1、Water Tester: Detect how many milligrams of soluble solids are dissolved in one litre of water and show the quality. 2、Simple Using: Waterproof probe with long wire enables easy operation, just plug and play, saving your working time. 3、Accurate Use: The TDS measuring range is 0-1000ppm, and the measurement has high accuracy, which is very reliable. 4、Wide Utility: Can measure conductive substances, can test water quality in domestic water and hydroponics as well. 5、Good Material: Mainly made of high quality PCB, has excellent durability for long term use. <p class="wang-edit-text"><p class="wang-edit-text">Item Type: TDS Sensor ModuleMaterial: PCBFunction: Water conductivity sensor. Wide Voltage Operation: 3.3~5.5VOutput Signal: 0~2.3VWorking Current: 3~6mATDS Measuring Range: 0~1000ppmModule Interface: XH2.54-3PElectrode Interface: XH2.54-2P<style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x TDS Sensor Module1 x Waterproof TDS Probe1 x Analogue Sensor Line