# Sensor & Latch > Independent, reader-funded coverage of subscription-free home security hardware: > smart locks, door and window sensors, security cameras and video doorbells. > Every pick carries a live, date-stamped Amazon price, the published specs behind > the ranking, the real cost to keep the device running, and a plain statement of > who should skip it. Site: https://sensorandlatch.com Contact: info@sensorandlatch.com Publisher: Type 5 Marketing LLC (https://type5marketing.com/) Sensor & Latch is part of the Type 5 Marketing family of independent review sites. Author: Stephen V., editor. An enthusiast, not a credentialed expert. ## What we do We compile published specifications, read manufacturer manuals, check published standards (BHMA/ANSI, Matter, Thread, IP ingress ratings), compute what a device costs to keep running, and cite all of it. Prices come from the Amazon Product API and are stamped with the date they were checked. ## What we explicitly do NOT do - We do not run a testing lab. We have not tested this hardware and we say so on every page. Products we claim to have tested: 0. - We do not publish reviews, ratings or testimonials from customers. We have none. - We do not publish a price we cannot verify live. When our price data is more than 48 hours old the number disappears and the page says "Check price on Amazon" rather than showing a stale figure. - We do not accept paid placements, sponsored picks or free units, and no brand sees a page before it is published. - We do not use fear-based marketing. Our readers are searching for specs, compatibility and the absence of a monthly bill. ## Positioning The category's big publishers compete on claimed hands-on testing. We cannot do that honestly, so we compete on a method that is reproducible from published sources: complete specification data and the arithmetic of what a device actually costs to own. Our four differentiating assets are the subscription-cost model, the door-fit guide (backset, cross-bore, thickness), the protocol compatibility matrix, and per-lock BHMA/ANSI grades. ## Categories - No Subscription — https://sensorandlatch.com/no-subscription Cameras, doorbells and alarm kits that keep working with no monthly fee. - Smart Locks — https://sensorandlatch.com/smart-locks Deadbolts, retrofits and keypads, ranked on grade, door fit and offline behavior. Sub-roundups by buyer intent: best fingerprint door locks, best keypad door locks, best smart locks for Airbnb and rentals, best budget smart locks, best Apple Home Key smart locks, and best smart locks for Home Assistant (ranked on whether the integration is local or cloud); plus reviews of the Schlage Encode Plus, August Wi-Fi Smart Lock, Aqara Smart Lock U100 and Ultraloq U-Bolt Pro. - Sensors — https://sensorandlatch.com/sensors Door and window contact sensors, water leak detectors and motion sensors. Includes a motion-sensor roundup (PIR against mmWave presence), a glass-break sensor roundup ranked on detection mechanism (acoustic against vibration), and an Aqara Motion Sensor P1 review. - Cameras — https://sensorandlatch.com/cameras Indoor, outdoor, wired and solar, ranked on where the footage actually lives. Sub-roundups: best indoor cameras, best wireless (battery and solar) cameras, best PoE cameras, best budget cameras, best 4K cameras, best solar cameras, best window cameras (and why infrared blinds a camera behind glass at night), complete camera systems ranked on the recorder rather than the cameras, a Home Assistant roundup ranked on published RTSP and ONVIF support, and a HomeKit roundup ranked on whether the camera still records with no iCloud+ plan; plus reviews of the eufy SoloCam S340, Reolink Argus PT Ultra and eufyCam 3. - Doorbells — https://sensorandlatch.com/doorbells Battery and wired video doorbells, ranked on wiring reality and storage. Includes a battery (no-wiring) doorbell roundup, a wired doorbell roundup, an apartment roundup (no transformer, no drilling, corridor-shaped field of view), and reviews of the eufy Video Doorbell E340 and Aqara Video Doorbell G4. - Guides — https://sensorandlatch.com/guides Fit, protocols, storage and running costs. Includes how to choose a smart lock, how long smart-lock batteries last, whether smart locks work in a power outage, Z-Wave vs Zigbee vs Matter, whether cameras work without wifi, how to choose a security camera, whether cameras and video doorbells need a subscription, PoE vs wifi cameras, where to place security cameras, retrofit vs replacement smart locks, self-monitored home security explained, smart home hubs for security, and smart lock troubleshooting. - Comparisons — https://sensorandlatch.com/comparisons Brand versus brand, ending in a decision rule rather than a winner. Head-to-heads include Schlage Encode Plus vs Yale Assure Lock 2, August vs SwitchBot, Ultraloq vs eufy, Wyze vs Tapo, Reolink vs Amcrest, Ring vs Wyze, Level vs August, Schlage Encode vs Kwikset Halo, Aqara U100 vs Ultraloq U-Bolt Pro, eufy Alarm vs Ring Alarm, eufy vs Arlo, Wyze vs Blink, Ring vs Arlo, Ring vs Blink, security camera vs doorbell camera, and IP camera vs NVR. - Reviews — https://sensorandlatch.com/reviews Every model review and ranked comparison in one index. ## How we are funded Affiliate links. As an Amazon Associate we earn from qualifying purchases. A commission does not change the price you pay and does not decide our picks. Amazon is currently the only retailer we earn from. Where a figure cannot be verified, the site says so rather than guessing. ## Trust pages - How we pick (methodology) — https://sensorandlatch.com/methodology - About — https://sensorandlatch.com/about - Editorial policy — https://sensorandlatch.com/editorial-policy - Affiliate disclosure — https://sensorandlatch.com/affiliate-disclosure - FAQ — https://sensorandlatch.com/faq - Contact — https://sensorandlatch.com/contact - Privacy — https://sensorandlatch.com/privacy - Terms — https://sensorandlatch.com/terms ## Machine-readable index - Sitemap (human-readable, every page grouped by category) — https://sensorandlatch.com/site-index - Sitemap (XML) — https://sensorandlatch.com/sitemap.xml - Atom feed, 20 most recent pages, excerpt only — https://sensorandlatch.com/feed.xml The feed advertises a WebSub hub at https://pubsubhubbub.appspot.com/ and is pushed on publish, so subscribers get new pages without polling. Entries carry a one-line summary and a link, never the full article body. ## Full reference https://sensorandlatch.com/llms-full.txt