The Best Motion Sensors and Home Security Gadgets Without Cameras
The Best Motion Sensors and Home Security Gadgets Without Cameras
最佳无摄像头运动传感器与家庭安防设备
Security cameras are cheap and abundant, but many folks are uncomfortable with the idea of a video feed showing the inside of their home. Even as a security camera reviewer, I get it. The risks add up quickly, whether it’s vulnerabilities exposing your video feed to the internet, powerful microphones picking up your private conversations, or overzealous companies sharing video with the surveillance state. 安防摄像头既便宜又普及，但许多人对于家中内部被视频监控的想法感到不安。即使作为一名安防摄像头评测员，我也能理解这一点。风险累积得很快，无论是视频流暴露在互联网上的漏洞、强大的麦克风录下你的私人对话，还是过度热心的公司将视频分享给监控机构。
The good news is you don’t need a camera to secure your home or detect intruders. I tested several motion sensors and alternative systems that can alert you of activity just as effectively without sacrificing your privacy. 好消息是，你不需要摄像头也能保护家庭安全或检测入侵者。我测试了几款运动传感器和替代系统，它们同样能有效地提醒你注意活动，且不会牺牲你的隐私。
(If you do happen to be OK with a more conventional approach to home security, check out my recommendations for the Best Indoor Security Cameras, Best Outdoor Security Cameras, and Best Video Doorbell Cameras.) （如果你确实能接受更传统的家庭安防方式，请查看我关于“最佳室内安防摄像头”、“最佳室外安防摄像头”和“最佳视频门铃摄像头”的推荐。）
An Old-School Radar System
老派雷达系统
Letwesaf Radar Motion Alarm System ($220, Amazon) Letwesaf 雷达运动报警系统（亚马逊售价 220 美元）
This radar system is ideal for protecting larger properties, with its range of up to half a mile and adjustable detection zone. It’s old school: With no Wi-Fi or app needed, you simply turn on the receiver and pair the detector. It then sounds an alarm whenever a person or animal moves into the area. You can pair up to six detectors with the receiver (though you only get one), and they are IP65-rated, so they’ll survive just fine in any weather. Each additional detector costs $120, so it could be quite an expensive system. By default, the detection zone is a rectangle around 20 x 17 feet. You can extend it up to 50 feet, though I found the process outlined in the manual a bit fiddly and unclear (you have to move within the detection zone and press the right buttons). 这款雷达系统非常适合保护大型房产，其探测范围可达半英里，且检测区域可调。它非常传统：无需 Wi-Fi 或应用程序，只需打开接收器并与探测器配对即可。当有人或动物进入该区域时，它会发出警报。你可以将最多六个探测器与接收器配对（尽管包装内只提供一个），且它们具备 IP65 防护等级，足以应对各种天气。每个额外的探测器售价 120 美元，因此这可能是一套相当昂贵的系统。默认情况下，检测区域是一个约 20 x 17 英尺的矩形。你可以将其扩展至 50 英尺，尽管我发现手册中描述的操作过程有些繁琐且不清晰（你必须在检测区域内移动并按下正确的按钮）。
After testing in a couple of outdoor scenarios (side passage and backyard), I was impressed by this system. It reliably picked up and alerted motion by people and my cats without being triggered by wind causing movement in the bushes. This could be handy for guarding the exterior of your home, outbuildings, or even for protecting your campsite or RV on trips. The downside is that the 3,000-mAh rechargeable battery needs topping off every five or six days. You can plug a power bank into the USB-C port, but for fixed outdoor installations, you might consider snagging a wee USB-C solar panel. 在几个户外场景（侧通道和后院）测试后，我对该系统印象深刻。它能可靠地捕捉并提醒人或猫的活动，且不会被灌木丛中因风吹引起的晃动所触发。这对于保护房屋外部、附属建筑，甚至在旅行时保护露营地或房车非常有用。缺点是 3,000 mAh 的可充电电池需要每五到六天充电一次。你可以将移动电源插入 USB-C 接口，但对于固定的户外安装，你或许可以考虑配一个小型的 USB-C 太阳能电池板。
A Simple Motion Sensor
简易运动传感器
Kinisium Kini SafeAlert Wi-Fi Motion Sensor ($75, Amazon) Kinisium Kini SafeAlert Wi-Fi 运动传感器（亚马逊售价 75 美元）
This gadget is ideal if you have a specific cupboard, cabinet, or drawer you want to protect; maybe somewhere you keep valuables or medication, or perhaps a gun safe. It has sensors inside to detect movement in any direction, and you can simply place it, attach it with the steel cable tether, or stick it somewhere with adhesive. It only connects to 2.4-GHz Wi-Fi, but it is highly configurable. You can set the sensitivity, cool-down period between alerts, axis monitoring (x, y, and z), and have it send alerts via the app, email, or text message. It is configurable via your web browser if you don’t want to use the mobile app. 如果你有特定的橱柜、柜子或抽屉需要保护，这款设备非常理想；比如存放贵重物品、药品的地方，或者枪支保险柜。它内置传感器，可检测任何方向的移动，你可以直接放置它、用钢缆固定，或用粘合剂贴在某处。它仅支持 2.4-GHz Wi-Fi 连接，但可配置性极高。你可以设置灵敏度、警报间的冷却时间、轴向监控（x、y 和 z 轴），并让它通过应用程序、电子邮件或短信发送警报。如果你不想使用移动应用程序，也可以通过网页浏览器进行配置。
