The simplest and most economical type of controls include our analog and mechanical indicators and switches to protect the blower and motor from mechanical surge and overload, high blower bearing temperatures and high blower (or blower bearing) vibration. The Hoffman & Lamson Analog Meter Relay monitors motor amperage and air flow and automatically shuts down the blower motor when amperages fall outside the designated operating range. It is designed for constant speed applications.
Hoffman & Lamson is part of Gardner Denver, Inc., a leading global manufacturer of highly-engineered, critical flow-control products, Gardner Denver is headquartered in Milwaukee, Wisconsin, USA and has facilities in more than 30 countries. To learn more about the company, visit