Approximately infrared (dual simultaneous light beam) distance: outdoor 30, 60 and 100m Outdoor protection cover: anti-raining, anti-mist and anti-frost Strong light resistant: up to 50,000Lux With embedded auto strong light filter device to avoid the effect from sunshine and car light Designed air-resistant Detection will auto enforce the sensitivity (AGC circuit) Twin frequency radiate Embedded 180 degrees horizontal rotation