--- product_id: 127166178 title: "QJ4" brand: "foscam" price: "HK$115" currency: HKD in_stock: false reviews_count: 11 url: https://www.desertcart.hk/products/127166178-qj4 store_origin: HK region: Hong Kong --- # 112° wide angle 4MP Ultra HD PoE convenience QJ4 **Brand:** foscam **Price:** HK$115 **Availability:** ❌ Out of Stock ## Summary > 🔒 Secure Your Space, Day or Night! ## Quick Answers - **What is this?** QJ4 by foscam - **How much does it cost?** HK$115 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/127166178-qj4) ## Best For - foscam enthusiasts ## Why This Product - Trusted foscam brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **🤖 Smart Detection:** AI-powered human detection minimizes false alarms for peace of mind. - • **🔗 Effortless Setup:** Power over Ethernet simplifies installation with just one cable. - • **🌙 Night Vision Mastery:** See up to 66ft in complete darkness with advanced infrared technology. - • **🔍 Crystal Clear Vision:** Experience stunning 4MP Ultra HD resolution for unparalleled clarity. - • **🌧️ Weatherproof Reliability:** IP66 rated to withstand the elements, ensuring year-round protection. ## Overview The Foscam PoE Ultra HD 2K 4MP IP Camera is a versatile security solution designed for both indoor and outdoor use. With its advanced AI human detection, 66ft night vision capabilities, and robust IP66 weatherproof rating, this camera ensures reliable surveillance in any condition. The Power over Ethernet feature simplifies installation, making it an ideal choice for residential and commercial settings. ## Description Full description not available ## Features - 4MP Ultra HD Vision and Wide Viewing Angle: Powered by Mstar chipset, Ultra HD 4MP(2304x1536) display resolution with 6X digital zoom at 20fps, capture more clearer images and video with higher color saturation, wide filed of view up to 112 degree viewing angle allow you to see more details and cover more ground to keep more of what you love safe. - Power Over Ethernet: Foscam POE camera with only one Ethernet cable for power and data transmission, no additional power adapter needed makes the cables and installation more convenient and easier, easy setup with plug and play. The camera is suitable for outdoor and indoor, such as residential area, supermarket and business. - AI Human Detection/Motion Detection: Foscam QJ4 supports intelligent human detection. You can choose model of human-only detection on Foscam APP, when somebody comes, it will intelligently identify human activities, and decrease the false alarms like flying birds, fallen leaves or other objects, and then push human-detect alerts to your APP/Email/Cloud when compared with motion detection. Please upgrade your APP to the lastest version. - IP66 Weatherproof & 66ft Night Vision: With 30pcs infrared LEDs, the bullet camera can capture clear image in the darkness, and the night vision distance is up to 66ft. Foscam weatherproof camera with mental case can prevent corrosion, operating in the temperature from -4˚F to 140˚F. Protects what you care no matter its day or night, rain or shine. ## Product Details - **Recommended Uses For Product:** Indoor,Outdoor - **Brand:** FOSCAM - **Model Name:** QJ4 White - **Connectivity Technology:** Wired - **Special Feature:** Night Vision, Motion Sensor ## Images ![QJ4 - Image 1](https://m.media-amazon.com/images/I/61CTR3HmSzL.jpg) ![QJ4 - Image 2](https://m.media-amazon.com/images/I/71Aj7qvfDAL.jpg) ![QJ4 - Image 3](https://m.media-amazon.com/images/I/719SSDZKSrL.jpg) ![QJ4 - Image 4](https://m.media-amazon.com/images/I/71zUiFKjBhL.jpg) ![QJ4 - Image 5](https://m.media-amazon.com/images/I/611+V4eZCyL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Is this compatable with Blue Iris?** A: I have Blue Iris, previous version and current. This cam is working perfectly w/ B.I. **Q: Can't find any info on filesizes anywhere. How much MB does a video at highest quality take per minute/hour?** A: Take a look at AI-HomeGuard software (running on PC/Windows 10/Linux) - search keyword aihomeguard at Amazon. The AI based software eliminates any false alarm without missing positive events. It sends email alerts, records detected objects (person, car …) on local drive as an NVR, and control smart switches. No cloud service needed. **Q: The g2 specs an ac adapter with 12v/1a output. will this cam run on an automotive supply (11-13vdc)?** A: There is a 12V/1A power supply in the box. So please use the orginal power supply. Thank you **Q: Is this a compatible add on for my foscam 8ch poe 1080p security cctv surveillance system?** A: Yes can add on no problem have been doing for years ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars It provides clear and sharp images. I am satisfied. *by A***R on Reviewed in the United States on December 23, 2020* This review is for Foscam 1080P G2 camera. I will also talk about some difference between G2 and G4 2K 4MP.Before going into the review, I would like to praise Foscam’s customer service and the representative Yiko. They are responsive and always get back to me within 12 hours. Yiko is very helpful, walks me through the details and solves some difficulties.My company is using Avigilon with some 4K cameras. For my personal use, I have chosen Blue Iris and got couple G4 and G2 cameras to cover my property perimeter. Before placing the order, I did some comparison online among 1080P Yi, Amcrest, Reolink cameras. Only G2 supports RTSP, ONVIF, FTP for sure. Although some reviews say other brands support RTSP and ONVIF, some reviews say they don’t and are not Blue Iris compliant. Since I use Blue Iris, getting G2 can give me peace of mind.AfterimageAt first, I noticed that occasionally G2 gave some afterimage. After playing a while, I found out that following methods could avoid that:1. Set Blue Iris to record direct-to disc (Camera Properties ->Record ->File format and compression...