• Coverage of 12mx12m (40’x40’)• Pet friendly up to 36kg (80lb) with Variable Pet Threshold (VPT™)• Coverage 15mx15m (50’x50’)• 2-Way wireless provides higher security, reduced wireless congestion and Remote Control & Diagnostics• Intelligent Digital Signal Processing• Simple bracket installation• Wall tamper suitable for corners• Includes two 3V long-life lithium batteries• Available in one-way wireless models with single battery