Introduction
The Flowtron Bug Zapper BK-80D is an electronic insect killer designed to provide effective pest control for outdoor areas up to 1.5 acres. It utilizes high-intensity UV black light and Octenol mosquito attractant to lure and eliminate various flying insects, including flies, gnats, beetles, moths, and most mosquito species. This manual provides essential information for the safe and efficient setup, operation, and maintenance of your bug zapper.

Figure 1: Flowtron Bug Zapper BK-80D, showcasing its design and 1.5 acre coverage.
Setup
Follow these steps to set up your Flowtron Bug Zapper:
- Unboxing: Carefully remove all components from the packaging. Inspect the unit for any damage.
- Placement: Select an appropriate outdoor location for the bug zapper. For optimal performance, place the unit at least 10 feet away from areas where people gather, such as patios, decks, or porches. This helps to draw insects away from your immediate vicinity. The unit is designed for outdoor use and is weatherproof.
- Hanging: Utilize the integrated hanging ring at the top of the unit to suspend it securely. Ensure the hanging point is sturdy enough to support the zapper's weight and can withstand wind.
- Octenol Attractant Installation: The unit includes Octenol mosquito attractant cartridges. Locate the built-in slots on the zapper and insert the cartridges as directed. When warmed by the UV lamp, the Octenol vaporizes, mimicking ruminant animals' breath and odor to enhance mosquito attraction.
- Power Connection: Plug the zapper into a standard outdoor electrical outlet. Ensure the power cord is routed safely to prevent tripping hazards and damage.

Figure 2: Exploded view showing key components like the hanging ring, UV bulbs, killing grid, and polycarbonate housing.

Figure 3: Proper insertion of the Octenol attractant cartridge to enhance insect luring.
Operating Instructions
Operating your Flowtron Bug Zapper is straightforward:
- Power On: Once plugged in, the unit will activate. The UV lights will illuminate, and the killing grid will become active.
- Automatic Operation: The zapper operates continuously when powered. For best results, allow it to run during dusk and nighttime hours when insect activity is highest.
- Coverage: The BK-80D model provides coverage for up to 1.5 acres, effectively reducing insect populations in wooded areas, backyards, patios, decks, and farms.
- Sound: Be aware that the unit produces a distinct 'zap' sound when an insect makes contact with the electrified grid. This is normal operation and indicates successful elimination.

Figure 4: The zapper's UV light effectively attracts flying insects.

Figure 5: The zapper is designed for safe use around children and pets in outdoor environments.
Maintenance
Regular maintenance ensures the longevity and effectiveness of your bug zapper:
- Bulb Replacement: The unit uses two 40W ultraviolet light bulbs. Replace bulbs periodically as their UV output diminishes over time, typically after a season of use. Refer to the user guide for specific bulb types and replacement instructions.
- Octenol Cartridge Replacement: Octenol cartridges are effective for approximately 30 days. Replace them monthly during peak insect season to maintain maximum attraction power.
- Cleaning: The 5600-volt killing grid features a non-clogging design, allowing zapped insects to fall to the ground. However, occasional cleaning of the outer housing and internal components may be necessary to remove dust or debris. Always unplug the unit before cleaning.

Figure 6: Illustration of how to replace the UV bulb for continued effectiveness.

Figure 7: Replacing Octenol cartridges ensures continuous enhanced attraction for mosquitoes.
Troubleshooting
If you encounter issues with your Flowtron Bug Zapper, refer to the following common problems and solutions:
- Unit Not Lighting Up:
- Check if the unit is securely plugged into a working electrical outlet.
- Inspect the power cord for any visible damage.
- The UV bulbs may need replacement if they have reached the end of their lifespan.
- Reduced Effectiveness:
- Ensure Octenol cartridges are fresh and properly installed. Replace them if they are older than 30 days.
- Verify that the UV bulbs are functioning correctly and have not dimmed significantly. Replace if necessary.
- Check the placement of the zapper. It should be positioned away from other light sources that might compete with its attraction.
- Loud Zapping Noises:
- This is normal operation and indicates that insects are being eliminated.
- If the noise is excessive or continuous without visible insects, ensure the killing grid is clear of debris.
Specifications
| Feature | Detail |
|---|---|
| Brand | Flowtron |
| Model Number | BK-80D |
| Coverage Area | 1.5 Acres |
| Bulb Type | UV Black Light (2 x 40W) |
| Killing Grid Voltage | 5600V |
| Attractant | Octenol (30-day cartridges included) |
| Material | Weatherproof Polycarbonate Housing, Metal Grid |
| Product Dimensions | 11"L x 11"W x 18.5"H |
| Item Weight | 0.01 Ounces |
| Certifications | UL Listed, EPA Certified |
| Manufactured In | USA |
Safety Information
- Always unplug the unit before performing any maintenance or cleaning.
- Do not insert foreign objects into the killing grid.
- Keep out of reach of small children and pets to prevent accidental contact with the grid.
- While designed for outdoor use, avoid direct exposure to heavy rain or extreme weather conditions for prolonged periods to maximize lifespan.
- The unit is UL Listed and EPA Certified, ensuring adherence to safety and environmental standards.
Warranty & Support
Flowtron products are known for their durability and are proudly Made in the USA. For detailed warranty information and customer support, please refer to the official Flowtron website or the comprehensive user guide provided with your purchase.
A digital version of the Instructions for Use (IFU) is available here.




