PH Sensor YSI ProPlus Smog Monitor Use it to stay current

Use it to stay current as Hach releases new test methods and chemistries

making it more efficient

Provides a visible check of pump flow rate during air sampling

N95 Mask is a disposable particulate respirator designed to help provide reliable respiratory protection of at least 95 percent filtration efficiency against certain non-oil-based particles

PH Sensor YSI ProPlus Smog Monitor Use it to stay currentMeasure pH quickly and easily with the 1001 sensor. The 605101 pH Sensor can be used with the YSI Professional Plus Multiparameter Handheld Instrument. Requires Cable Probe Assembly. Item is heat packed in the winter months. Shipment must be made via 2 day or next day carrier during that time information.