The low-profile vIRsa is unobtrusive, and adjusts to any installation environment with a flexible film adhesive which conforms to curved surfaces. For fast troubleshooting, a separate holder remains attached, allowing easy removal and replacement of the emitter. A blue LED flasher offers increased visibility, but may be hidden during normal operation. In addition, a translucent PCB improves the integrity of electrical connections, while a built-in resistor protects against over driving.