Operator presence sensors, from Transforming Technologies, assure compliance with personnel grounding requirements and protect ESD-Safe Work Stations by sensing when an operator is within the protected work area. An operator who approaches the workstation without connecting their wrist strap causes the CM2800 Series Resistance Monitor with the Cyclops™ sensor to alarm. The alarm continues until compliance is achieved, preventing isolated operators from damaging ESD sensitive devices. The Detection Distance is 3"-31" and is adjustable. The Cyclops™ Operation Presence Check Unit is 2-3/64" W x 1-17/32" L x 63/64" H.