Pen DO Meter

This Pen DO Meter is specially designed to meet the demands of rapid on-site detection. Featuring a pen-type structure, it allows users to move flexibly between different working sites. The instrument consists of two core components: a sensing and detection module, and an electronic signal processing module.

The sensing unit adopts a membrane-covered dissolved oxygen probe based on the polarographic principle. With an oxygen permeable membrane, the probe delivers a fast response and ensures reliable measurement accuracy. The electronic processing unit adopts a highly integrated circuit system, which is compact in size and ultra-low in power consumption, supporting long-duration field operation.

In terms of human-machine interaction, the device is equipped with a dot-matrix LCD panel with backlight function. Operators can easily read all measurement data even at sampling points during nighttime or in dim environments. The optimized screen layout simultaneously displays dissolved oxygen concentration and real-time temperature readings, greatly improving on-site working efficiency.

Beyond basic measurement functions, the pen DO meter is fully optimized for ease of use. Its pen-shaped design fits easily into pockets, tool bags or life jacket compartments. It is particularly suitable for aquaculture patrol inspection, surface water environmental assessment, quick screening of industrial discharge outlets, sewage treatment process monitoring, and serving as a compact backup measuring solution for laboratory use.