CAT EYE Velo 9 Wired Bike Computer auspowers_batchtwo This short-range Hydrion pH Paper

This short-range Hydrion pH Paper is excellent for measuring pH solutions around neutral pH 7

Ideal for ages 8+

Mac OS etc( Not support Raspberry Pi/Linux/Android

and ROHS and CE certificated

The maximum length is 200cm

CAT EYE Velo 9 Wired Bike Computer auspowers_batchtwo This short-range Hydrion pH PaperCAT EYE Velo 9 Wired Bike Computer The newly designed Velo 9 is CatEye's entry level 9 function computer. The new, larger screen is even easier to read and set up is made simple with pre programmed tire sizes. Battery life up to three years. Weighs 28g. Product Features ALL YOUR FAVORITE STATS: Displays current, max, and average speed, total distance, trip distance, elapsed time, calories, carbon offset, pace arrow, and clock. DON'T SWEAT THE SMALL