Introduction
The Thermacell E-ZoneGuard Rechargeable Mosquito Repeller provides an effective, scent-free, and flame-free solution for creating a mosquito-free zone. This device is designed for outdoor use, offering a 20-foot (6-meter) protection zone against mosquitoes. It is powered by a rechargeable lithium-ion battery and utilizes a proprietary repellent formula to keep mosquitoes away from your patio, deck, or other outdoor spaces.

The Thermacell E-ZoneGuard Rechargeable Mosquito Repeller, charcoal model.
Safety Information
Please read and understand all safety warnings and instructions before using this product. Failure to follow these instructions may result in injury or product damage.
- Outdoor Use Only: This device is intended for outdoor use. Do not use indoors, in tents, or in any enclosed areas.
- Keep Out of Reach of Children and Pets: Store the device and repellent cartridges in a secure location away from children and pets.
- Repellent Cartridge Handling: Do not touch the repellent cartridge directly. If contact occurs, wash hands thoroughly with soap and water.
- Avoid Direct Contact with Skin: The repellent is designed to create a zone of protection, not for direct application to skin.
- Do Not Block Vents: Ensure the device's vents are not obstructed during operation to allow proper repellent dispersion.
- Charging: Use only the provided USB charging cable. Do not attempt to charge with damaged cables or chargers.
- Battery Safety: The device contains a lithium-ion battery. Do not expose to extreme temperatures, puncture, or disassemble. Dispose of batteries according to local regulations.

The Thermacell E-ZoneGuard is designed to be people and pet friendly when used as directed.
Package Contents
Verify that all items are present in your package:
- 1 x Thermacell E-ZoneGuard Rechargeable Mosquito Repeller (Charcoal)
- 1 x 12-Hour Repellent Refill Cartridge
- 1 x USB Charging Cable

The starter kit includes the repeller unit, a 12-hour repellent cartridge, and a USB charging cable.
Setup
1. Charge the Device
- Connect the provided USB charging cable to the charging port on the repeller.
- Plug the other end of the USB cable into a compatible USB power source (e.g., wall adapter, computer USB port).
- The battery indicator lights will illuminate to show charging progress. A full charge typically takes several hours.
- Once fully charged, the device provides approximately 5.5 hours of continuous operation.
2. Insert the Repellent Cartridge
- Remove the cap from the repellent cartridge.
- Insert the cartridge into the designated slot on the top of the repeller unit. Ensure it is seated firmly.

The Thermacell E-ZoneGuard with a repellent cartridge ready for insertion.
Operating Instructions
1. Activating the Device
- Place the repeller on a flat, stable surface in your desired outdoor area. For optimal performance, place it upwind of your location.
- Press the power button once to turn the device on. The indicator lights will illuminate, and the device will begin to heat up.
- Allow approximately 15 minutes for the device to reach full operating temperature and establish the 20-foot (6-meter) protection zone.
2. Deactivating the Device
- To turn off the device, press and hold the power button until the indicator lights turn off.
- Ensure the device is completely off before storing or moving it.

Internal diagram illustrating the operational mechanism of the Thermacell E-ZoneGuard.

The Thermacell E-ZoneGuard creates a 20-foot (6-meter) zone of mosquito protection.
Maintenance
1. Replacing Repellent Cartridges
Repellent cartridges typically last for 12 hours of use. When the cartridge is empty, replace it with a new Thermacell E-ZoneGuard refill cartridge.
- Ensure the device is turned off and cool before handling.
- Gently pull out the used cartridge from the top of the device.
- Insert a new Thermacell E-ZoneGuard refill cartridge, ensuring it clicks into place.
2. Cleaning
Wipe the exterior of the device with a damp cloth as needed. Do not use abrasive cleaners or immerse the device in water.
3. Storage
When not in use, store the device and repellent cartridges in a cool, dry place, away from direct sunlight and extreme temperatures.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not turning on | Battery is depleted. | Charge the device using the provided USB cable. |
| No mosquito protection | Repellent cartridge is empty or improperly inserted. | Replace the repellent cartridge or ensure it is fully seated. |
| No mosquito protection | Device not allowed sufficient time to establish zone. | Wait 15 minutes after activation for the protection zone to form. |
| No mosquito protection | Strong winds dispersing repellent. | Relocate the device to an area with less wind or place it upwind of your position. |
| Device indicator lights not working | Device is off or battery is very low. | Ensure the device is turned on. If not, charge the device. |
Specifications
- Model Number: E552CHRCA
- Dimensions (L x W x H): 11.4L x 11.4W x 21.6H centimetres (4.5 x 4.5 x 8.5 inches)
- Weight: 400 g (0.88 lbs)
- Power Source: Rechargeable Lithium-Ion Battery
- Battery Life: Approximately 5.5 hours per charge
- Protection Zone: 20 feet (6 meters)
- Repellent Cartridge Life: 12 hours
- Material: Plastic
- Color: Charcoal
- Country of Origin: USA
- Target Species: Mosquito
Warranty and Support
Satisfaction Guarantee
Thermacell stands behind the performance and quality of its products. If you are not satisfied with your purchase, you may return it for repair, replacement, or refund. Please contact the Thermacell Customer Support Team for assistance.
Contact Information
For customer support or warranty inquiries, please contact:
Thermacell Repellents, Inc.32 Crosby Drive
Bedford, MA 01730
USA
Toll Free: (866) 753-3837