Check the listing for details. Acuity Controls CM 10 Large Motion. Condition: Used. Listed at 39.00 USD. The Acuity Controls CM 10 Large Motion is a passive dual sensing PIR motion sensor designed for ceiling mounting. Its advanced technology ensures accurate detection of motion, making it ideal for industrial automation and motion control applications. The Acuity brand is known for its quality and reliability, making this sensor a trusted choice for businesses seeking precise and efficient motion detection.