Solar charge controllers are essential for ensuring the smooth functioning of a solar panel and its battery. This model features full electronic protection and fully automatic operation with a PWM charge mode (SOC). The unit has large terminals, with considerable distance between each, as well as a digital LED display. Also features temperature compensation provided by the built-in external temperature sensor. This 20A model is suitable for charging 12V/24V DC Lithium batteries. Finally, there are two built-in USB slots, allowing you to charge a wide variety of devices.
Durable, anti-fog safety glasses that fit comfortably on any head size.
These goggles meet the ANSI Z87.1, 2010 High Impact standards.
Highly durable lab apron made of rubberized cloth is impermeable and easy to clean, perfect for all manner of lab or classroom experiments
Extra thick medical examination gloves - 60mil. Great for extra protection.
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.
Build a magnetic levitating train with this science fair project kit!
This kit includes several different projects that demonstrate the power of magnets!
Exciting magnet exploration for ages 8 and up!
This illuminated orbiter is great for demonstrations in the astronomy classroom!
Great tarantula specimen for the science classroom!
This project book and sample kit introduces you to shape-memory alloy technology!
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