Fast, simple waterquality comparator — plug in, test two samples, and see a visible difference in about 30 seconds. Key benefits Immediate comparison: Detect differences between two water samples in 30 seconds using visible color changes — helps you quickly judge whether drinking water appears clean or contains impurities. No technical setup: Pour water into two cups, insert the electrodes, turn on the power, and read the result. Ideal for nontechnical users. Safe to operate: Insulated plastic shell and an extended power cord reduce the risk of electric leakage and keep handling comfortable and secure. Durable sensing elements: FeAl (ferrousaluminum) electrode combination delivers strong conductivity, a clear response, longer service life, and resistance to oxidation and deformation. How it solves common problems Eliminates guesswork when comparing water sources (tap vs. filtered, bottled vs. local supply). Provides a fast visual check before drinking, cooking, or filling appliances. Portable and simple enough for spot checks where lab testing is impractical. Key features and specifications Function: Comparative waterquality tester that uses electrodeinduced visible color change to indicate differences between two samples. Operation: Place samples in two cups, insert electrodes, power on, observe within 30 seconds. Materials: Insulated plastic housing for safety; ferrousaluminum electrode rods for reliable conductivity and longevity. Safety: Extended power cord for comfortable positioning and reduced risk of contact with wet surfaces. Practical use scenarios Home: Compare tap water to water after a home filter to confirm filter performance before use. Travel and shortterm rentals: Quickly check unfamiliar water sources before drinking or preparing food. Smallscale site checks: Spotcheck water at wellheads, outdoor taps, or community collection points when laboratory testing isn't immediately available. What to expect in use Simple sidebyside comparison only — the device shows relative differences by color change; it is intended for quick visual screening rather than detailed chemical analysis. Easy handling: lightweight insulated body and extended cord let you position the device safely and compare two cups without special tools. Safe use recommendations Follow the simple steps: pour water into separate cups, insert electrodes, and turn on power. Keep the insulated housing dry and avoid touching electrodes while powered. Store electrodes dry and inspect periodically for signs of wear despite the corrosionresistant design. This device provides a fast, loweffort way to visually compare the quality of two water samples, with a safe insulated design and durable FeAl electrodes for repeatable, easytoread results.