1 CMPC model Sensorswitch by Acuity; CM PC, good for odd/small spaces, vestibules, bathrooms, hallways, etc. Combination On/Off Automatic Dimming Control Photocell Sensor, Ceiling Mount, Low Voltage, Single Zone, 14-160 Degrees temp, 360 degree coverage, Color: White The CM is a low voltage sensor that easily mounts directly to a ceiling tile or a metallic grid. Ceiling mount sensors are offered in a multitude of configurations which address many applications. Lens options include large motion extended range, small motion standard range and bi-directional for hallways. Multiple low voltage sensors can work together to supply the ideal solution for oddly shaped rooms or large open office areas. For rooms with obstructions, these sensors are also offered with Dual Technology, which adds Microphonics? detection to the Passive Infrared (PIR) detection. You are buying the item shown, in the quantity stated. I offer discounts for multiples. Pricing is for one. 52301-23 Add a map to your own listings. FREE Trial! Shipping: I am committed to shipping by the 2nd business day after order is placed and paid for. In many cases, items are shipped same or next day. Shipping is by USPS Ground Advantage for lightweight packages, or Priority Mail for others. I also utilize UPS Ground. I do NOT mark up shipping and never charge you for materials, boxes, tape, etc. Payment: Please pay for item upon checkout or within 3 business days of getting an invoice. Warranty: All items are warranted as described and useful as intended for a 30 day period from the date of arrival. I am not a manufacturer or retailer, and do not honor manufacturer warranties. Item evaluations: In cases of damages, non-receipt, shortages, and loses during transit, all pieces in any multi-lot offering will be presumed to have an equal and proportional value to that of the entire lot. Please contact me if you need to return an item. Thank You! I have sold since 1999 and take pride in serving my customers to the satisfaction of their needs. Instead of leaving negative or neutral feedback, please contact me FIRST to resolve any problems with your shipment or your merchandise.