Specifications include, but are not limited to: Portable Traffic Signal Rentals for Traffic Control. The portable traffic control system shall consist of towable, trailer-mounted, self-contained units. Each unit shall be equipped with two LED traffic signals and designed to utilize solar electric modules with storage batteries as the primary power source for the traffic signals. Environmental Conditions Unless specified otherwise, all components shall be constructed to meet or exceed the following environmental conditions: Temperature Range: -40F0B0F to 160F0B0F. Vibration: Components shall survive all vibration in any axis normally encountered during transportation. Humidity: 0% to 100%. Wind: Each unit shall be capable of remaining stable and operating in wind up to 80 mph. Controller Each unit shall include a solid-state, digital, micro-processor based, traffic controller capable of operating the signals in accordance with the Manual on Uniform Traffic Control Devices (MUTCD) requirements and NEMA standard TS1. The controller shall not be able to be powered unless the conflict monitor is installed and functioning properly. The controller shall be capable of fixed time, traffic actuated and manual control operation.