Our Warning Devices are a practical and reliable solution for ensuring safety. With a yellow colored housing and stainless steel nuts and bolts, these devices are built to last. They are polarity and voltage protected, providing added security. The slotted mounting centers at 3.25" make installation easy, and grounding straps are included for convenience. Please note that these warning devices do not meet SAE requirements and should not be used as a back-up alarm. Available in 87 and 107 decibels, these devices fit most makes and models.