The Kendrick Dew Remover System has been the industry standard for effective dew removal and prevention on all optical surfaces where moisture condensation is a problem for many years now. Kendrick is the original innovator of these systems and we continue to lead the marketplace with our innovative product design and concepts. Our system has heaters for almost all the optical components used in amateur astronomy, several controllers with different levels of functionality and is the most sophisticated on the market.

Repeated field testing on many types of optical surfaces under many conditions and our thousands of satisfied customers has proven the effectiveness of our product over and over. Amongst other things, our system has these attractive features:

1. Energy efficiency. Our controllers use almost zero power except for that required to illuminate the LEDs (which is VERY little!). Rather than use energy, our controllers actually conserve battery power by having programmable settings to control the heaters for precise application of heat. The systems are programmable with variable duty cycle, temperature variance, dewpoint variance or set temperature, depending on which controller you use.
2. It is lightweight.
3. High quality build. We use only the best quality components in our system, whether it be controllers or heaters. We do not compromise on the integrity or performance capabilities of our product.
4. It will keep every optical surface you are using free of moisture in many different circumstances.
5. High quality circuit boards in our controllers. We use "double sided" circuit boards. This gives our heater jacks extra strength to help prevent the solder breaks that will occur on single sided boards from the stress and strain of plugging and unplugging heaters.

Kendrick Dew Controllers
Premier Digital Controller Top of the Line!	DigiFire 10 Temperature Sensing 100% digital, 6 output	DigiFire 7 100% digital 4 channel control, 6 output	Standard Dual Channel Controller Dual Channel control, 4 output	MICRO FireLite Controller Tiny, Lightweight, Effective and Inexpensive!

Controller feature comparison
Adobe PDF Format	feature_chart.pdf	22.9KB

PREMIER DEW CONTROLLER

THE #2002 PREMIER DIGITAL CONTROLLER
OUR TOP OF THE LINE CONTROLLER!

We are pleased to announce the introduction of our new digital PREMIER POWER CONTROLLER. It is the most advanced controller of its type available with many new features not seen before. For you astro imagers out there, the Premier controller is completely RFI (radio frequency clean) free.

Since the introduction of the Kendrick Dew Remover System in 1994, we have had many requests for a more advanced controller. These customers have wanted more control over the heaters on their telescopes. We have taken it one step further and have provided a platform that will offer centralized power management of telescope accessories and dew prevention heaters.

Now, various devices, accessories and heaters can be powered and controlled from one central device. Now, not only heaters, but accessories such as Dobsonian cooling fans, digital setting circles, illuminated eyepieces, Telescope motor drives, Astro Systems Dewguard secondary mirror heaters, motorized focusers etcetera can be powered from the controller (Some plug modification may be required).

When used for dew prevention, the PREMIER POWER CONTROLLER is programmable over a number of different parameters explained under PROGRAMMABLE FUNCTIONS.

The controller's many new features are:

1. Built in low voltage cut-off (a Kendrick standard!) Outputs 1 through 5 only.
2. RFI (radio frequency interference) free. Absolutely necessary if you are into digital imaging!
3. LED display.
4. LED brightness control.
5. Temperature/Humidity sensing and control on two outputs.
6. Your choice of Fahrenheit or Celsius operation.
7. 6 outputs (2 of which are constant on).
8. LED power on indicators for outputs 1 through 5.
9. Outputs 1 through 4 are individually programmable.
10. Numerical Keypad entry of operating parameters for utmost control of your settings.
11. Remote control, programming and monitoring capability (optional software purchase required).
12. Sensor readouts to show ambient air temperature, optic temperature, dewpoint temperature, humidity in %, battery voltage.
13. The ability to enable or disable outputs (output #6 cannot be disabled).
14. The ability to save up to 4 different configurations.
15. Mosfet transistors built on board (no voltage drops!) and on all outputs. Get the best possible performance out of your heaters!
16. A beautiful brushed stainless steel case.
17. An optional brushed stainless steel cradle that connects to your tripod or Dobsonian telescope.
18. Temperature sensors are calibrated in house by Kendrick.

The 2002 Premier Power Controller Package includes:

1. The controller itself
2. One temperature/humidity sensor for sensing ambient air temperature/humidity.
3. One temperature cable for sensing optic air temperature. Additional cables may be purchased.
4. A lanyard for hanging the controller.
5. An instruction manual.

