Heemang Pocket Tds Mtr 1-9990 Ppm Range

The HM Digital Heemang Pocket TDS Meter is a compact, factory-calibrated tester that puts accurate water-quality measurement in the palm of your hand. Measuring Total Dissolved Solids across a wide 0 to 9990 ppm range, it is an essential tool for anyone monitoring filtration performance, reverse osmosis output, or general water purity at home or on the job.

Accurate, Convenient Testing

TDS readings reveal the concentration of dissolved minerals, salts, and other solids in water, making this meter ideal for verifying that an RO system or filter is doing its job. By measuring TDS before and after a system, you can quantify exactly how much the equipment is removing and recognize when a membrane or cartridge needs replacing. The unit ships factory-calibrated with a 342 ppm NaCl solution and can be re-calibrated in the field with a mini-screwdriver. Built-in Automatic Temperature Compensation keeps readings accurate from 1 to 50 degrees Celsius (33 to 122 degrees Fahrenheit) so temperature swings do not skew your results.

Thoughtful features make day-to-day use effortless. A hold function freezes a measurement with a single beep for easy reading and recording, while an auto-off function conserves battery after 10 minutes of inactivity. Resolution is 1 ppm from 0 to 999 ppm and 10 ppm above that, indicated by an x10 icon on the display, so the meter remains precise across its entire range.

• Wide TDS range of 0 to 9990 ppm (mg/L)
• Factory-calibrated with 342 ppm NaCl; field re-calibration possible
• Accuracy of +/- 2% with built-in Automatic Temperature Compensation
• Hold and auto-off functions for convenient, battery-saving operation
• Runs on two included 1.5V LR44 button cells, roughly 1000 hours of use
• Pocket-sized at 6.1 x 1.25 x 1 inches with temperature display

The meter also reports temperature with 0.1 degree Celsius resolution, and at roughly 1000 hours of battery life on its included cells, it is ready for frequent use. Whether you are a homeowner checking your drinking water, an installer verifying a newly commissioned system, or a dealer demonstrating filtration results to customers in person, this HM Digital pocket meter delivers fast, dependable readings in a durable, portable package. It is the simple, trustworthy way to keep tabs on water quality wherever you go, and an indispensable companion for anyone serious about understanding what is in their water.