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Quantum Light Sensor

Three cosine corrected Quantum sensors (spaced 4.6in/11.7cm) average their readings to minimize the effects of small shadows such as below…

Fiedl Scout Red/Far Red Meter

Plants use the Red/Far Red light ratio to determine how crowded they are, and grow tall or full accordingly. Previously,…

Field Scout Quantum and Foot-Candle Meter

Quantum sensors measure light energy at the specific wavelengths plants actually use for photosynthesis. Research indicates that older lux and…

This light meter can read any of Spectrum?s light sensors, which come with 6ft/2m cables. Just plug in a sensor,…

Conductivity Electrode Replacement

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6.58" ID Orion Full Aperture Solar Filter

A must-have for safely observing the sun without damaging your eyesOptical glass filter fits snugly over your telescope's aperture to…

Full Page Magnifier 2x

Size 7" x 11", Power 2X, Bulk…

G11 Mount - 60 lb Capacity

SPECIFICATION: R.A. / DEC. AXIS All machined aluminum and stainless steel, black anodized. All stainless steel hardware. One 3.750' diameter needle thrust bearing. One…

G11 Mount + GEMINI GO-TO - 60 lb Capacity

SPECIFICATION: R.A. / DEC. AXIS All machined aluminum and stainless steel, black anodized. All stainless steel hardware. One 3.750' diameter needle thrust bearing. One…

Explorer 25x100 Large-Aperture Binocular

It's Like Exploring a Whole 'Nother Night Sky It's the same night sky, all right. But with our jumbo Explorer binoculars,…

Rings 125mm

Par de anillos 125mm para tubo Guia. El Par de anillos para tubo guia tiene un diametro interior de 125mm. Estos anillos…