Gravity Analog TDS Sensor Meter for Water Purity

The Gravity: Analog TDS Sensor / Meter for Arduino allows, using a TDS pen, the measurement of the TDS value, which indicates how many soluble solids are dissolved in one liter of water and serves as an indicator of water purity. Unlike expensive professional TDS meters, this device is a cost-effective alternative to measure the TDS value. The meter is waterproof, making it ideal for applications in water quality analysis and hydroponics. 

Features: 

• Good compatibility output: 0~2.3V analog signal output, compatible with 5V or 3.3V controller 
• AC excitation source: effectively prevents the polarization of the probe 
• Waterproof probe 
• Easy to use: Arduino-compatible, easy connection, plug and play without soldering 

Documentation: 

• DFRobot Forum
• DFRobot Wiki

Technical Details: 

• Manufacturer: DFRobot 
• Manufacturer-SKU: SEN0244 
• Signal transmission board 
• Input voltage: 3.3~5.5V 
• Output voltage: 0~2.3V 
• Operating current: 3~6mA 
• TDS measurement range: 0 ~ 1000ppm 
• TDS measurement accuracy: ± 10% F.S. (25°C) 
• Module interface: PH2.0-3P 
• Electrode interface: XH2.54-2P 
• TDS probe 
• Number of pins: 2 
• Total length: 83cm 
• Connection interface: XH2.54-2P 
• Color: Black 
• Other: Waterproof probe 
• Dimensions: 42 x 32mm 
• Weight: 35g 

Scope of Delivery: 

• 1x Gravity Analog TDS sensor meter for water purity   
• 1x Waterproof TDS probe 
• 1x 30cm Gravity 3pin Analog Sensor Cable PH2.0 to XH2.54