The PC102 2-in-1 residual chlorine tester delivers fast, accurate dual detection of free CL2 residual chlorine and pH value, an essential portable water quality monitor for swimming pools, hot tubs and spa water maintenance. Equipped with a stretchable long probe cord and color-coded analog dial, it eliminates inaccurate color-comparison test strips, showing intuitive ideal/low/high value zones for instant judgment.
It covers a chlorine measuring range of 0–3.0ppm and pH 5.5–9.0 with stable ±0.1 precision, matching standard pool water monitoring requirementsAlibaba.co…. Made of corrosion-resistant ABS shell with ergonomic handheld grip, it runs on a single AAA battery with low power consumption for long-term daily use.
No complicated calibration or extra reagents needed—just submerge the dual metal probe into water to get readings in seconds. Compact lightweight design with built-in probe storage slot for easy carry and storage. Perfect for residential pool owners, commercial aquatics operators and water care workers to balance water chemistry and avoid skin irritation from unbalanced chlorine levels.