Description
Your Door Is the First Interface Between Your Family and the World.
Front-door security has traditionally meant a peephole — a fisheye lens that distorts faces, narrows perspective, and offers no record of who approached. The Portal Guardian dismantles this paradigm. It transforms your door into an intelligent access point with a 3.5-inch HD display, a 120-degree wide-angle lens, and real-time electronic viewing that turns every visitor into a clear, identifiable image before your hand touches the lock.
Designed for apartment dwellers, homeowners, and small business operators, the system captures what traditional peepholes miss: peripheral approach, package deliveries, and nighttime visitors. The integrated doorbell function and infrared night vision ensure that darkness is not a blind spot. Installation requires no wiring, no drilling, and no professional — it replaces your existing peephole in under three minutes, delivering enterprise-grade door surveillance at residential accessibility.
Before you open the door, know who stands behind it. Every time.
Key Features
Technical Specifications
Who It's For
Apartment Dwellers, Elderly Homeowners, Solo Residents, and Small Business Operators. The Portal Guardian fills the security gap between a basic peephole (which distorts and records nothing) and a full smart doorbell system (which requires Wi-Fi, wiring, and monthly subscriptions). For seniors who want to screen visitors without approaching the door, for parents who want to know when children answer the doorbell, and for small retail back-offices that need discreet delivery-door monitoring, this device delivers enterprise-grade door surveillance at a single purchase price with zero recurring costs.
Frequently Asked Questions
Q: Does this require Wi-Fi or an internet connection?
A: No. The Portal Guardian is a fully standalone device. All image processing, display rendering, and photo storage happen locally on the device. There is no companion app, no cloud subscription, and no dependency on your home Wi-Fi network. The only external requirement is 4×AA batteries, which last approximately 6 months under typical usage.
Q: Will it fit my door? I have a metal security door.
A: The Portal Guardian is compatible with door thicknesses from 35mm to 110mm and standard peephole apertures of 14–28mm diameter. Metal doors within this thickness range work perfectly — the camera unit and interior display connect through the existing peephole hole using the included threaded cylinder. If your peephole aperture is outside the 14–28mm range, a simple drill-bit expansion is all that is needed. No wiring, no external mounting brackets, no permanent modifications to the door surface.
Q: How clear is the night vision? Can I identify faces in the dark?
A: The infrared night vision activates automatically when ambient light drops below 1 lux (roughly the brightness of a single candle at 1 meter distance). At typical doorway distances of 0.5–1.5 meters, the IR illuminator produces clear monochrome images with sufficient facial detail for identification. For best results, avoid pointing the outdoor unit directly at a bright streetlight, which can cause IR sensor saturation.
Q: Can multiple people in the household monitor the door?
A: The indoor display unit is a single screen mounted on the interior side of your door. Anyone in the room with the display can view the live feed or browse captured photos. For multi-room monitoring, there is no wireless streaming capability — this is a focused, privacy-first device. The simplicity of a single dedicated display is intentional: no network means no remote hacking vector.
Q: How do I retrieve photos from the microSD card?
A: Remove the microSD card from the side slot of the indoor display unit and insert it into any computer or phone with a card reader (or use the included USB adapter). Photos are stored as standard JPEG files in timestamped folders. No proprietary software is required. The device can store approximately 6,000–8,000 photos on a 32GB card before overwriting the oldest files.
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