Hanna ULR Total Chlorine Portable Photometer-Meter Only - HI97761

Hanna HI97761 Ultra Low Range Total Chlorine Portable Photometer is a high-precision analytical instrument designed for accurate determination of total chlorine in water at very low concentrations. With a measurement range of 0.000 to 0.500 mg/L (as Cl₂), this advanced photometer is ideal for laboratory, environmental, industrial, and water treatment applications where precise chlorine monitoring is essential.

The instrument features a superior optical system incorporating a reference detector, a 525 nm LED light source, and narrow band interference filters, ensuring fast, stable, and highly repeatable results. Supported by an adaptation of EPA Method 330.5, it delivers reliable and compliant analytical performance across critical water quality testing applications.

With a high resolution of 0.001 mg/L and accuracy of ±0.020 mg/L ±3% of reading at 25°C, the HI97761 provides dependable measurements even at ultra low chlorine levels. The photometer requires no warm-up time, allowing immediate testing and improved workflow efficiency in both field and laboratory environments.

Designed for user convenience, the instrument includes a built-in tutorial mode that offers step-by-step guidance, reducing operational errors and ensuring proper test procedures. The CAL Check™ functionality allows users to verify instrument performance at any time, maintaining confidence in measurement accuracy.

The large 128 × 64 pixel backlit LCD display ensures clear visibility of results in all lighting conditions. Onboard memory can store up to 50 readings with date and time, supporting GLP compliance and data traceability for quality control processes.

Built for durability, the HI97761 features an IP67-rated waterproof and dustproof enclosure, making it suitable for harsh environments with operating conditions ranging from 0 to 50°C and up to 100% relative humidity. The compact and lightweight design (380 g) enhances portability for field applications.

Powered by three AA batteries, the photometer supports over 800 measurements without backlight, and the automatic shut-off feature helps conserve battery life during extended use. It accommodates standard 24.6 mm round cuvettes and is supplied as a meter-only unit, with reagents and accessories available separately.

Widely used in municipal and industrial water treatment, swimming pool monitoring, food and beverage processing, and environmental laboratories, the HI97761 ensures precise total chlorine measurement and supports regulatory compliance.

Enhance your water testing capabilities with Hanna’s advanced photometric technology, engineered for precision, durability, and ease of use in professional applications portable photometer