Gun Safe Dehumidifier Electric, Dehumidifier for Gun Safe Dryer, Plug in Gun Safe Heater, 360° Heating Circular Air with Built-in Fan
Condition: New
Buy Now, Pay Later
As low as
$9
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
30-day refund / replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
20 left in stock
Arrives
Saturday, Apr 18
Features
- Save Your Guns - No sticky triggers, just crisp steel, smooth mechanisms. Our gun safe dehumidifier actively circulates warm air inside your safe, raising the internal temperature just enough to disrupt moisture buildup before it starts, which repels rust and preserves both function and value.
- Dual-Action Defense: Heat + Active Airflow = Total Moisture Control- Most dehumidifiers just sit there ours fights back. While traditional heating rods rely solely on passive convection, our gun safe dryer combines precision heating with an integrated silent fan to force moist air out through door gaps and seals. Shielding guns, ammo, documents, and heirlooms from ruin.
- Set It & Forget It: True Maintenance-Free Protection- Theres no refills, no moving parts to replace. Simply plug it into any standard outlet, route the cord through an existing or drilled hole, and switch it on. From that moment forward, it runs silently 24/7. Perfect for busy owners, collectors.
- Effortless Installation in Minutes - Feed the power cord through a pre-drilled hole (or make one with a hand drill), plug it in, and position the unit on the floor or shelf. Its compact profile fits almost any safe layout without blocking access or shelves. And because it draws less power than a bulb, youll never worry about energy costs making it cheaper and far more effective than disposable silica packs.
- Compact for Gun Safes (3.511 cu ft) - At only D*H:3.34*4.13 inches, it tucks neatly into small pistol safes or larger vaults alike.
Brand: Martronic
Floor Area: 3.34 Square Inches
Color: Black
Special Feature: Compact Safe Dehumidifier, Gun Cabinet Dehumidifier with Bult-in Fan, Safe Dehumidifier, Safe Dryer, Safe Heater See more
Capacity: 11 Cubic Feet
Tank Volume: 11 Cubic Feet
Product Dimensions: 3.34"D x 3.34"W x 4.13"H
Recommended Uses For Product: Gun Safe
Included Components: 1X Manual, 1X Safe Dehumidifier, 1X Wire Connectors
Item Weight: 1.3 Pounds
Floor Area: 3.34 Square Inches
Other Special Features of the Product: Compact Safe Dehumidifier, Gun Cabinet Dehumidifier with Bult-in Fan, Safe Dehumidifier, Safe Dryer, Safe Heater
Capacity: 11 Cubic Feet
Tank Volume: 11 Cubic Feet
Wattage: 16 watts
Operation Mode: Continuous
Voltage: 110 Volts (AC)
Item Dimensions D x W x H: 3.34"D x 3.34"W x 4.13"H
Item Weight: 1.3 Pounds
Recommended Uses For Product: Gun Safe
Brand Name: Martronic
Included Components: 1X Manual, 1X Safe Dehumidifier, 1X Wire Connectors
Model Name: gunsafedehumidifiers
Model Number: safe dehumidifiers
Warranty Description: 1 Year Warranty
Part Number: safe dehumidifiers
Item Type Name: Safe Dehumidifier
Color: Black
Material: Aluminum
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Apr 18
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
So far so good! I’ve been using it for a couple of days in my safe and the change is noticeable. Humidity went down 10% in just 1 night. Temperature the same, went all the way to 80 degrees. I wasn’t optimistic when I saw this product out of the box. It is small, quiet and you barely can feel the air going out of the fan but, it’s effective! And my safe is triple the size recommended for the product.
...
show more
Reviewed in the United States on March 11, 2026 by Jose
Had a traditional rod in my safe 18" and I wasn't happy with the numbers I was seeing so decided to try this out. I was hesitant at first with it being constantly on, but I love it. I'm running perfect temp and humidity now in 72x42 safe. Can't hear it at all. Solid aluminum casing, pick a spot and forget about it, very easy. Works better than I imagined. Price point was hardly more than standard rod options.
