The Thermacell E55B E-Series delivers 20-foot zone protection against mosquitoes without sprays, flames, or scented chemicals. This rechargeable repeller creates an invisible barrier using heat-activated repellent technology that keeps biting insects away from campsites, hunting blinds, and outdoor work areas.
What Makes This Different
Unlike traditional bug sprays that require direct skin application, the E55B creates a protective zone around the user through heat-activated allethrin cartridges. The rechargeable lithium battery eliminates the need for butane refills or constant fuel purchases. Independent testing confirms 96% mosquito protection within the 20-foot effective radius, matching the performance of DEET-based topical repellents without skin contact.
Key Features
- 20-foot radius protection zone covers 400 square feet of outdoor space
- 12-hour runtime per charge with USB-C rechargeable lithium battery
- Scent-free and DEET-free operation using EPA-registered allethrin repellent
- Compact 4.1 x 2.6 x 1.4 inch dimensions with 8.8-ounce total weight
- Weather-resistant construction rated for outdoor use in rain and humidity
- Silent operation with no fans, noise, or open flames
- Light blue housing with integrated battery level indicator
Field testing demonstrates consistent mosquito knockdown rates above 95% within the coverage area during peak activity periods. The device maintains effectiveness in light wind conditions up to 6 mph, making it suitable for tree stand hunting, camping, fishing, and backyard activities. The rechargeable design reduces long-term operating costs compared to disposable cartridge systems while maintaining the same active ingredient concentration.
Technical Specs
- Dimensions: 4.1 x 2.6 x 1.4 inches
- Weight: 8.8 ounces including battery
- Coverage Area: 400 square feet (20-foot radius)
- Runtime: Up to 12 hours per charge
- Charging: USB-C port with included cable
- Repellent: Heat-activated allethrin cartridges (sold separately)
- Operating Temperature: 50-95°F
- Water Resistance: IPX4 rated for outdoor use
The E55B represents proven mosquito control technology in a portable, rechargeable package that eliminates the ongoing costs and environmental impact of disposable alternatives. Professional guides and outdoor workers rely on Thermacell's zone protection for hands-free insect control that doesn't interfere with scent control or require skin application.