Hanna Free Chlorine Checker HI701

Overview of the Hanna Free Chlorine Checker HI701

The Hanna Free Chlorine Checker HI701 is a compact digital colorimeter designed for accurate measurement of free chlorine in water. It provides laboratory-grade results in a handheld format and eliminates the guesswork associated with color comparison test kits. This tester is ideal for pool and spa maintenance, drinking water analysis, aquaculture, environmental monitoring, and educational laboratory use.

Features of the Hanna Free Chlorine Checker HI701

• Digital colorimeter provides precise free chlorine measurements without subjective color matching
• Uses an EPA-adapted DPD method for reliable and repeatable results
• High resolution readings suitable for low-level chlorine monitoring
• One-button operation with clear LCD readout for fast testing
• Compact and lightweight design for field or on-site testing
• Automatic shut-off to conserve battery life

Hanna Free Chlorine Checker HI701 Specifications

• Measurement Range: 0.00 to 2.50 ppm free chlorine
• Resolution: 0.01 ppm
• Accuracy: ±0.03 ppm ±3% of reading
• Measurement Method: Adaptation of EPA DPD Method 330.5
• Light Source: LED at 525 nm
• Detector: Silicon photocell
• Power Supply: 1 x AAA 1.5V battery
• Auto Shut-Off: After inactivity
• Operating Temperature: 0 to 50°C
• Dimensions: 81.5 x 61 x 37.5 mm
• Weight: 64 g

Applications for the Hanna Free Chlorine Checker HI701

• Swimming pool and spa water testing
• Drinking water chlorine verification
• Aquaculture and hatchery water monitoring
• Environmental and field water testing
• Educational laboratory demonstrations

What’s Included

• Hanna Free Chlorine Checker HI701 meter
• 2 sample cuvettes with caps
• Starter supply of free chlorine reagent packets
• AAA battery
• Instruction manual