Kini is very reliable. I tested it in a drawer and a cabinet, and it always alerted me when they were opened. It also keeps a log with times listed. While alerts go via the cloud, maker Kinisium says it doesn’t collect data, and you can turn off logging entirely if you prefer. Kini also has a Stasis mode, so you can reverse it and have it alert you when there has been no movement for a set period. This makes it a versatile monitoring device, and you could use this mode to ensure an elderly relative opens their medicine cabinet each day or check what time your dog walker opened a door. Kini is also compatible with IFTTT for automation, and there’s even a webhook integration that can send notifications to a custom URL. Kini 非常可靠。我在抽屉和柜子里测试了它，每次打开时它都能及时提醒我。它还会记录带有时间戳的日志。虽然警报通过云端发送，但制造商 Kinisium 表示不会收集数据，如果你愿意，还可以完全关闭日志记录功能。Kini 还具有“静止模式”（Stasis mode），你可以反向设置，让它在一段时间内没有检测到移动时发出警报。这使它成为一种多功能的监控设备，你可以利用此模式确保年长的亲属每天打开药柜，或者查看遛狗员何时打开了门。Kini 还兼容 IFTTT 以实现自动化，甚至还有一个 webhook 集成，可以将通知发送到自定义 URL。
More Motion Sensors
更多运动传感器
Eve Motion Sensor ($55, Amazon/Apple) Eve 运动传感器（亚马逊/苹果售价 55 美元）
There are loads of other motion sensors that can alert you to motion or presence in an area or room and trigger lighting, but the right one for you depends on your current smart-home setup. I really like the Eve Motion Sensor, but if you want it to trigger alerts, you need a smart-home hub, and you must set up an automation. It’s a reliable sensor that works indoors or out. I tested it with a Google Home system. 市面上还有许多其他运动传感器，可以提醒你某个区域或房间内的活动或存在，并触发照明，但哪款适合你取决于你当前的智能家居配置。我非常喜欢 Eve 运动传感器，但如果你想用它触发警报，你需要一个智能家居中枢，并且必须设置自动化。它是一款适用于室内或室外的可靠传感器。我是在 Google Home 系统下测试它的。
The Aqara FP2 Presence Sensor ($83) has many features, including zonal and multiple person detection, and is compatible with all the major smart-home ecosystems, though it’s not always very accurate at identifying the number of people in the room. The more affordable Aqara FP300 ($50) is a good enough presence detector for most folks and can also track light, temperature, and humidity. The Switchbot Presence Sensor ($30) is the most affordable sensor I tested and has a similar feature set, but you will need a Switchbot hub if you want alerts, and there’s a lag between it detecting and alerting. Aqara FP2 存在传感器（83 美元）功能丰富，包括区域检测和多人检测，并兼容所有主流智能家居生态系统，尽管它在识别房间内人数方面并不总是非常准确。更实惠的 Aqara FP300（50 美元）对大多数人来说已经足够好，还可以追踪光照、温度和湿度。Switchbot 存在传感器（30 美元）是我测试过最便宜的传感器，功能集相似，但如果你需要警报，则需要一个 Switchbot 中枢，且在检测到活动与发出警报之间存在延迟。
Philips Hue Outdoor Motion Sensor ($55, Amazon) Philips Hue 室外运动传感器（亚马逊售价 55 美元）
The Philips Hue Outdoor Motion Sensor is excellent, but only if you already have a Hue setup, because it needs a Hue Bridge to connect to. I installed the sensor in my backyard and tested it with the Bridge Pro. It reliably detects people with few false positives. I configured my outdoor sensor to turn on a backyard light strip (not Hue) after sunset and send me a notification when triggered between specific hours (midnight and 6 am) using Google Gemini. There’s also a Philips Hue Indoor Motion Sensor and a Contact Sensor ($40) for doors and windows. Both are very reliable and can be configured to trigger alerts. Philips Hue 室外运动传感器非常出色，但前提是你已经拥有 Hue 系统，因为它需要连接到 Hue Bridge。我在后院安装了该传感器，并用 Bridge Pro 进行了测试。它能可靠地检测到人，且误报率很低。我配置了室外传感器，使其在日落后开启后院灯带（非 Hue 产品），并在特定时间段（午夜至凌晨 6 点）触发时，通过 Google Gemini 向我发送通知。此外还有 Philips Hue 室内运动传感器和用于门窗的接触传感器（40 美元）。两者都非常可靠，且可以配置为触发警报。
Smart Light Sensing
智能光感
As an interesting alternative to dedicated motion sensors, you can also use some smart lights to detect presence and motion indoors. 作为专用运动传感器的一种有趣替代方案，你也可以使用一些智能灯来检测室内的存在和运动。
Wiz SpaceSense Wiz SpaceSense
If you have a few Wiz lights, you can try SpaceSense, which uses Wi-Fi to detect motion in rooms. 如果你有几盏 Wiz 灯，可以尝试 SpaceSense，它利用 Wi-Fi 来检测房间内的运动。