CL‑X41 Multi‑Functional Water Quality Tester Pen 4‑in‑1 Water Analyzer for pH Free Chlorine CL ORP and Temperature

CL‑X41 4‑in‑1 Multi‑Functional Water Quality Tester Pen

This CL‑X41 4‑in‑1 water analyzer can measure pH, Free Chlorine(CL), ORP and Temperature simultaneously. Equipped with green backlit LCD display, it shows multi‑group test data clearly even in dim‑light environments.

Built‑in automatic temperature compensation function effectively offsets temperature influences and delivers stable and reliable measurement results. It supports data hold function to lock readings for easy recording, and manual calibration for higher test accuracy.

Powered by 4 pieces LR44 1.5V batteries, no charging required, convenient for outdoor and on‑site water testing. Compact pen‑shaped structure is lightweight and easy to carry, perfect for field inspection.

Specifications

• PH: Range: 0‑14.00pH; Resolution:0.01pH; Accuracy: ±0.05pH
• ORP: Range: ±990mV; Resolution:1mV; Accuracy: ±2mV
• CL (Free Chlorine): Range:0‑4ppm; Accuracy: ±0.1ppm
• Temperature: Range:0‑60℃ /32‑140℉; Resolution:0.1℃/0.1℉; Accuracy: ±0.5℃
• Display: Green backlight LCD screen
• Power Supply: 4 × 1.5V LR44 batteries
• Net Weight: 109g
• Product Dimension: 4242189mm

Widely used for swimming pool, spa, hot spring, aquarium, drinking water and hydroponic water quality inspection.

Bullet Points

✅ 4‑in‑1 multi‑parameter tester: tests pH, Free Chlorine(CL), ORP and Temperature ✅ Green backlit LCD screen, clear reading under dark surroundings ✅ Automatic Temperature Compensation reduces measuring deviation ✅ Data hold & manual calibration function for precise detection ✅ Battery‑powered design, great for onsite & outdoor water test ✅ Lightweight portable pen‑style, easy to operate and store ✅ Ideal for pool, spa, aquarium, drinking water, hydroponics