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Description Take the guesswork out of knowing when to change your Reverse Osmosis (R.O.) membrane with the TDS-4. This pocket "pen-style" device measures the Total Dissolved Solids (TDS) in water. Ideal as an accessory to a reverse osmosis system, this device allows the user to monitor the performance of an R.O. system and to determine when it is time to change the R.O. membrane. Tech Specs Range: 0 - 9990 ppm (mg/L) Resolution: 0-999: 1 ppm; 1000-9990 10 ppm (indicated by a 'x10' icon) Accuracy: +/- 2% Battery life: 1000 hours of usage ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Farenheit) EC-to-TDS Conversion Factor: NaCl (avg. 0.5) Power source: 2 x 1.5V button cell batteries (included) (LR44 or equivalent) Dimensions: 14 x 2.3 x 1.5 cm (5.5 x .9 x .55 inches) Weight: 34g (1.2 oz) In the Box 1 x TDS-4 Meter
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🇺🇸 Ship from USA · On Agora since 2025
$26.49