HANNA INSTRUMENTS Free Chlorine Ultra Low Range Checker Reagents, Pack of 25

The HANNA INSTRUMENTS HI-762-25 Free Chlorine Ultra Low Range Checker Reagents are high-quality, pre-measured chemical packets designed for use with the Free Chlorine Ultra Low Range Checker HC. These reagents enable users to achieve fast, accurate, and reliable measurements of free chlorine concentrations in water, providing a simple yet professional solution for water quality monitoring.

These reagents utilise the recognised DPD (N,N-diethyl-p-phenylenediamine) method. When added to a water sample, the reagent reacts with any free chlorine present, causing a distinct pink colour to develop. The intensity of this colour is directly proportional to the concentration of free chlorine. The compatible HI-762 Checker then photometrically analyses this colour change to deliver a precise digital readout.

Key Benefits & Features

• Pre-Measured for Convenience: Each HI-762-25 packet contains an exact, pre-measured dose of reagent, eliminating the need for messy powders, complicated measuring, or risk of user error. This ensures consistent, repeatable results every time.
• Fast and Accurate Analysis: The simple 'add and read' procedure allows for quick testing, with the digital checker providing accurate results directly in parts per billion (ppb), ideal for detecting very low levels of free chlorine.
• Ultra-Low Range Detection: Specifically formulated for the ultra-low range checker, these reagents are perfect for applications where precise, low-level chlorine monitoring is critical, such as in potable water, aquaculture, or delicate industrial processes.
• DPD Method Reliability: The industry-standard DPD method is known for its specificity to free chlorine, providing confidence that the measurement is not affected by combined chlorines or other interfering substances under normal conditions.

Supplied in a convenient pack of 25 individual reagent packets, this product offers a cost‑