Seco-Larm Enforcer E-961-S90WQ Single Photoelectric Beam Sensor90Ft (30m) sensing distance for protecting large openings or wide roadways.Weather-proof to IP66 standards for indoor and outdoor use.Mounts flat or at a 90-degree angle to the wall with no need for extra brackets.Adjustable lens angle.Transmitter power can be adjusted to match local environment.1A relay output (NO/NC/COM).AC/DC 10~24V operation, non-polarity connection.Internal terminal block for easy wiring.Mounting screws included.