PROGRAMMABLE FUNCTIONS
The Premier Controller is programmable in the following parameters:

1. Duty Cycle. Outputs 1 through 4 can be individually programmed to operate anywhere from 10% to 100% on.
2. Temperature variance. Outputs 1 and 2 can be individually programmed to operate within a user specified temperature variance (ie: 5º above air temperature).
3. Dewpoint variance. Outputs 1 and 2 can be individually programmed to operate within a user specified temperature variance (ie: 5º above dewpoint).
4. Set temperature. Outputs 1 and 2 can be individually programmed to operate at a user specified set temperature. This function is useful if you have a device that needs to kept at a specific temperature for optimal performance.
5. Outputs 1 and 2 can be programmed to mirror one another. For example, if output #1 has been programmed to operate at 7º above dewpoint, then output #2 would come on and turn off at the same time as #1.
6. Enable/Disable. Outputs 1 through 5 can be set to on or off at any time. This is useful if, for example, you are running fans to aid in cooling your optics and you want them shut off.
7. LED brightness. The LED Display can be set anywhere from a low setting for nightime use to bright for daytime use.

REMOTE CONTROL

Click to enlarge

We have developed software that will allow the controller to be programmed and monitored remotely from a PC. You have all the usual programming functions available to you and the software has an intuitive user interface that makes it easy to program and monitor the controller. The software will create a log file that can be imported into a spreadsheet program. This is useful should you have any reason or need to determine the operational functionality of the controller or heaters.

Downloadable upgrades for the software will be available on-line.

The software is an option and is not provided with the controller. We provide the necessary cable to connect the controller to your computer. You can extend the reach of the cable using a standard telephone extension cable.

System Requirements for this software are:

• PC with a Pentium-class processor with available COM port. Pentium 90 or higher processor recommended.
• Microsoft Windows 98 or later operating system. Microsoft Windows NT 4.0 requires SP3 or later.
• 24 MB of RAM (32 MB recommended).
• Hard-disk space required: 10 MB.CD-ROM drive.
• VGA or higher-resolution monitor; Super VGA recommended.
• VB6 SP5 runtime environment (included).
• Cross-over RS232 cable (included).
• Kendrick PREMIER POWER CONTROLLER

Premier Controller Remote Control Software - New Version 2.1!
Registered users are invited to contact us for an upgrade to this latest version of the software.

NOTE: This application requires the special crossover RS232 cable that is used to connect the controller to your computer. You can either order the cable from us (2002-RS232), or you can make up your own able using the pin-out description in the following diagram:

RECOMMENDED SETTINGS & CONFIGURATIONS
The PREMIER POWER CONTROLLER comes with a factory default settings of outputs 1 to 4 at 75% duty cycle and the temperature display in Celsius.

Temperature Variance: Initially use a variance of 5 to 7º F when programming outputs 1 or 2 to function at a temperature above ambient or dewpoint.

Premier Controller Users Manual & Remote Control Software Download.
Adobe PDF Format	Premier Controller Manual	464KB	Premier Controller Remote Control Software	464KB

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Kendrick Premier Dew Controller

DIGIFIRE 10 CONTROLLER

THE #2001-10 DigiFire 10 TEMPERATURE SENSING CONTROLLER
DIGITAL TEMPERATURE SENSING, 6 OUTPUTS Features & Specifications:

• 100% digital operation.
• RFI (radio frequency interference) free. Absolutely necessary if you are into digital imaging!
• 6 outputs.
• 2 outputs programmable for temperature sensing. Set these two outputs to keep your chosen optical surfaces anywhere from 1° to 10°C above ambient temperature. (Only one optic sensor is included with the controller. Ambient air sensor in included). The remaining 2 programmable outputs can be programmed to operate on duty cycle. Or, use all 4 on duty cycle.
• All four outputs are programmable in duty cycle if you choose, from 0 to 100% in 10% increments.
• Low voltage cut-off (a Kendrick standard!). Protect your battery from being to deeply discharged
• Run 12 VDC accessories or heaters from the 2 dedicated 12 volt outputs. For example, run cooling fans, computerized setting circles, DewGuard secondary mirror heaters etc.
• Firmware upgradeable.
• Pulse Width Modulation duty cycle control.
• Reverse polarity protection.
• Mosfet transistors built on board (no voltage drops!) and on all outputs! Get the best possible performance out of your heaters!
• Brushed stainless steel case.
• Really simple to use!
• Dimensions: 5.5" L x 3" W x 1" H
• 1 Year warranty, including sensors
• Temperature sensors are calibrated in house by Kendrick.
• Includes 1 ambient temperature sensor, 1 optic sensor and Velcro tab.

