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Kendrick Astro Instruments

Welcome to Kendrick Astro Instruments, recognized worldwide for innovation and quality low voltage heater and power products. Kendrick Astro Instruments have been in the low voltage heater business for over 25 years pioneering the use of heater "systems" to control misting, dew and frost on optics, camera lenses, telescopes lenses and mirrors as well as cold weather performance of cold sensitive electronic devices.


Red Dot Finder Heaters

Free Red Dot Finder Heater with orders of $100 or more - While Supplies Last

That's right, it's a freeby! We have a huge overstock on these heaters and we're in a giving mood. Just order any Kendrick products and if your shopping cart has $ 100.00 we'll include a Kendrick Red Dot Finder Heater in the shippment. If you don't use a Red Dot Finder, then please pass it along to your astro-friends that do. The "fine-print" is simple... any order with worth of $ 100.00 merchandise (shipping excluded) gets a free heater! More Info

Premier Heaters

Premier Heater Sale Event - 15% OFF on ALL In-Stock (while supplies last) Premier Brand Heaters! Sale Ends ??? (when supply runs low).

Our Premier Brand heaters are the best heaters made and they produce considerably more heat than any other brand. Our FireFly Brand heaters are great too, but the Premier Brand heaters use a different heating element that is able to produce considerably more heat. You don’t always need the extra heat, but there are going to be times that you are glad to have it.

The weather for the entire continent has been horible for most of you and we know that many of you are still waiting for skies to be "normal" again. Don't let the gift of clear skies go to waste with a "dew problem" that has such an easy cure. Don’t delay! Get the best heater ever made and, while supplies last, save some money too!

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Classic Ring style filter

Clearance Sale - 20% to 50% OFF on Classic-Ring Style Solar Filers!

Get them before they're gone! Our "SF" style filters (with the built-in "Solar Finder") are now the crowd favorite, so we're clearing out the Classic-Ring style.

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DigiFire FX and FX-PRO

NEW>>> The All New DigiFire Controllers are here!

In Stock!

The new DigiFire Controllers are now the 3rd generation of the DigiFire line of Dew Controllers. They have the same great features as the previous generation and we've added some great new features starting with a Graphic OLED Dsiplay. At a single glance you can see program settings for all 4 independantly controlled heater ports are set, as well as voltage level. The FX-PRO model adds Temperature regulation and the new graphic display shows outside air temperature and optics temperature.

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Not Just Dew Control! Power Management and Cord Management Too!

Kendrick delivers power for your other devices where it's needed with fewer cords.

  • Our new DigiFire Controllers handle 15 Amps of power and with 2 DC Accessory Ports, it can power other equipment too!
  • We have 3 models of Dew Controllers with built-in 8V DSLR Power Supply… Micro-D, DigiFire FX and DigiFire FX-PRO. Just add our DSLR Battery Adapter and power your Canon or Nikon DSLR from the controller.
  • Add our 12V USB Hub to reduce the number of wires even more. Why a 12V Hub? Because you already have 12V up there! We even add a small heater to keep the Hub dry inside. It can even be powered from your DigiFire Controller!
  • Our new LINX Panel is small, lightweight and gives you 6 places to plug in your power hungry devices. This panel is designed to mount atop your telescope!

DSLR Battery Adapters


Nikon EP-5A Battery Adapters now available for Nikon D3100, D3200, D5100, D5200, D5300, Coolpix P7000, P7100 & P7700 & P7800 - NOW IN STOCK!

Canon DR-18 Battery Adapters now available for Canon 750D, 760D, 77D, Rebel T6i, T6s, T7i - NOW IN STOCK!

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12V Powered USB 3.0, 7-Port Hub

NEW>>> NEW 12V Powered USB 3.0, 7-Port "Charging" Hub Now Available

The new USB 3.0 Hubs have arrived! Now In Stock! Order yours today!

Why use a USB Hub? There are an impressive number of USB devices: imaging camera, guide camera, focuser, filter wheel, adaptive optics, flats panel, etc. Each has its own USB cable and by using a USB Hub up on the telescope, you have only 1 cord that needs to come down from the mount.
Why a Powered Hub? Unpowered hubs just don't work. Even if you are lucky and have a mount with built-in USB, chances are, it's not powered. Without a powered hub, your computer becomes the power source and the computer is always quite a distance away. Power and signal (data) just doesn't have a fighting chance through those long cables.
Why 12V? Because 12V is what you use to power almost all of your devices! CCD Camera, Dew Controller, Focus Motor, etc. In most cases, a 12V power source is already up on the telescope. This eliminates 1 more cord that can get snagged when the mount slews.
12V Power Sources? You can power the Hub with your DigiFire 8/12 Controller OR a Power Panel. Placing thoses devices ON THE TELESCOPE means that you can eliminate 1 more cord that won't need to come down from the telescope. Of course, you can also use the traditional cigarette lighter cord too.

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LINX Power Panel

NEW>>> LINX Power Panel

Ditch the Cigarette Lighter Plug!

At only 5.5" X 3.5" X 1.5" and only 7 ounces, it is small enough in size/weight to mount atop your telescope and delivers up to 30 Amps to your power hungry devices. Also available with a built-in 8V DSLR Power Supply. Just add our DSLR Battery Adapter.

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Micro-D Controller

Micro-D Controllers - NOW IN STOCK!

The new design is perfect for "light-duty" grab-n-go photography or visual observering. Weighing only 30 grams (1.6 oz) it is the ultimate in portability. Ideal for:

  • Small refractors (4" dia or less)
  • Camera Lenses
  • Newtonian secondary mirror dew control.
AND..... the Micro-D will also power your Canon or Nikon DSLR! Just add one of our Camera Battery Adapters. The same small 12V battery now powers your Dew Heateras AND your DSLR Camera. Never worry about short camera battery life again!
More Info

Power Panel

NEW!! Imaging Power Panels. Now available with Anderson Power Pole connectors!

Chosen by the editors of SKY & TELESCOPE as
one of the "Hot New Products for 2014"!

Our Imaging Power Panels are designed
specifically for astrophotographers!

A compact connector panel to provide a centralized power point for all your imaging equipment and a means for cable management.

CCD and DSLR imaging versions available.

Built in 12 volt, active 7 port USB hub with internal dew heater, 8 vdc DSLR power supply (depending on model), 4 cigarette lighter sockets, illuminated power switch, volt meter, dust and moisture covers on all ports. Provide power to your mount, CCD or DSLR camera, Motorized Focuser, Dew Control System, Guide scope. Mount it on your telescope or mount and have only two cables coming from the power panel, one to your computer and one to your battery!

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Kendrick Sun Finder

Sun Finder

IN STOCK! Very easy to install.

Our New Sun Finder is an excellent product for easy solar finding and centering in your telescope eyepiece. The finder projects a solar dot onto the white target which can be viewed either from the from the front of the finder or through the cut out on the back.

More Info


Heater Systems for DSLR Cameras
DSLR Camera-Cozy
Are you a night-time astro or nature photographer? Are you having trouble with dew and frost on your lenses and camera body? We have the solution!


NEW Split Ring Heaters

For Newtonian Secondary Mirrors
Split Ring Heaters
An effective anti-dewing solution for exposed Dob and Newtonain mirrors.


Bahtinov Focusing Masks

for Telescopes, Auto Guiders, & DSLR Cameras
Bahtinov Focusing Masks
Precision focusing aid. A “must have” for astrophotographers. learn more...

Clearance Bargains

Super discount products
Overstocked and discontinued products at super discount prices learn more...

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Phone 416 762 7946  Fax 416 762 2765
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