_Irons and Tips It also has a 26-pinsGravity: Analog TDS Sensor Meter for Arduino is an Arduino compatible TDS Meter Kit for measuring TDS value of the water, to reflect the cleanliness of the water. TDS meter can be applied to domestic water, hydroponic and other fields of water quality testing. You may also check Liquid Senser Selection Guide to get better familiar with our liquid sensor series. TDS (Total Dissolved Solids) indicates that how many milligrams of soluble solids dissolved