Features:

• 100% Brand new and high quality
• The  TDS meter tester can be used in: water purifiers and filters, food  (vegetable,fruits) & drink quality monitoring, pools and spas,  aquariums, hydroponics etc.
• Hold function: Saves measurements for convenient reading and recording.
• Auto-off function: Turns off meter after 10 minutes of non-use to conserve batteries.
• Press "TEMP" button can shift temperature meter between fahrenheit degree and centigrade degree.
• Measures  Range: 0-9990ppm, with a resolution of 1ppm. From 1,000 to 9,990ppm,  the resolution is 10ppm, indicated by drinking x 10image, factory  calibrated.
• Applicable  industries: water laboratories, CDC, the aquaculture industry,  hospitals, swimming pools, household tap water quality testing.    
  

Specifications:

• Shell Material: Plastic
• Main Color: Yellow, White ,Gray
• Range: 0~9999ppm
• Accuracy: +/-2%
• Battery: 2 x 1.5v LR44 Button Cell Batteries (Included)
• Size: Approx. 15.5 x 3 x 1.6cm
  

Please refer below standard for testing water

• 0~50ppm --------- High Purity Water
• 50~100ppm --------- Pure Water
• 100~300ppm --------- General Pure Water
• 300~600ppm --------- Fouling
• 600~1000ppm --------- Poor Taste Water,Fouling
• Above 1000ppm --------- The water is not suitable for drinking
  

Package Included:

• 1 x Water Quality Tester
  

Note:

• Please allow 0~1cm error due to manual measurement.Thanks!
• Photos will be slightly different from different display screen.