About HSI Fire & Safety Group
Since 1979, the World's Leading Manufacturer of professional Smoke, Carbon Monoxide and Heat Detector Testing products and tools. Environmentally friendly aerosol Smoke Check, Smoke Detector Tester is the original, accept no imitations. The Versa-Tools line of professional equipment, available in both open and enclosed delivery testing methods, were designed with you in mind, No Climbing on Ladders, No Heavy, Bulky cords to trip on, No Reaching around Obstacles. Our products are UL Listed, and Manufacturer approved.