DO3 by Eco Sensors (a division of KWJ Engineering) is a rapid, simple to use device for checking the ozone concentration in water and is calibrated in mg/L (same as parts-per-million by volume in water). This small, battery-operated detector offers an inexpensive alternative to more costly inline monitors and requires no disposable reagents. DO3 is a practical, versatile detector for applications where the user needs to confirm that a system is ozonating the water, but does not need the “accuracy” and high cost of complicated analytical, inline dissolved ozone meters.
Size: 3.13 x.1.56 x 1.36 inches (79.5 x 39.6 x 34.5 mm)
Weight: < 2 ounces (49 grams)
Range: 0.00 – 2.00 mg/L (ppm in water by weight), display indicates to 5.00 ppm, accuracy above 2 ppm is not implied
Recommended water temp: 20 – 30 C (68 – 86 F)
Operating Temp: 0 – 40 C (32-105 F)
Accuracy: Within 20% when operated near room temperature.
Response Time: 5 minutes to take final reading, but >90% value available on display after 3 minutes.
Sampling Method: Gaseous Diffusion
Interferences: Dissolved Chlorine
Display: Digital LCD in increments of 0.01
User Interface: Single button
Tests: Self-Test on startup checks circuitry, alarms, battery, and operating temperature.
Calibration: Recommended at least 1x per year, or whenever accuracy of reading is critical.