This accurate and easy-to-use digital device features a pH meter (measures pH from a range of 0 to 14, with an accuracy rate of +/-0.1pH), thermometer (-50°C~70°C (-58°F~158°F)), and a particle meter (0~19990ppm, resolution of 10ppm). It can be used for laboratory or classroom chemistry experiments, or for various household needs, including water purifiers/filters, food (vegetable, fruits) & drink quality monitoring, pools and spas, aquariums, hydroponics, cosmetics/skin care, and much more. The unit provides a digital readout of the pH levels, temperature (in F or C) and particles in Parts Per Million, and features a protective cap. Essential for the lab and classroom, useful for most chemistry instructors, some students. Also includes a small screwdriver for regulating the trimmer. Note that this unit does not include the necessary buffer solution: see related products.
These ear plugs are made of self adjusting foam that provides a comfortable, low pressure fit and excellent sound filtration.
These goggles meet the ANSI Z87.1, 2010 High Impact standards.
This is a smart value 200 gloves box of Large Nitrile exam gloves.
Great premium general purpose KingSeal Nitrile gloves in size SMALL. Not for medical use.
These extra-large, powder-free, 5mil Nitrile Exam Gloves are designed and manufactured for superior comfort and protection.
This set includes three (3) N95 FDA registered and NIOSH approved and respirators.
This classic desk toy will keep you amused!
Discover a world of kaleidoscopic effects within this perfectly clear prism of the Light Crystal!
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
You don’t think recycling is cool? Get a look at this, we’re sure you’ll change your mind!
Create beautiful art with this amazing sun paper!
Build your own windmill generator kit by recycling a plastic bottle!
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