Includes a velcro attachment so that the controller can be attached to scope, tripod, etc. An optional lanyard (#2002-LNYRD) is also available for anyone preferring to hang their controller or protect it from scratches, dings and nicks.

DigiFire 10 Users Manual
Adobe PDF Format	DigiFire 10 Operating Manual	195KB

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Kendrick DigiFire 10 Controller

DIGIFIRE 7 CONTROLLER

THE #2001-7 DigiFire 7 CONTROLLER
DIGITAL 4 CHANNEL CONTROL, 6 OUTPUTS

Features & Specifications

• 100% digital operation.
• RFI (radio frequency interference) free. Absolutely necessary if you are into digital imaging!
• 6 outputs, four programmable, two at 12 volts constant.
• Each programmable output may be programmed individually in duty cycle from 0 to 100% in 10% increments.
• Low voltage cut-off (a Kendrick standard!). Protect your battery from being to deeply discharged.
• Run 12 VDC accessories or heaters from the 2 dedicated 12 volt outputs. For example, run cooling fans, computerized setting circles, DewGuard secondary mirror heaters etc.
• Pulse Width Modulation duty cycle control.
• Reverse polarity protection.
• Mosfet transistors built on board (no voltage drops!) and on all outputs! Get the best possible performance out of your heaters!
• Brushed stainless steel case.
• Really simple to use!
• Dimensions: 5.5" L x 3" W x 1" H
• 1 Year warranty.
• Includes velcro tab.

DigiFire 7 Users Manual
Adobe PDF Format	DigiFire 7 Operating Manual	182KB

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Kendrick DigiFire 7 Controller

STANDARD DUAL CHANNEL CONTROLLER

NEW! THE STANDARD DUAL CHANNEL CONTROLLER This controller has been introduced to replace our original, long standing Model VI controller. The Standard Dual Channel has a ton of new features but is really simple to use! As well, it can handle more power and use that power more efficiently! We are very excited about this newest addition to our Dew Remover System! NOW SHIPPING!

Features & Specifications: Rugged Plastic Case with modern styling. Zero to 100% heater control. Fused onboard. Auto Reset (no other dew controller on the market has this). On board protection from over current, over temperature, over voltage. LED overcurrent indication at both outputs. 10 amp capacity (5 amps per channel).* 6' detachable fused Power cord. Cord is fused at 7 amps. Reverse polarity protected. On/off switch (no other dew controller on the market has this). RFI (radio frequency interference) free. A critical feature for astro imagers! Pulse Width Modulation duty cycle control. 4 outputs, 2 for each control knob. LED Power on indicator for both outputs. Low voltage cut-off control with LED indication (a Kendrick standard!). Mosfet transistors built on board and on EACH output (no voltage drops!). Get the best possible performance out of your heaters! Velcro attachment. Parts included. 12 VDC operation. Dimensions: 4" x 3" x 1.35" (1.75" with knobs). 1 Year warranty * We have fused the power cord at 7 amps even though the controller is capable of amperages of 5 amps per channel (10 amps total). We do not recommend replacing the power cord fuse with a larger fuse as the power input socket is not rated for a higher amperage.

Item No.	Description	Price CAN	Click to add item to cart
Kendrick Twin Channel Controller

MICRO FIRELITE CONTROLLER

THE MICRO FIRELITE CONTROLLER

Our newest controller!

The MICRO FireLite Controller is the newest addition to our controller line and represents a new family of controllers and heaters for Kendrick. Designed for Astronomers and Astrophotographers who want the ultimate in lightweight, compact, Grab'n'Go gear. Ideal for use with small telescopes and DSLR Cameras.

Despite its small size, this controller is not small in its performance or build quality. It is not a cheap or flimsy controller. Well built and well thought out, it employs the same technology as its big brother, the DigiFire 7 but only in a much smaller package at a much lower price.

