OPTEX AX-200TFR Battery Operated Photoelectric Detector, 8.5 Inch X 3.5 Inch X 6.4 Inch, 3.6 Volt, 13.09 Amp-Hour LSH20 Lithium Batteries , 810 uA, 200 ft Coverage

Features

• Long life battery (batteries included)
• Easy battery replacement
• Triple tamper functions
• Low battery output and LED indication
• Intermittent output function
• Compatible with numerous wireless transmitters
• Battery saving time function for wireless tranters
• Selectable 4 channel beam frequencies
• 99% beam blocking stability
• A.G.C circuit
• IP55 structure
• Adjustable beam interruption time
• Perimeter, interior zone
• 3 years transmitter, 5 years receiver battery life