VEXEN electric ALIO MS-360-08EW being so slim is an excellent choice for offices, conference rooms, schools, etc. Fits in any ceiling, goes with any light. Following quick and easy installation, rotary knobs easily accessible under a cover let to adjust switch-off delay and lux value. Sensor offers excellent detection capabilities and can be adapted to the specific conditions. VEXEN electric ALIO MS-360-08EW motion detectors have 3 years warranty.