Multimeter probe: sensION+ MM150 Portable pH Kit with sensor 5048 (or Similar Model):
We borrow a multimeter probe from the kind folks over at the water quality district whenever we can, but we would love to have one of our own. This instrument measures water temperature, pH, conductivity, salinity and more. It is an essential addition that would aid not only in verifying data collected by students, but also add several measurements to our baseline dataset. This an ideal instrument for our programs with older students, as well as our Stream Team. Item # LPV4048.97.0002.
$889

Full size is 250 × 226 pixels