THE PERFECT TOOL for diurnal dissolved oxygen studies or any short or long term DO monitoring. Advanced circuitry controls the high precision thermistor and Clark cell DO sensor.  The Midge is built for harsh field conditions and packed with features that make it easy to use.

AN EASY-TO-USE LCD SCREEN is operated by magnetic controls making the Midge incredibly user friendly. Just tap the housing to activate the monitor.  You can view live data, calibrate DO, and choose from one of four preset logging intervals.  Once at your monitoring site, enter the altitude or barometric pressure, and you’re all set!

SAVE TIME AND MONEY with the unparalleled value you’ve come to expect from Eureka. Why spend thousands on a full blown multiprobe when you only need a couple sensors? The Midge is designed to perform a specific task, so no external field display, no unnecessary sensors, no problem!