The CHEMetrics® CHEMets® Dissolved Oxygen Comparator (C-7518) is a precision round comparator used to visually assess trace levels of dissolved oxygen. Designed for use with the K-7518 Dissolved Oxygen CHEMets® Visual Test Kit and R-7518 Refill, this comparator features distinct pink color standards corresponding to oxygen concentrations ranging from 5 to 180 parts per billion (ppb).

Engineered for low-level dissolved oxygen detection in industrial, environmental, and lab settings, the round comparator ensures consistent and reliable test interpretation.

Product Highlights:

• Ultra-Low Range Detection: Color standards from 5–180 ppb for trace oxygen analysis


• Color-Coded Precision: Pink gradient standards offer clear, accurate readings


• Compatible Format: Designed for use with R-7518 and K-7518 CHEMets® kits


• Round Design: Easy-to-use format improves visibility and usability in field or lab environments


• Versatile Use: Ideal for sensitive process monitoring and environmental water testing