Turfgrass quality is visually evaluated by human assessors based on a scale of 1(the grass is dead) to 9 (the…
Measure and record Chlorophyll N measurements in just seconds with the SPAD 502 Meter - now exclusively available with or…
NEW! SPAD 502 Chlorophyll Meter featuring integrated data logger. Instantly measure and log chlorophyll content. Simply clamp the meter over…
Measure light level in Foot-Candles. This affordable light measurement solution displays immediate light level in terms of Fc (foot candle). Precision photo…
Add this awe-inspiring autoguider package to any imaging set-up and enjoy the results ShortTube 80mm refractor provides a wide field-of -view…
This 20mm eyepiece offers a wide field of view and superior optical performance at a bargain price Great eye relief so…
Finally, an easy-to-use, affordable autoguider for long-exposure astrophotography Uses a 1/2" format 1.3MP CMOS chip, with 5.2 x 5.2 micron pixels…
Dual Power Illuminated Jewelers Loupe: Power 10X & 20X Dia 20mm & 11mm 1 LED Per Lens Requires 3AG10 Batteries (Batteries are Included)…
Glass magnifier 2.5" diameter with bent platic handle. 3 power…
Glass magnifier 4" diameter with bent platic handle. 1.85 power…
Make a crazy robot that walks like a silly duckie! It's an awesome robotics scienci kit. Recommended for ages 8+…
Perform your own magic show! Amaze your friends and family with the 12 magic tricks included in this kit and…
Inserted into the telescope's eyepiece holder, this Barlow lens doubles the power obtained when an eyepiece is used alone. It…
Orion ShortTube 80-A Refractor Telescope Upgraded version of our popular ShortTube 80 refractor, configured for astronomical…
#126 2x Barlow Lens: An amplifying lens, the multi-coated #126 2x Barlow (arrow) doubles the powers of all eyepieces with…