• Reduces forgotten open freight doors due to human error.
• Reduces liability from items dropped on roadway.
• No wires to hook up or disconnect.
• Easy 5 minute installation.
• Works with all styles of truck doors.
• Does not change the way door operates.
• Secure, encrypted communication.
• Extra long-life replaceable batteries.
• Low battery alarm.
• Super-bright flashing LED and beeping notification.
• Works even when the truck power is off!