The SD-651 is designed to meet the performance criteria designated by UL. Its sensing chambers are sealed against back pressure air flow, dirt, and insects.
5-degree volume control levels, built-in 24V DC forced relay and selectable power (6W, 30W, 60W, 120W): these are only some of the best-in-class features of Honeywell’s volume controller range! Design
Charge decay <0.1 Sec Velcro band available in black Comfortable wristband with 4mm snap 1 Meg Ohm resistor for added safety Standard Banana jack Alligator clip