This motion detector can distinguish between a human being and a small domestic animal. It is designed for households with cats, rodents and small or medium-sized dogs: up to 40 cm high. Placed in passages and accesses to the home, it monitors and reports all break-in and intrusion attempts. Its small size lets it integrate seamlessly into your interior. Specifications Brand: somfy Power Source: Corded Electric Item Weight: 0.07 Kilograms Maximum Range: 40 Centimeters Mounting Type: Wall Mount Number of Batteries: 1 CR123A batteries required. (included) Manufacturer: Somfy Part Number: 2400989 Product Dimensions: 2.4 x 1.97 x 4.53 inches (6.1 x 5 x 11.5 cm) (6.1 x 5 x 11.5 cm) Item model number: 2400989 Batteries: 1 CR123A batteries required. (included) Is Discontinued By Manufacturer: No Style Motion detector compatible with: small animals Item Package Quantity: 1 Number Of Pieces: 1 Included Components: 1x Movement Detector, 1x CR123A Alkaline Battery Batteries Included: Yes Batteries Required: Yes Battery Cell Type: Lithium Ion