Features Collects temperature and humidity 3 selectable channels Can be used indoors or outdoors Temperature range: -20°C to 60°C (-4°F to 140°F) Humidity range: 20% – 95% RH Transmission range: 30m (98ft) Water-resistant case Wall-mount option Requires 2x AAA batteries (Not Included) Description Explore Scientific ST1003H Wireless Temperature and Humidity Sensor is a three channel […]

Features 32mm aperture brings in lots of light so you can see more. 8x magnification makes objects appear eight times larger. Great tool for both terrestrial and celestial viewing. Sliding optical tube makes it easy to focus. Description The National Geographic 8×32 Sky & Nature Scope is the perfect companion for exploring both terrestrial and […]

Description Alpen Binocular Tripod Adpater For the outdoor enthusiast who tires of holding binoculars up to the eyes, the Alpen Binocular Tripod Adapter is the ticket to a better experience and longer viewing in the field. While this adapter is designed to work with Alpen binoculars that have a narrow bridge, it works with any […]

Features Variable polarizing filter Individually adjustable image brightness Made from highly parallel optical glass Black anodized aluminum housing 2 “filter thread on both sides Dust cover included Description Universally applicable variable polarizing filter with 2 “filter thread . This variable polarizing filter allows continuous adjustment of image brightness . This is very helpful to strong […]

Features Variable polarizing filter Individually adjustable image brightness Made from highly parallel optical glass Black anodized aluminum housing 1.25″ filter thread on both sides Dust cover included Description Universally applicable variable polarizing filter with 1.25″ filter thread. This variable polarizing filter allows continuous adjustment of image brightness. This is very helpful to strong contrast differences […]

Features Dark-Sky filter Contrast increase in aurora & deep-sky photography Reduction of stray light from street lights, for example Wide-angle shots of the starry sky, time-lapse shots Blocks yellow light, not possible with image editing Black anodized aluminum housing 77mm filter thread for photo lenses Construction height only 4mm (Slim) Suitable for wide-angle lenses Made […]

Features 1.25 “linear polarization filter Socket with 1.25 “filter thread Also suitable for Lunt Herschel wedges Description Simple linear 1.25 “polarization filter. This simple polarization filter is suitable, for example, for use on the Lunt Solar Systems 1.25″ white light Herschel wedge (0558211). CA Residents: Prop 65 WARNING(S)

Description Whether you’re looking to delve into the details of our solar system or explore inspiring deep sky treasures, the versatile FirstLight series has an observing package that will fit your individual needs. Each of the combinations in this new line comes complete with all of the essentials: a telescope, a sturdy mount, an eyepiece […]

Features German silent movement and components, high sensitivity and precision Radio-controlled time via WWVB in the United States, Canada and Mexico Flat glass cover for perfect viewing and easy cleaning Diameter 25 cm Specs Item Number RAC1001CM3000 Mounting type Wall Mount Dimensions 24.7 x 24.7 x 4.7 cm Alarm clock No Battery (1) AA Battery […]

Features 3x Magnification Carry Case Included Lanyard Description Be ready whenever adventure calls with the lightweight National Geographic Compact Binocular. Sized to slide easily into a backpack or bag, this binocular is a great companion for hiking, observing wildlife or getting great views from the stands at your favorite sporting event. It offers a 30mm […]