Residual Chlorine Tester, Digital LCD Display, Handheld, Low
Residual Chlorine Tester, Digital LCD Display, Handheld, Low Concentration Only, Residual Chlorine of The Pool, Colorimetric Precise Measurements: This residual chlorine tester accurately measures chlorine levels in water, ensuring optimal sanitation and safety. Convenient Design: Compact and portable, the tester features a digital LCD display and user-friendly buttons for easy operation. Attached with detection reagents. First, calibration with the water...