...
show more
Reviewed in the United States on February 23, 2026 by Kayla Mom
The first one I received appeared to be a returned item as the cord was not wound up like a new unit would be. I plugged it in an my counter and noticed that the fan did not spin. It would just move about an 2 degrees then stop. I left it on the counter to test and after about an hour the unit was really hot to the touch and the fan was still not turning. I applied for an exchange and returned the faulty unit. The replacement arrived and didn't appear to be a used item. The fan spun immediately like I expected. I placed it in my safe in my garage and within a day got the internal to 64 to 65 degrees. It now fluctuates between 65 to 69 where it used to fluctuate between 58 to 60. It also lowered the humidity. I attached a screenshot showing the change as recorded from my Govee remote temperature and humidity sensor in the safe. I am really happy with the unit once I received a new and not used/broken unit. I really like that it doesn't need silca gel packets that have to be replaced or refreshed.
...
show more
Reviewed in the United States on February 5, 2026 by Bamsch
This Martronic electric gun safe dehumidifier takes a more active approach than traditional heating rods. Instead of relying only on passive warmth, it combines low-level heating with a built-in fan to circulate air inside the safe. The goal is simple: raise internal temperature slightly to reduce condensation and push moist air toward door gaps or seals. Performance: When powered, the unit produces gentle warmth and noticeable air circulation. The integrated fan helps move air rather than letting heat simply rise. This active airflow design can be more effective than passive rods alone, especially in humid environments. It runs quietly and is designed for continuous 24/7 operation. Size & Fit: The compact dimensions make it easy to position on the floor or a shelf without blocking storage space. It’s rated for safes between roughly 3.5–11 cubic feet, making it suitable for small to mid-sized setups. Ease of Use: Operation is straightforward — plug it in and leave it running. There are no refills or maintenance tasks, which is a major advantage over silica packs or rechargeable moisture absorbers. Major Limitation – Power Cord Access: The biggest drawback is installation. Many gun safes do not include a pre-drilled access hole for power cords. Even if a hole exists, it may not be large enough for the plug to pass through. For thick-walled safes, drilling a new hole is not practical and could compromise the integrity or warranty of the safe. Because this unit requires a standard power outlet connection, buyers must verify that their safe has an accessible and appropriately sized cord port. Without that, the device cannot be used inside the safe. Alternative Use: If your safe lacks cord access, this unit could still work in closets, cabinets, storage lockers, or other enclosed spaces where power is readily available. Value for Money: The price is reasonable for an electric, maintenance-free dehumidifier with active airflow. However, its usefulness depends entirely on whether your safe can accommodate the power cord. Moisture Indicator & Operation Clarification: This unit does not include a color-changing moisture indicator like silica-based desiccants. It does not physically extract water from the air. Instead, it works by gently heating and circulating air inside the safe to lower relative humidity and reduce condensation. Its effectiveness depends on some level of air exchange within the safe. If a safe is completely airtight, it will not actively remove trapped moisture — it simply reduces condensation risk through controlled warming. Overall Impression: This is an effective, low-maintenance dehumidifier for safes that already have proper cord access. Before purchasing, confirm that your safe has a power port large enough for the plug — otherwise, installation may not be possible.
...
show more
Reviewed in the United States on February 18, 2026 by Mark Tomlinson
Works great the really fan moves a lot of air
Reviewed in the United States on March 16, 2026 by Carla
Works awesome. Best money I ever spent Circulates the air perfectly Very impressed.
Reviewed in the United States on March 26, 2026 by Godzilla 2005
Moves air but does not generate heat well.
Reviewed in the United States on March 12, 2026 by Inspector Alpha
It’s very quiet and seems to keep it dry in my gun safe. The biggest test will probably be in the summer when the humidity is high here in South Carolina.
Reviewed in the United States on February 19, 2026 by Amazon Customer