{"product_id":"milesight-vs121-ai-occupancy-sensor","title":"Milesight VS121 AI Workplace Occupancy Sensor, LoRaWAN or PoE","description":"\u003cp\u003eThe \u003cstrong\u003eMilesight VS121\u003c\/strong\u003e is an AI workplace occupancy sensor for offices, meeting rooms, open-plan floors, libraries and retail zones. Mounted on the ceiling, it counts how many people are in up to 16 areas and how many cross a line, so you can plan desks, rooms and cleaning on real use. Detection is anonymous on the device. Choose LoRaWAN for wireless installation or PoE for wired networks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuying for several floors or sites?\u003c\/strong\u003e Shop prices are per unit and exclude VAT. For projects we quote hardware, installation, licences and support together. \u003ca href=\"https:\/\/vemcogroup.com\/contact-us\"\u003eRequest volume pricing\u003c\/a\u003e. Partners see their own price after signing in.\u003c\/p\u003e\n\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAI occupancy detection:\u003c\/strong\u003e Milesight states up to 95% recognition rate (line-crossing, within the recommended detection range).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVery wide view:\u003c\/strong\u003e 190° × 112° field of view; Milesight states up to 127.84 m² coverage from one sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegion and line counting:\u003c\/strong\u003e up to 16 regions with dwell time, bi-directional line crossing with U-turn filtering, people-flow analysis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrivacy tools:\u003c\/strong\u003e up to 8 privacy masks (normal or blur), scheduled detection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo connection types:\u003c\/strong\u003e LoRaWAN Class C (Type-C powered) or PoE with MQTT(S), HTTP(S) API and BACnet\/IP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlerts:\u003c\/strong\u003e overcrowding alarm and data retransmission after network outages.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhich VS121 do I need?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAbout the SKUs:\u003c\/strong\u003e SKUs starting with \u003cem\u003eNF\u003c\/em\u003e are Vemco's codes for Milesight VS-series sensors delivered with Vemco firmware. NF121 is the Milesight VS121 (LoRaWAN) and NF121-P the VS121-P (PoE). \"-High\" marks the high ceiling mount version; the colour suffix is Vemco's.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eShop SKU\u003c\/th\u003e\n\u003cth\u003eMilesight model\u003c\/th\u003e\n\u003cth\u003eConnectivity\u003c\/th\u003e\n\u003cth\u003eFrequency plans \/ regions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNF121-White, NF121-Black\u003c\/td\u003e\n\u003ctd\u003eVS121, standard 2.3–4 m\u003c\/td\u003e\n\u003ctd\u003eLoRaWAN Class C, USB Type-C 5 V power\u003c\/td\u003e\n\u003ctd\u003e868M band: EU868 (Europe, Middle East, Africa), IN865 (India), RU864 (Russia); or 915M band: US915 (North America), AU915 (Australia, Latin America), KR920 (Korea), AS923 (Asia-Pacific). Tell us your region when ordering. CN470 on request.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNF121-P-White, NF121-P-Black\u003c\/td\u003e\n\u003ctd\u003eVS121-P, standard 2.3–4 m\u003c\/td\u003e\n\u003ctd\u003eEthernet, IEEE 802.3af PoE or 5 V DC\u003c\/td\u003e\n\u003ctd\u003eNo radio, works worldwide.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNF121-White-High, NF121-Black-High, NF121-P-White-High, NF121-P-Black-High\u003c\/td\u003e\n\u003ctd\u003eVS121 high ceiling mount, 5–7 m\u003c\/td\u003e\n\u003ctd\u003eLoRaWAN or PoE\u003c\/td\u003e\n\u003ctd\u003eAs above. Milesight's current datasheet lists only the 2.3–4 m version, so \u003ca href=\"https:\/\/vemcogroup.com\/contact-us\"\u003eask us to confirm availability\u003c\/a\u003e before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCoverage by mounting height\u003c\/h2\u003e\n\u003cp\u003eDetection range per sensor (standard version), from the Milesight VS121 datasheet. Milesight recommends more than 2.5 m for seated people (region counting) and about 3 m for standing people (line crossing).