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Introducing Membrane Caps for Extech DO700 Portable Dissolved Oxygen Meter from Extech - the perfect solution for accurate and reliable dissolved oxygen measurements. These caps come in a set of six, ensuring you always have one on hand for replacements or spares. Designed specifically for use with the Extech DO700 Multifunction Water Quality Meter, these membrane caps deliver precise readings that are essential for monitoring water quality in various applications such as aquariums, pools, rivers, lakes, and other bodies of water. The durable and easy-to-use design makes these membrane caps an excellent investment for anyone who demands the best in dissolved oxygen measurement technology. With Extech's commitment to quality and innovation, you can trust that your purchase is backed by a reputation built on precision and reliability. Don't compromise on accuracy - choose Membrane Caps for Extech DO700 Portable Dissolved Oxygen Meter from Extech today!