This affordable but accurate and easy-to-use particle meter will measure the number of particles present in any liquid, given in Parts Per Million (PPM). It also has a second function which allow you to measure the temperature of a liquid in Celsius. It can be used in water purifiers/filters, food (vegetable, fruits) & drink quality monitoring, pools and spas, aquariums, hydroponics, and much more. The unit also has a hold function that saves messages for convenient reading and recording, as well as an auto-off function that will turn the unit off after 10 minutes of inactivity in order to preserve battery power. Measures from 0-999ppm, with a resolution of 1ppm, up to 999. From 1,000 to 9,990ppm, the resolution is 10ppm, indicated by an x10 image on the display. Includes leather carrying pouch with clip. Essential for the lab and classroom, useful for most chemistry instructors, some students.
Large nitrile exam gloves designed and manufactured for superior protection against viral, bacterial, and certain chemical hazards.
This set includes twenty (20) N95 NIOSH approved respirators.
These ear plugs are made of self adjusting foam that provides a comfortable, low pressure fit and excellent sound filtration.
These goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
These goggles meet the ANSI Z87.1, 2010 High Impact standards.
Extra thick medical examination gloves - 60mil. Great for extra protection.
A massive mounted set of 100 rocks and minerals found in the US,
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
This kit focuses on teaching children about electricity and how electronic devices work!
The Ball of Whacks is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!
Build a model green house and 9 other green energy-related devices with this great kit!
This magic bird defies gravity before your very eyes!
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