\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMounting height\u003c\/th\u003e\n\u003cth\u003eDetection range\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.3 m (7.5 ft)\u003c\/td\u003e\n\u003ctd\u003e7.4 × 2.8 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.5 m (8.2 ft)\u003c\/td\u003e\n\u003ctd\u003e9.6 × 3.6 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.0 m (9.8 ft)\u003c\/td\u003e\n\u003ctd\u003e12.3 × 5.0 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.5 m (11.5 ft)\u003c\/td\u003e\n\u003ctd\u003e18.6 × 7.6 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.0 m (13.1 ft)\u003c\/td\u003e\n\u003ctd\u003e19.3 × 8.3 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnology\u003c\/td\u003e\n\u003ctd\u003eAI image analysis on the device, anonymous detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField of view\u003c\/td\u003e\n\u003ctd\u003e190° H × 112° V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting height\u003c\/td\u003e\n\u003ctd\u003e2.3–4 m, ceiling mount (standard version)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoRaWAN version (VS121)\u003c\/td\u003e\n\u003ctd\u003eClass C, OTAA\/ABP; CN470, IN865, RU864, EU868, US915, AU915, KR920, AS923; Milesight D2D; Type-C 5 V \/ 3 A, 9.4 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoE version (VS121-P)\u003c\/td\u003e\n\u003ctd\u003e1 × RJ45 10\/100 Mbps, IEEE 802.3af PoE (8.2 W) or 5 V DC; 1 × DI, 1 × DO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocols (PoE)\u003c\/td\u003e\n\u003ctd\u003eMQTT(S), HTTP(S) API, BACnet\/IP, RTSP, NTP, SSH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWi-Fi\u003c\/td\u003e\n\u003ctd\u003e2.4 GHz, for configuration only (LoRaWAN version)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003eIndoor, IP30; −20 to +60 °C; 0–95% RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions and weight\u003c\/td\u003e\n\u003ctd\u003eLoRaWAN 85 × 85 × 20 mm, 130 g; PoE 85 × 85 × 30 mm, 178.6 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing and colour\u003c\/td\u003e\n\u003ctd\u003ePC and cast aluminium; LoRaWAN white or black, PoE white (Milesight datasheet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, FCC, RoHS (LoRaWAN version also SRRC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSource: \u003ca href=\"https:\/\/resource.milesight.com\/milesight\/iot\/document\/vs121-vs121-p-datasheet-en.pdf\" target=\"_blank\" rel=\"noopener\"\u003eMilesight VS121 \/ VS121-P datasheet\u003c\/a\u003e and the \u003ca href=\"https:\/\/www.milesight.com\/iot\/product\/lorawan-sensor\/vs121\" target=\"_blank\" rel=\"noopener\"\u003eMilesight VS121 product page\u003c\/a\u003e (PDF, no sign-up).\u003c\/p\u003e\n\n\u003ch2\u003eSensor and software: what you get\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eOn the sensor:\u003c\/strong\u003e people counts per region and line, dwell time, privacy masks and data push. \u003cstrong\u003eIn software:\u003c\/strong\u003e room and floor utilisation, trends and reports. Vemco delivers the VS121 with Vemco firmware, ready for \u003ca href=\"https:\/\/vemcogroup.com\/products\/vemspace\"\u003eVemSpace\u003c\/a\u003e workplace analytics and \u003ca href=\"https:\/\/vemcogroup.com\/products\/vemcount\"\u003eVemCount\u003c\/a\u003e zone counting, with a 60-day free trial (\u003ca href=\"https:\/\/vemcogroup.com\/products\/pricing\"\u003esee software plans\u003c\/a\u003e). The hardware price does not include a software licence.