Drum Alarm High Level, 3/4 in Black polypropylene pipe 2 in Buttress thread, Dual alarm

DHB-PF from Gizmo Engineering is a robust, uninterruptible lithium battery-powered high-level alarm designed for industrial drums, alerting operators to prevent overfills during automatic liquid filling operations. Featuring a protected polypropylene float switch inside a rigid pipe, it activates a loud warbling buzzer (up to 102 dB) and flashing LED when liquid reaches the set depth, ensuring safety in noisy, corrosive environments. Its 2-inch Buttress thread drum plug mount fits standard plastic drums securely, with tool-free adjustable depth from 2 to 7 inches (175 mm) via a thumbscrew for precise customization.