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Backpacker Mosquito Repeller

Backpacker Mosquito Repeller

SKU: MS436-125

In stock


Quick Overview

The Thermacell Backpacker Mosquito Repeller effectively repels mosquitoes by creating a 15-foot zone of protection.

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Utilizing the same camping gas canisters (not included) that backpackers and campers likely have in their bag already, the compact and lightweight Backpacker Repeller is an essential piece of gear. It's also ideal for use while fishing, gardening, hunting, around the backyard, and more.


Color Red
Digital Pins Color N/A


Customer Reviews

Not impressed doesn't work as it is suppose to be... Review by VALENTIN
It takes a while for the vapor to work, it does not put out enough so that you can stray far away (more than 5" ) from it to be protected. The slightest breeze renders it ineffective. It does use very little fuel. It keeps going out! No flame = no repellent. I was really hoping it would work. (Posted on 6/24/2019)
It alright, it only works in some condition Review by LUISA
There was a slight breeze in the air, and that repellent smoke just drifted off into the atmosphere. Mosquitoes were literally landing on the thermacell and seemed unfazed. We ended up getting g a nice smoky fire going and the mosquitoes finally settled down.
Later in the night the breeze died down and the thermacell seemed to do a much better job of keeping the mosquitoes away. I was able to use it while setting up my tent, and it was definitely working.
It's not a miracle product, however if you're headed somewhere with lots of mosquitoes, it can be a really nice supplement to keep the 'skeeters from sucking you dry! (Posted on 6/24/2019)
Thermacell is indeed a mosquito killer Review by SEYMOUR
I've tried everything (citronella candles, mosquito rub/spray on products, wrist bands, netting, and high frequency repellents)... Nothing worked until the amazing Thermacell repellent! Simple to use, the Thermacell unit allowed my backpacking friend and I to play cribbage, in the space between our tents, without a single mosquito in sight! Even better, there was no sound or irritating smelll from the unit; only a barely noticeable waft of smoke. (Posted on 6/24/2019)
I love it 5 star Review by HENRIETTA
Well I bought some fuel and came home and did like another reviewer said, let it run for a few seconds to purge the line and you also have to screw it down tight. It worked fine. I know Thermacell will work on mosquitoes because I have several hand held ones.

I purchased several more when the prices dropped. I noticed several people said that they don't work. Hey it works for me, I am loving it. (Posted on 6/24/2019)
Works very well in a tent. Review by Andys
First off. If you realize the shortcomings of a system that requires a somewhat still air area to be effective. You won't be let down. 2 weeks ago, I went camping at a lake and the mosquitos had got a late start. They were atrocious. Maxi deet and headnets were the norm. My wife had left the door to our tent open and when we went to turn in for the evening? Dozens of dehydrated mosquitos anxiously waiting our arrival. I started up the Thermacell and went back to the fire pit for about 15 minutes. When I returned to the tent? They had all evacuated the area. So does it Work? Heck yeah it works. Outside in a somewhat windy situation, I wouldn't expect it to be that effective. But sitting in my treestand or ground blind, I am confident I won't be table fare for the little vampires. (Posted on 6/24/2019)
This is the one you want Review by KRISTOPHER
This unit uses exactly the same mats the standard Thermacell units use. I do wish it was a couple ounces lighter, but hey, at just 4oz it's worth it. In combination with Permethrin treated clothing and some concentrated Deet for backup, you should be bite free. I'm one happy camper! (Posted on 6/24/2019)

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Supplier Policy

Product can be returned if the following occurred:

1. Product delivered is not in accordance to the order.

2. Returns are accepted on damaged products.

3. Product can be returned after a week of acquisition by reporting to [email protected]

4. Warranty would depend on supplier’s provision.

Shipment days:

1. A week to thirty days shipment dependent on supplier.

Backpacker Mosquito Repeller
  • Runs on a backpacking stove fuel canister (not included)
  • Fuel efficient: up to 90 hours of run time on a 4 oz canister and up to 360 hours on a 16 oz canister
  • Fuel canister must be pressurized self-sealing (iso)butane and propane fuel mix (product will not function with 100% propane)
  • Lightweight, minimalist design that shaves ounces and inches out of your pack (114g/4.0 oz). Compact and portable (97mm H x 50mm W x 67mm L).
  • Dependable performance up to an elevation of 7,000 feet
  • No spray and no mess. Scent-free and DEET-free.
  • Usage Tips: Do not attempt to use with refilled canisters, Allow gas to flow for 5 seconds before clicking the piezo ignitor, and Only compatible with valves designed to the EN417 specification
  • Package contains: 1 Backpacker Repeller, 16 hours of repellent - 4 repellent mats lasting 4 hours each, and 1 water-resistant travel bag. Requires camping gas canister (not included)





Active ingredient:

D-cis/trans allethrin

Assembly Details:

No assembly required




2.7" x 2" x 3.9" (LxWxH)



Model Number:


Rubber Armor:



1 Year Satisfaction Guarantee

Weight (Kg):


Zone Check:


Zone of Protection Size:

15 Feet


Where can I use Thermacell Mosquito Repellent?

Thermacell Mosquito Repellent product works well in outdoor areas where there is minimal air movement, such as decks, yards, and campsites. For best coverage in still air, place the unit close to the ground. This allows repellent to spread over a maximum area.  Thermacell products are not intended for indoor use.

How often do I have to change Thermacell Repellent Mats?

