
Just what the ecologist ordered to ensure a healthy pond for fish and plants! The "Pond Test Kit" includes pH level test; it will also tell you the pond's Ammonia, Nitrite and Nitrate levels. It provides a broad read on the status of the fish pond and lily pad home. Of course, you can use it as part of a science project, tracking down pollutants and explaining pond ecology!! Simple to use, with full instructions.
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89437 POND TEST KIT |
For all of life's back and forths or up and downs, like those creepy bat wings in our favorite Halloween displays. This new gear motor was made for the Saturn people, to run a rear wiper assembly, but now it can oscillate in your window display, kinetic sculpture, robot or clever invention. Operates on 12VDC at 1.5A (no load). Stall current is 7A. Has a 3-pin power connector (blue=pos, brown=ground, and ignore the black). The output shaft is 1-3/4" long OA x 6mm dia, and partially threaded. Oscillates approx 2 times per second. The whole magilla measures 6-1/2" x 6-3/4" x 5-1/8".
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39223 WIPER MOTOR |
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