Smart Occupancy Sensors — In Tbilisi
Smart Occupancy Sensors (Presence Sensors) are high-precision IoT devices that detect human presence in room using microwave (mmWave) or infrared (PIR) technology and recognize not only active movement but also micro-movements (breathing, finger movement, keyboard typing) and provide 99% accuracy in determining human presence, making them ideal for smart home automation, energy-efficient lighting, HVAC control, security systems in apartments, houses, offices, hotels, hospitals in Tbilisi and throughout Georgia. These detectors detect person sitting motionless (reading, working at computer, sleeping), which is impossible for regular PIR motion sensors that require active movement and often make mistakes (light goes off when person sits motionless). LAGI offers full range of smart occupancy sensors: mmWave radar sensors (24GHz, 60GHz, 5-10m detection, micro-movements, breathing), PIR+ sensors (improved PIR + temperature, 3-5m detection), combined mmWave+PIR (dual technology, 99.9% accuracy), Wi-Fi occupancy sensors (direct router connection), Zigbee occupancy sensors (low power consumption, mesh network), ceiling mount models (360° detection), wall mount models (120°-180° detection), battery models (CR2450, 1-2 year lifespan), USB powered models (constant power). All sensors compatible with Alexa, Google Home, HomeKit, Home Assistant ecosystems.
Main Types and Technologies of Occupancy Sensors
- mmWave radar sensors — 24GHz or 60GHz microwave radar, detects micro-movements (breathing, finger movement), detection radius 5-10m, accuracy 99%, ideal for bedrooms (detects sleeping person), offices (detects person working at computer), bathrooms.
- PIR+ improved sensors — improved PIR technology + temperature sensor, detects small movements, detection radius 3-5m, accuracy 95%, cheaper than mmWave, ideal for corridors, living rooms.
- Combined mmWave+PIR — dual technology (mmWave + PIR), accuracy 99.9%, detects all movement types, false positives 0.1%, ideal for critical applications (hospitals, security).
- Wi-Fi occupancy sensors — direct Wi-Fi router connection (2.4GHz), no hub needed, smartphone app, instant notifications, ideal for small homes (1-5 rooms).
- Zigbee occupancy sensors — low power consumption, mesh network, hub required (Zigbee hub/gateway), battery 1-2 years, ideal for large homes (10+ rooms), multiple sensors.
- Ceiling mount sensors — 360° detection angle, whole room coverage, ideal for offices, living rooms, bedrooms, height 3-5m.
- Wall mount sensors — 120°-180° detection angle, ideal for corridors, bathrooms, entrances, height 1.5-2.5m.
FAQ — Frequently Asked Questions
Occupancy Sensor and Motion Sensor both detect person, but there is important difference between them: motion sensor (PIR) — detects only active movement (walking, hand waving), doesn't detect motionless person (sitting, reading, working at computer, sleeping), problem: light goes off when person sits motionless for 5-10 minutes, accuracy 80-90%, false positives (pets, curtains). Occupancy sensor (mmWave) — detects micro-movements (breathing, finger movement, heartbeat), detects motionless person (sitting, reading, working, sleeping), light doesn't go off while person in room, accuracy 99%, false positives 0.1%. Application: motion sensor — corridors, entrances, where person moves. Occupancy sensor — bedrooms, offices, living rooms, bathrooms, where person often sits motionless. Recommendation: if you need light not to go off when you sit motionless → occupancy sensor necessary.
mmWave (millimeter wave) radar occupancy sensor works on microwave radar principle and detects human presence by micro-movements of body: 1) radar emits microwave signal (24GHz or 60GHz, safe for humans), 2) signal reflects from human body and returns to sensor, 3) sensor analyzes reflected signal and detects micro-movements: breathing (chest movement 12-20 times per minute), heartbeat (60-100 times per minute), finger movement (keyboard typing), eye movement (reading), 4) if micro-movements detected → person in room → light stays on. Advantages: detects person behind wall (radar passes through thin walls), doesn't require direct line of sight (PIR requires), works in complete darkness, doesn't react to pets (small size), doesn't react to curtains/plants. Detection radius: 24GHz → 5-8m, 60GHz → 8-10m. Accuracy: 99% (detects sleeping person).
Occupancy sensors allow creating intelligent automation scenarios that work perfectly: 1) intelligent lighting — "turn on light when person enters room", "turn off light when person leaves room (not after 5 minutes, but immediately)", "dim light to 20% when person sleeps (breathing slows down)", energy efficiency 50-70% (light never stays on in empty room). 2) HVAC control — "turn on heating/AC when person in room", "turn off HVAC when room empty", energy efficiency 30-50% (HVAC doesn't work in empty rooms). 3) security — "notification if person detected in room when house should be empty (alarm armed)", "turn on camera when person enters room". 4) bedroom — "turn off all lights and appliances when person sleeps (breathing slows down)", "turn on night light if person wakes up at night (breathing speeds up)". 5) office — "turn on computer monitor when person sits at desk", "turn off monitor when person leaves desk for 5 minutes". 6) hotel — "turn on everything when guest enters room", "turn off everything when guest leaves room".