security system choices
Make informed home security decisions by understanding trade-offs and avoiding common mistakes with our comprehensive guide.
This Q840 outdoor security camera is designed for homeowners who want to monitor their property day and night, like keeping an eye on the backyard while the kids play or watching over deliveries at the front door. While many cameras focus on basic surveillance, this one acts as your personal lookout with features that anticipate your needs.
Its five-lens system with 10X optical zoom lets you see details clearly, whether checking license plates from a distance or spotting wildlife near your garden. The full-color night vision ensures you get a vivid view after dark, not just grainy shadows. When motion is detected, the auto-tracking follows the subject automatically, so you don't miss a thing—like catching a package thief in action before they even reach your porch.
With two-way audio, you can communicate directly through the camera, perfect for telling a delivery person where to leave a package or calming a pet during a storm. The four-screen view in the app allows you to monitor multiple areas at once, and flexible storage options include a micro SD card or cloud backup. This Alexa-compatible camera offers reliable home security with practical tools that make everyday monitoring effortless.
If you are interested in more details, you can find full information on the seller's page.
| Date | Price |
|---|---|
| 2/24/26 | $65.23 |
| 2/23/26 | $64.89 |
| This item | Recommendations | |||||
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DengHong Q840 Five lens system with 10X optical zoom
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OKAM K21 1080P HD enhanced image quality
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2-Lens WIFI IP Camera with 1080P Full Color Outdoor Waterproof Night Vision and 360-degree Coverage
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ESCAM TY114 4MP high definition with 2560x1440 resolution
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HD Dual-lens WiFi Surveillance Camera 10x optical zoom
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ESCAM PT223
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| Brand | DengHong | OKAM | ESCAM | ESCAM | ||
| Model | Q840 | K21 | ESCAM TY114 | PT223 | ||
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| Price | $65.23 | $13.83 | $25.68 | $23.71 | $39.53 | $35.58 |
| Seller | Banggood | Banggood | Banggood | Banggood | Banggood | Banggood |
| Update | Mar 3, 2026 | Mar 3, 2026 | Mar 3, 2026 | Mar 3, 2026 | Mar 3, 2026 | Mar 3, 2026 |
| Features | Multi Lens Surveillance, 24/7 Full Color Night Vision, Auto Tracking Alerts, Four Screen View, Two Way Audio, Flexible Storage | 360° Pan 90° Tilt wide angle surveillance, Two-way audio real-time communication, 1080P HD enhanced image quality, Humanoid auto tracking, Motion alarm sends alerts to phone, Full color night vision | 3 x 4MP resolution, Three-lens triple vision, Smart dual light modes, IR distance up to 20m (65.6 feet), High-quality two-way voice | |||
| Resolution | 20MP | 1920 x 1080 pixels | 1080P, 1920x1080, 2MP | 4MP 2560x1440, 720P 1280x720 | 6MP | 1280x720P |
| Video Compression | H.264, 12fps, 4 channel streams | Smart H.265/X | Smart H.265X | |||
| Image Sensor | High performance CMOS sensor | High performance CMOS sensor | 1/4" HD CMOS, 1 megapixel CMOS sensor H63P | |||
| Working humidity | 10% to 90% | 10% to 90% | 10% to 80% (no condensation) | |||
| Lens Focal Length | 3.6mm | 3.6mm | 4.0mm | |||
| Night Vision Type | Dual light night vision, Full color night vision | 4 LED infrared lights + 4 white light lights | Color night vision, Dual light, Single infrared LED | |||
| Waterproof Rating | IP66 | Outdoor Waterproof | IP66 | IP66 | ||
| Working temperature | -4°F to 131°F | -4°F to 131°F | 14°F to 131°F | |||
| Power Supply | DC5V, USB | DC 5V 2A | 12V 2A waterproof power supply | |||
| Cloud Storage | Support | Subscription required | Supported | |||