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation and accessories\u003c\/h2\u003e\n\u003cp\u003eMount the sensor centrally on the ceiling of the room or zone at 2.3–4 m. The LoRaWAN version needs a USB Type-C 5 V power supply and a gateway such as the \u003ca href=\"\/de\/products\/milesight-ug65-indoor-lorawan-gateway\"\u003eUG65\u003c\/a\u003e (indoor) or \u003ca href=\"\/de\/products\/milesight-ug67-outdoor-lorawan-gateway\"\u003eUG67\u003c\/a\u003e (outdoor) on the same frequency plan. The PoE version runs on any IEEE 802.3af switch. For desk-level occupancy add the \u003ca href=\"\/de\/products\/milesight-vs341-desk-seat-occupancy-sensor\"\u003eVS341 desk sensor\u003c\/a\u003e; for air quality in the same rooms see the \u003ca href=\"\/de\/products\/milesight-am307-indoor-air-quality-sensor\"\u003eAM307\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow accurate is the Milesight VS121?\u003c\/strong\u003e\u003cbr\u003eMilesight states up to 95% recognition rate, tested for line-crossing detection within the recommended detection range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow large an area does one VS121 cover?\u003c\/strong\u003e\u003cbr\u003eAt 3 m mounting height about 12.3 × 5.0 m; at 3.5 m about 18.6 × 7.6 m. Milesight states up to 127.84 m².\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the VS121 battery powered?\u003c\/strong\u003e\u003cbr\u003eNo. The LoRaWAN version is powered by USB Type-C (5 V), the PoE version by IEEE 802.3af PoE or 5 V DC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the VS121 support BACnet?\u003c\/strong\u003e\u003cbr\u003eYes, the PoE version (VS121-P) supports BACnet\/IP as well as MQTT(S) and HTTP(S).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich LoRaWAN frequency do I need?\u003c\/strong\u003e\u003cbr\u003e868M for Europe, the Middle East, Africa, India and Russia; 915M for the Americas, Australia, Korea and most of Asia-Pacific.\u003c\/p\u003e","brand":"Milesight","offers":[{"title":"LoRaWan Version \/ Standard Version: 2.5m to 4m \/ Black","offer_id":53032655585609,"sku":"NF121-Black","price":469.0,"currency_code":"EUR","in_stock":true},{"title":"LoRaWan Version \/ Standard Version: 2.5m to 4m \/ White","offer_id":53032665743689,"sku":"NF121-White","price":449.0,"currency_code":"EUR","in_stock":true},{"title":"LoRaWan Version \/ High Ceiling Mount Version: 5m to 7m \/ Black","offer_id":53032655618377,"sku":"NF121-Black-High","price":479.0,"currency_code":"EUR","in_stock":true},{"title":"LoRaWan Version \/ High Ceiling Mount Version: 5m to 7m \/ White","offer_id":53032665776457,"sku":"NF121-White-High","price":459.0,"currency_code":"EUR","in_stock":true},{"title":"Power over Ethernet (PoE) Version \/ Standard Version: 2.5m to 4m \/ Black","offer_id":53032655651145,"sku":"NF121-P-Black","price":479.0,"currency_code":"EUR","in_stock":true},{"title":"Power over Ethernet (PoE) Version \/ Standard Version: 2.5m to 4m \/ White","offer_id":53032665809225,"sku":"NF121-P-White","price":459.0,"currency_code":"EUR","in_stock":true},{"title":"Power over Ethernet (PoE) Version \/ High Ceiling Mount Version: 5m to 7m \/ Black","offer_id":53032655683913,"sku":"NF121-P-Black-High","price":489.0,"currency_code":"EUR","in_stock":true},{"title":"Power over Ethernet (PoE) Version \/ High Ceiling Mount Version: 5m to 7m \/ White","offer_id":53032665841993,"sku":"NF121-P-White-High","price":469.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0274\/2167\/1459\/files\/VS121.png?v=1761554939","url":"https:\/\/shop.vemcogroup.com\/de\/products\/milesight-vs121-ai-occupancy-sensor","provider":"Vemco Group","version":"1.0","type":"link"}