Why does it represent a "new family of controllers and heaters"? Due to the very compact design of this controller, we have had to go a totally new connector for the heaters. For this reason we have created a new heater line to go with this controller, the Micro FireLite Heaters.

Due to its size, the Micro FireLite does have some limitations. Those limitations are:

• It has a maximum load capacity of 1.5 amps.
• Room for two heaters only.
• The Micro FireLite heaters have a special connector that will allow them to connect to the Micro FireLite controller. Unless you purchase our special 2001-FL-ADP adapter cables, you can only use our Micro FireLite heaters with this controller. (See grey box below)

Can I use the Micro controller with my other standard Kendrick Heaters? ANSWER: Yes, but you will need to purchase our 2001-FL-ADP Micro to RCA adapter. IMPORTANT NOTES: These adapters can ONLY BE USED with KENDRICK HEATERS. Use with a competitors heater will void your warranty. When using Premier or FireFly heaters, you MUST make sure that the total amperage of your combined heaters does not exceed 1.5 amps. We provide an amperage table for our heaters here.

Features & Specifications:

• Extremely compact. 57mm L x 34mm W x 11mm H
• Weight (including power cord and plug)...60 grams.
• Incremental 20% duty cycle heater control. (ie: OFF, 20%. 40%, 60%, 80% 100%)
• Fused and reverse polarity protected.(a Kendrick standard!)
• 2 outputs.
• 1.5 amp capacity.
• LED Power on indicator.
• Low voltage cut-off control. (a Kendrick standard!)
• 12 VDC operation.
• One button control. Very Simple!
• Removable 6' (2 meter) power cable. (Fuse is in plug on power cable)
• 1 Year warranty

A CUSTOMER'S IMPRESSION OF THE MICRO SYSTEM
"I've used it on two evenings now during heavy moisture in the air out here on the 'WET' coast of BC. It works wonderfully! I no longer worry about any moisture on the objective of my Skywatcher ED-80 when using my Meade DSI-C or Canon 20D for taking pics. The size and ease of use are fantastic. Extremely high quality and well made. I highly recommend the Micro Firelite controller and heat straps!"
Dan L., Langley, BC.

FireLite Users Manual
Adobe PDF Format	MICRO FireLite Controller Operating Instructions	108KB

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Kendrick MICRO FireLite Controller

PREMIER HEATERS

We have heaters for virtually any optic used in amatuer astronomy and outdoor photography. As well, we have heaters for electronics to keep them functioning in cold weather.

The Premier Heater line is our flagship brand and our highest quality heater. They are built of the highest possible quality materials and the heaters are custom built to our electrical specifications. These are not off-the-shelf heaters! We use the best quality velcro, elastic and flex heaters available for this line. The cables are cold flexible down to temperatures of -40 and the cable housing is custom make for Kendrick to our specifications. Our competitors cannot make this claim.

Our heaters have been built to use only as much power as necessary and thereby not waste energy. They have sponge insulation and infa-red reflecting material on one side to help direct the warmth generated by the heaters into the optics. Because of this, less energy is needed to keep your optics moisture free.

Our heaters wrap around your optics, label side out and are held in place by elastic/Velcro attachments. Telrad and Rigel Finder heaters are held in place with an elastic band. The heaters for secondary mirrors, depending on which model you purchase, are either placed on the backside of the secondary and can be held in place by using the polyester batting found inside the secondary mirror holder (heaters #2016, 2017, 2018, DG-1, DG-2, DG-3) or will wrap around the secondary mirror stalk (heaters #2028 & 2028-S). The .965", 1.25" and 2" heaters are considered eyepiece heaters. The 1.25" and 2" are also heaters for certain camera lenses and binocular objectives. Larger camera and binocular lenses will, of course, require larger heaters. Newtonian Primary Mirror Heaters sit behind the primary mirror in contact with the back side of the mirror. Your mirror holder must be allow for removal of yor primary mirror to accomodate a primary mirror heater.

Below, we provide a breakdown of the wattage and amperage of most of the Premier Heaters we make. This will aid in choosing the correct controller for your system as your controller must be able to handle the amperage requirements of your heaters, no matter what controller setting you use. For example, if you set your controller to operate at 30%, the heaters will draw their full amperage 30% of the time. The other 70% of the time they will be off.