A Thermacell Repellent Mat should be replaced when it turns white. Each mat lasts for up to 4 hours of continuous use.

How should I store my Thermacell when not in use?

Store your Thermacell in a cool, dry place away from heat sources.  You can put it in a plastic bag to keep dust and dirt out of it.  Always be sure to make sure your Thermacell is working properly if it has been stored for a long period of time.

How often do I have to change Thermacell Fuel Cartridges?

Thermacell Fuel Cartridges last up to 12 hours of continuous use and should be changed when empty.

When I installed a new mat, I noticed that the bottom of the old mat was a dark brown color, almost as if it had burned. Should I be concerned?

No. It is normal for a used mat to be dark brown on the bottom and almost white on the top.

My Thermacell Repeller worked for a while, but now it is not working. What should I do?

The fuel supply may be empty. If a replacement fuel cartridge is needed, please turn the unit off and replace the fuel cartridge as shown in the product's instructions. 

If replacing the fuel cartridge is not required, please turn the on/off switch to the on position and let the gas flow for 2 minutes before hitting the start button. This will purge the appliance and often corrects the problem.

If the product still does not function correctly after trying the above steps, please contact customer service so we can work with you on a repair, replacement, or refund (receipt required for refund).  

I followed the directions for starting the unit. It got hot, but it did not keep the mosquitoes away. What should I do?

Check to be sure that the Repellent Mat has blue color left. If not, replace the pad with a fresh one.

If the wind is blowing, place the unit upwind so that the wind blows over it first, then the area you want to protect. That way, the wind will carry the repellent to where you want it.

Can I stop and start the unit or do I have to use it all at once?

You can turn the unit on and off at will. Please allow 10 to 15 minutes for Thermacell to reach maximum effectiveness. You can use a mat until it turns completely white. 

How do I know the Thermacell unit is working?

An orange glow on the top of the device indicates that the Thermacell Repeller is on.

My Thermacell device is not working correctly at high elevations. What can I do?

Unfortunately, most fuel-powered Thermacell Mosquito Repellers will not work well at higher elevations. At altitudes above 4,500 feet (above sea level), most units become difficult to start and run due to lower air density.
Thermacell Radius has no elevation limitations, and the Thermacell Backpacker also operates at higher elevations (up to 7,000 feet).  

If you are affected by this altitude product limitation and have no use for your Thermacell at lower elevations, you may return the product for a full refund. Email [email protected] or call toll free 1-866-753-3837 for instructions.

When should I turn on my Thermacell product?

Thermacell will take 10 to 15 minutes to reach maximum effectiveness. Please plan accordingly.

Can I use Thermacell when it is windy?

In breezy weather, place the unit upwind of your location so that the repellent is carried by the wind into the area you want to protect.  Thermacell may be less effective on very windy days, although mosquitoes aren't typically out when it is very windy.

Should I see smoke coming from the unit, should I be concerned?

In normal operation, a small amount of smoke may be visible coming from the Repellent Mat.

Can I use Thermacell in the rain?

Do not expose appliances or mats to rain. Their effectiveness may be diminished.  If your Thermacell device does gets wet, please ensure it is dry inside and out before your next use.

How large of an area does one Thermacell unit protect?

Thermacell Repellers are effective for an area up to 15 x 15 feet (225 square feet), the size of an average deck or patio. You may use more devices to protect larger areas.

How do I clean a Thermacell Repeller?

Wipe down with a damp rag. Never submerge in water or cleaning solution.

Is Thermacell effective when I am walking?

Technically, Thermacell is designed to be used on a flat, stationary surface.  However, customers have told us that Thermacell is very effective while walking their dog and cutting grass, for example.

Can I use my Thermacell mats for multiple usages? (I.e. If I use a mat for one hour, can I use it again for another three hours?)

Yes, you can use Thermacell Repellent Mats for a period of time less than four hours and they will still be just as effective.  If there is going to be a significant amount of time between usages (several days +), we typically suggest that you keep the mats in their foil packaging or in a sealed plastic bag between uses.

Can I bring my Thermacell on a passenger airplane when I travel?

You cannot bring Thermacell Fuel Cartridges on a passenger aircraft. We typically suggest that you bring your Thermacell Repeller and the mats with you, but purchase the Fuel Cartridges at your destination.  You can also ship the product to your destination in advance of your arrival.  Thermacell products are sold in over 30 countries throughout North America, Europe, Africa, and Australia; and are available throughout the United States and Canada.

Should I operate my Thermacell differently when it is cold out?

For best results in weather between 40 and 50 degrees fahrenheit, elevate the top of the appliance (end with view hole) one inch while operating so appliance is at a tilt.

Will Thermacell spook game?

Many outdoorsmen use Thermacell and report that it does not spook game.  The repellent in Thermacell is a copy of a natural repellent found in chrysanthemum flowers, which is a natural smell in nature.  

How should I store and/or dispose of fuel-powered Thermacell products?

Storage: Store unused mats in a cool, dry place inaccessible to children and pets. Store mosquito repeller and fuel cartridges in a cool, dry place away from sources of heat. 

Disposal: If cartridge is empty or for used mats: Do not reuse empty packaging, wrappers or cartridges. Do not puncture or incinerate empty cartridges. Place in trash or offer for recycling if available. If cartridge is partly filled or for unused mats: Call your local solid waste agency for disposal instructions. Never place unused mats down any indoor or outdoor drain.