Novelda : XeThru Min (The most accurate Presence Sensor) Detects moving and still people , Range: up to 2m , Size: 3x30mm Spec : Range (SW configurable): - Approach: 0 - 2 meter - Leave: 1.2 meter Response time - Approaching: <0.5 s - Leaving: Current <7s Power consumption - User absent: 1-2 mW* - User present: 5-10 mW*https://www.xethru.com/novelda-presence-sensor.html