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Expert tips and customer insights for maximum protection
Our device operates across 8-56 KHz frequencies. Sounds below 20 KHz are audible to humans, confirming the device is working while effectively deterring rats.
The device detects continuous driving vibrations and auto-shuts off after 5-10 minutes. This prevents false triggers from temporary vibrations while your car's charging system handles the minimal power draw.
Remove rat scent, nesting materials, and territorial markers from your engine bay before installation for best results.
For severe infestations, use with rat spray for the first 10 days, then DEFENTRA alone.
Follow our step-by-step installation video for optimal placement and maximum effectiveness.
Don't keep food in your car. Clean away old droppings and scent trails completely.
Regular engine heat and vibration are natural deterrents. Even short drives every few days help.
Everything you need for a quick and effective installation is included:
Installing DEFENTRA® is simple and quick. Watch this short video for step-by-step instructions.
Click to watch the step-by-step installation guide