Interstate V-135 Deer Whistles Protect Semi's or Motorhomes, Case of 12 Units Protect truck fleet. RV's or motor homes from deer accidents . Used by many railroads on locomotives to deter deer. The V-135 Hornet Interstate deer repeller is a 12 volt truck accessory with a powerful 135 dB deer whistle with about a 2,000 foot wave carrying length. Power and range give the V-135 deer whistle the most effective design for use on interstate highway and in rural high-risk areas. A superior unit for over the road trucking companies. Both the decibels sound pressure and the volume of sound is greater than the standard hornet. The Hornet Electronic Deer Avoidance Systems, used with driver awareness, reduces your risk of hazardous animal/vehicle collision by more than 70%. V-135 Interstate Electronic Deer Whistle Features Almost Double the Power Twin Electronic Deer Whistles. Color Black. Sound Pressure Level 135dB A.S. . Operating Base Frequency 4.8kHz /- 0.5 kHz WV Ultrasonic Wave 18,000 to 24,000 Hz. Wave Carrying Length 2,000 Ft. Effective Range 1,000 Ft. Operating Voltage Range 8-16 VDC. Current Consumption 20mA max. at 12 VDC. Physical Size 8.25 inches long by 3.25 inches wide. Sound Generator Spacing About 4.25 inches apart. NOTE Use only when vehicle is in motion due to sound pressure of this unit. Deer Avoidance Kit Contents The 135 Interstate Hornet 4 inch pigtail wire with weather tight connector Standard automotive wiring harness Standard automotive dash control switch Two adjustable installation brackets Nuts and wire ties. Good Driver Awareness Helps You Get the Most from Your Hornet. Always turn on your Hornet when driving in high risk areas. Always use headlights in high risk areas. Be alert. Pay attention road sides. Blow your horn at the first sighting of an animal. Never swerve into oncoming traffic or attempt to dodge an animal by driving off the road. Call for Fleet Pricing. This item ships from a separate warehouse and may require extra time for delivery.