Impedance Meters

EIM-105 Prep-Check™
For ECG and EEG. Highly affordable. Perfect for testing electrodes and preps for small numbers of electrodes. Available in 10 or 30Hz versions.

EIM-107-Multi-Lead Prep-Check™ Plus
For all EEG and ECG stress testing. Economical, fast, automatic, accurate testing of impedance and offset voltage of up to 160 electrodes using quick-connect multi-pin headbox connector.

EIM-107-20A Prep-Check™ Plus
Specifically designed for Polysomnography studies! Economical, fast, automatic, accurate testing of impedance of up to 20 electrodes using 0.060" safety DIN connectors. Lighted display for added convenience.

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Latest News

See Us At …. General Devices is attending the following EMS meetings

General Devices is presenting its family of products at the following EMS meetings – if you are there, be sure to stop by and see what’s new. Read More...

Puzzled about LifeBot? ... Then read this...

In the past few weeks, many of General Devices’ EMS customers have contacted me regarding representations and claims regarding telemedicine and EMS workstations made by Mr. Roger Heath that have appeared on his LifeBot website and in his mass mailings. Read More...

Baton Rouge EMS Telemedicine system featured in Carolina Fire Rescue EMS Journal

BR Med-Connect is an EMS telemedicine system recently installed in East Baton Rouge Parish (BR), Louisiana. Currently in a pilot phase, the system is fully functional and is now being used for actual patient care. Read More...