Konvio Neer Digital TDS Meter for Water Testing

<p>Your RO filter has no way of telling you it has stopped working — the water still looks and tastes fine while the membrane quietly gives up. This pocket TDS meter reads total dissolved solids in seconds, so you know whether your purifier is doing its job, whether the tanker water is safe, and whether that ₹2,000 annual service was actually needed.</p><p>It is slept-on because most homes replace filters on a calendar instead of on evidence. At ₹299 it carries <strong>4.3 ★ from over 53,000 ratings</strong> on Amazon.in, and also works for aquariums and hydroponics.</p>