Akozon Digital LCD Water Quality Testing Pen Purity Filter TDS Meter Tester 09990 PPM Temp Portable (Blue)

Specifications: Condition: 100% Brand New Shell Material: Plastic Main Color: Yellow, Grey, Red as picture (Optional) Range: 0~9990ppm Accuracy: +/-2% Battery: 2 x 1.5V LR44 Button Cell Batteries (not included) Size: Approx. 15.5 x 3 x 1.6cm / 6.1 x 1.1 x 0.6in Package Weight: 68g Please refer below standard for testing water 0~50ppm --------- High Purity Water 50~100ppm --------- Pure Water 100~300ppm --------- General Pure Water 300~600ppm --------- The water will have incrustation scale 600~1000ppm --------- Bad Taste Water Above 1000ppm --------- The water is not suitable for drinking Package Included: 1 x Water Quality Tester (without battery) Note: 1. Please allow 0~1inch error due to manual measurement. Thanks for your understanding.