Pocket-sized TDS Meter

Model Number: TDS-4 Brand Name: TLead Key Specifications/Special Features: A TDS tester that's ideal for all water purification applications, drinking water testing, pools and spas, fresh water aquariums, hydroponics, and colloidal silverPerfect for both consumer or commercial useCarry one in your pocket at all timesThe smallest and lightest TDS meter on the marketSleek design is perfect for personal or consumer use

Advanced microprocessor technology

Hold function: saves measurements for convenient reading and recording.

Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries

Measurement range: 0-9990 ppm, from 0-999ppm, the resolution is in increments of 1ppm, from 1000 to 9990 ppm, the resolution is in increments of 10 ppm, indicated by a blinking 'x10' image

Display: large and easy to read LCD screen

Recommended for fresh water aquariums and aquaculture, horticulture and hydroponics, and pools and spas

Factory calibrated: our meters are calibrated with a 342 ppm NaCl solution, meters can be recalibrated with a mini-screwdriver

Range: 0 - 9990 ppm (mg/L)

Resolution: 0-999: 1 ppm; 1000-9990 10ppm (indicated by a 'x10' icon)

Accuracy: ±2%

EC-to-TDS conversion factor: NaCl (avg. 0.5)

ATC: built-in sensor for Automatic Temperature Compensation of 1 to 50°C (33 to 122°F)

Power source: 2 x 1.5V button cell batteries (included) (LR44 or equivalent)

Battery lifespan: 1,000 hours of usage

Dimensions: 14 x 2.3 x 1.5cm (5.5 x .9 x .55 inches)

Weight: 34g (1.2oz)