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Customer Reviews

5 in 1 Free Chlorine Meter CL2 Tester Pen Portable CL Temp Meter Swimming Pool Residual Chlorine Monitoring
$18
Measurement Range:
0.01-4.00ppm
Quantity:
Add to Cart
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Features
5-in-1 Free Chlorine Meter CL2 Tester Pen – Precision Pool Monitoring
Advanced Multi-Function Testing
– Measures free chlorine (CL2), residual chlorine, temperature, and more with a single compact device for comprehensive water quality analysis.
High-Accuracy Sensor Technology
– Features a premium electrochemical sensor for reliable, lab-grade readings (±0.05 mg/L CL2 resolution) with automatic temperature compensation.
Rugged & Portable Design
– Durable ABS housing with IP67 waterproof rating, shock-resistant casing, and ergonomic pen-style grip for on-the-go testing.
Fast One-Touch Operation
– Instantly displays results on a backlit LCD screen; no reagents or calibration needed—ideal for pools, spas, and industrial water treatment.
Long-Lasting Performance
– Includes replaceable AAA batteries and a low-power sleep mode for extended field use.
Trusted by Professionals
– Certified for NSF/ISO standards, trusted by pool maintenance teams, hospitality sectors, and water safety inspectors.
Bulk Order Advantage
– Direct factory pricing, wholesale discounts, and global logistics support for large-scale procurement.
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