NOTE: Our competitors often quote what they consider the high power requirements of our Premier Heaters. It is important to note that the ratings quoted below are true if your controller is set to operate at a 100% setting. To clarify, if you set your controller to operate at 30%, the heaters will draw their full amperage, but only 30% of the time. The other 70% of the time they will be off. Also, these heaters are intentionally designed to generate more heat than our competitors heaters as they are designed to perform under ALL conditions.

Item No.	Description	Price CAN	Click to add item to cart
Kendrick Bino-viewer Heater Elements
Kendrick Optical Tube, Control Pad and Computer Heater Elements
HEATERS FOR NEWTONIAN TELESCOPES. For more information on these heaters, click here.
NEW Wrap-around Secondary Mirror Heater
S2, S3, S4 Secondary Mirror Heater Elements. For more information on these heaters, click here.
Split Ring Secondary Mirror Heater Element. For more information on these heaters, click here.
Dew-Guard Temperature Sensing, Secondary Mirror Heater Elements. For more information on these heaters, click here.
Primary Mirror Heater Elements. For more information on these heaters, click here.

FIREFLY HEATERS

Kendrick's new FireFly heaters are designed for the astronomer who requires a dew prevention system that is both economical in price and power. Although unable to perform up to the high standards as our original Premier brand of heaters, astronomers and anyone else requiring heated optics for dew prevention can depend on our FireFly heaters to perform under all but the most demanding observing conditions. Note that if your observing site gets temperatures that approach freezing on the nights you like to observe, you should consider the Premier line of heaters.

Having lower power requirements than our Premier heater line, these heaters will extend the life of your battery between charges. Using a different heater technology but operating under the same principle as our Premier line of heaters, these heaters will mildly disperse heat into your optics without compromising the figure of your telescope or camera optics.

As well, because of our unique manufacturing process, the FireFly heaters will direct their heat into your optics instead of losing it into the atmosphere. We have had these heaters independently tested for heat transmission and the resulting images below clearly show the effectiveness of our build technology. These heaters are very effective in directing most of the heat into the optics which is important if dew is to be prevented.

AN IMPORTANT NOTE: Some competing manufacturers of low wattage heaters make claims that their heaters, with half the wattage of our Premier line of heaters, will perform just as well as our Premier heaters, and at a much lower price! Well, this is true to a point but once you get down to temperatures approaching freezing, forget it, it just ain't gonna happen! You cannot escape the laws of Physics. Half the wattage means half the power, end of story. We make no such claims about our FireFly heaters. They do have their limitations.

The above image shows the outward facing surface of a Firefly heater.

The above image shows the inside, or optic heating side of a FireFly heater. This surface shows a +20º C difference from the outward facing surface proving the effectiveness of our manufacturing process in directing the heat into your optics.

We use high quality Velcro, elastic and connectors with these heaters. All the FireFly heaters come branded with our permanent, white identification label for easy identification in the field.

One year limited warranty. Warranty covers defects in workmanship and materials. Normal wear and tear are not covered. Tampering, misuse and abuse voids the warranty. See our return policy for a full explanation of our warranties and return policies.

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Kendrick FireFly Heater Elements

MICRO FIRELITE HEATERS

Kendrick's new Micro FireLite heaters are designed for use with our new MICRO FireLite Controller. They have the special connector that allows them to connect to the FireLite controller (shown in the image to the right). It is important to note that any anti-dew heater with a RCA connector (this includes our Premier and FireFly heaters) will not connect with this controller.

IMPORTANT! The maximum amperage capacity of this controller is 1.5 amps. What does this mean? Basically it means that you will have to choose your heaters carefully, otherwise you will end up blowing fuses. All the heaters offered in the FireLite line are 1.5 amps or less. If you want to use two heaters with the FireLite controller, you will have to make sure that the total amperage of the two heaters does not exceed 1.5 amps. The amperage of the heaters is shown in the chart below.

Like all our other heaters, the FireFly heaters will direct their heat into your optics instead of losing it into the atmosphere. We use the same construction methods and materials as our Premier and FireFly heaters. These heaters are very effective in directing most of the heat into the optics which is important if dew is to be prevented.

So where do these heaters and the MICRO FireLite controller excel? See the partial list below: