Page 7 of 24
V2.0
I.
Introduction
Formaldehyde (HCHO) is one of the most common, poisonous substances found in daily
life and industry. The HAL-HFX205 handheld Formaldehyde meter is a compact personal
monitor
that can provide a rapid indication of hazardous airborne formaldehyde levels at the
touch of a button.
The HAL-HFX205, based on reliable electrochemical sensing technology, features directly
display of the formaldehyde concentration in ppm, and is easy to use. A short, low-
resistance diffusion pathway with a built-in pump enables a rapid reaction time.
Low power design allows long operation time. Exceptional linearity and stability allow easy
and very long intervals between calibration checks.
The external digital temperature and
humidity sensors or pressure sensor, if applicable, allows compensation or correction for
accurate measurement. A USB port provides capability of downloading stored data and
possibly continuous, real-time monitoring of the environment remotely.
The HAL-HFX205 Formaldehyde Monitor is designed for use in a wide variety of
applications such as furniture, floor boards, wall papers, paint, gardening, indoor decoration,
construction, dye stuffs, paper manufacture, hospitals, pharmaceutical, medical, food,
cleaning, synthetic resins, textile treatment, horticulture, and cosmetics.
