STEM Flying Insect Trap 2-Pack — Indoor Fruit Fly & Gnat Catcher with Soft Blue LED and 2 Cartridges

The STEM Flying Insect Trap is a plug-in, insecticide-free indoor device that uses soft blue light and sticky cartridges to attract and capture fruit flies, gnats, mosquitoes, moths and house flies.

Designed for kitchens, bathrooms, entryways and other indoor spaces, this discreet 2-pack delivers continuous, hands-off pest control without sprays or odors. Each kit includes two plug-in units and two dual-sided adhesive cartridges; the traps run quietly 24/7 and use a small blue LED to lure flying pests into a replaceable sticky surface. Installation is tool-free: peel the protective layer from the cartridge, insert it into the base, and plug the unit into a nearby outlet—rotate the 90-degree plug for the best angle. The STEM trap is compatible with certain Raid Essentials light-trap refills for added convenience.

How does the STEM trap catch fruit flies and gnats?

The device combines a soft blue LED that draws flying pests with a replaceable dual-sided adhesive cartridge that holds insects once they land. It’s designed to mimic the light cues that attract small flies while keeping the capture method simple and odorless.

• Blue light lure optimized for small indoor pests.
• Dual-sided sticky cartridge traps insects on contact.
• Continuous operation maximizes capture overnight and during the day.

Is this safe to use around pets and children?

The STEM Flying Insect Trap operates without chemical insecticides, sprays or fumes, making it a lower-exposure option when used as directed. Units plug into standard indoor outlets and should be mounted out of reach of curious hands and paws for best safety and performance.

• No insecticide or aerosol required—reduces chemical exposure risks.
• Quiet, low-heat LED operation suitable for living spaces.
• Position units high or away from reach to prevent cartridge contact.

Where should I place the trap for best results?

Place traps near problem areas where flying insects gather—by fruit bowls, trash cans, sinks, or doorways—but not directly above food prep surfaces. The 90-degree rotating plug allows flexible positioning so the light faces the area you want to protect.

• Kitchens: near fruit bowls or compost bins to cut fruit fly activity.
• Bathrooms and laundry areas: reduce gnats and moths drawn to damp zones.
• Entryways and garages: intercept mosquitoes and house flies entering the home.

How do I maintain and replace cartridges?

Maintenance is straightforward: swap the adhesive cartridge when it fills with trapped insects or loses stickiness. Each cartridge is dual-sided for extended use; dispose of used cartridges in regular trash and replace with STEM or compatible refills for uninterrupted protection.

• Peel protective film and insert cartridge to start a new one.
• Replace when adhesive no longer captures insects or is visibly full.
• Compatible with some Raid Essentials light-trap refills for easy sourcing.

Who is this for: The STEM Flying Insect Trap is for homeowners, renters, and anyone who wants an odorless, low-maintenance way to reduce indoor flying pests without chemical sprays. It’s a practical choice for kitchens with fruit fly problems, small apartments where aerosols are undesirable, pet-friendly households seeking lower-exposure options, and anyone looking for a discreet, continuously operating indoor trap. Ideal for people who prefer plug-in solutions that require minimal upkeep and work quietly day and night.