->Direct-to-disc).2. Reboot camera regularly. (I use smart plug to do hard reboot, but it can be achieved by using VMS or browser “Enable Periodic Maintenance”)3. Reboot your PC regularly. (I use Windows “Task Scheduler”)I also attached some photos to show my video setting that satisfies my requirement.VMS vs Web BrowserTo set up the camera, as some reviews points out, you have to download their proprietary plugin to use web browser. If you have hesitation, you may use their VMS instead. Once you have set them up, basically you don’t need it anymore.However, VMS and web browser don’t work exactly the same. If you need to enable Human Detection, you have to use web browser because VMS does not have such option box (I am using VMS vers 2.4.122, not sure if it’s bug). But since Blue Iris has its own motion detection method, it doesn’t use G2’s Human AI. I mention here for those who may use Cloud Storage or Micros SD card for local storage.Another thing is, with VMS you can manage all cameras within one interface while web browser can only access one camera. You have to open more than one browser to manage different cameras simultaneously. However, web browser is much faster than VMS.One more thing I would like to bring up is when working with Blue Iris, the camera resolution can only be set in Blue Iris. Even you change it in VMS. Blue Iris will change it back to the highest native resolution. It’s fine with G2. But there is some problem with G4 because Blue Iris does not have 1080p option for G4. Strange!However, if you only use native highest resolution, it doesn’t matter to you or you just use web browser to change resolution.Wireless strengthFor those cameras I could use network cables, I keep them wired. But I do have one G2 using WiFi. The camera WiFi is pretty strong. It connects to my ASUS DD-WRT firmware AC68U 30 feet away with a wall in between. I was not aware of any disconnection and it provides stable 1080p 25 fps videos.No internal speaker and micAs other reviews mention, user has to connect external speaker and mic. It could be a con. But I would see it as a pro. Because if I want to use the camera as an announcer, I can connect it to an amplifier and some better speakers. And I have an option to connect it to a better mic to pick up better sound quality.Some people may want to use the cameras for live monitoring. With speaker and mic, they can communicate with the objects.However, the video has delay. When using Blue Iris, G2 has about 15 sec delay while G4 has about 30 sec. If using VMS, it’s better. There are only about couple sec delay. But still it’s not ideal for live monitoring and communicating. So unless you need to record sound in your video, no internal speaker and mic may not a big deal.G2 vs G4G2 is 1080p 25 fps. G4 is 4M 2K 20 fps. When comparing the video quality, I don’t see any significant difference. So if you want to save a few bucks and have a bit smoother video (25 fps), G2 is a good choice. But if you really want 4M 2K regardless, then G4 is for you.Ver. 1 and Ver. 2You may notice G2 has two different front faces. One shows LEDs and the other doesn’t (but still has LEDs). They are Ver. 1 and Ver. 2. The features are the same. Just Ver. 1 is using transparent glass to cover the LEDs while Ver. 2 is using tinted glass. I didn’t compare side by side the LED effective range of two versions. Ver. 2 LEDs still can do the job. It doesn’t look like the tinted glass diminishes the infrared and personally I like Ver. 2 more.Overall performanceI have been using G2 cameras for 2 months and pretty satisfied with the quality. It provides sharp and clear images. During the hours of darkness, the built-in 30 infrared LEDs can illuminate up to 66 feet. But I feel that even in low light situation, the sensor can still pick up good video quality. So for one of my G2s covering the area under a street light, I don't’ use the LEDs at all. I set the IR LED mode to “Manual” and IR LED state to “Off”. I would like to have color video vs IR B/W images. After some storms in CA, the G2 (and G4) cameras are still working solid. I will update the review in the future if needed. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Can't believe it's survived this long *by A***R on Reviewed in the United States on December 1, 2024* So I got this to use as a "nature cam" of sorts high up on my ham radio tower in 2021, it's been exposed to the Pennsylvania elements (hot summers; sub zero winters) every single day. One of the local TV stations also takes a feed from it to their weather system to show a timelapse every day on the news. I genuinely can't believe it's lasted this long ### ⭐⭐⭐⭐ 4.0 out of 5 stars New Cams *by S***. on Reviewed in the United States on December 15, 2023* Brought these for the house. The password is annoying. It's Special character and letters or numbers and letters... not all. The prompt for it is annoying as it does not explain this. Also, who the hell does the programmer think he is to make me have a password one way? It's my damn money and my system... Outside of zoomer levels of stupid programming for setup, they work great! Video is better night or day from the last ones I had (720p). Night vision has better detail. After you loosen everything they will point just about anywhere. I use a non-foscam NVR (QNap 9bay) that I use for many things. These are new enough to be prebuilt into the software. Foscams native ports are 554, 443, 88, and 888 (ringer) for those softwares. Bullets are 88, and 554 if I remember unless you change it.Foscam could go back to web interface so those of us who can, can actually custom setup our stuff without an annoying menu...! That would be great. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/127166178-qj4](https://www.desertcart.hk/products/127166178-qj4) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-05-20*