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Keithley 7164M scanner card
The Keithley 7164M is a refurbished Scanner Card featuring relays with mercury-wetted contacts for high reliability, current switching capacity, and bounceless operation. Mercury-wetted relays also ensure consistent contact resistance of less than 400mohms over rated life of more than 1 billion closures (cold switching), or 100 million closures at maximum signal levels. Contacts are rated for resistive loads of 30VA.
