ASTRO-MED GRASS P122 STRAIN GAGE, 7DA AMPLIFIERS & 7P20C

ASTRO-MED GRASS P122 STRAIN GAGE, 7DA AMPLIFIERS & 7P20C PLEASE NOTE:  THE RPS-212B PICTURED IN THE PHOTOS IS NO LONGER AVAILABLE & IS NOT INCLUDED. Astro-Med Grass A.C./D.C. Strain Gage Amplifier, Model P122B Polygraph Differentiator, Model 7P20C See additional 12 photos below. Manufacturers Description: The Grass P122 A.C./D.C. Strain Gage Amplifier is a high gain, low noise, stabilized DC amplifier with versatile input switching to permit operation as an AC amplifier. The P122 is intended to provide a signal condition interface for data acquisition systems, oscilloscopes, tape recorders and other devices. One 7DA DC Pen Driver Amplifier is required for each preamplifier channel (excepting the 7P511 and 7P122 Preamplifiers) to drive the pen oscillograph. It has a front panel jack for connection to tape recorders, A/D converters, oscilloscopes and other ancillary instruments. The 7P20 Polygraph Differentiator is a solid-state, general purpose differentiator that produces truly mathematical derivatives of analog input voltages from the Model 7DA Driver Amplifier. Typical applications include: velocity of eye movements (ENG), rate of change of ventricular or peripheral blood pressure, and respiratory flow from volume or acceleration from rate. There are a few scratches and stains on  the cabinet. 90 day warranty. University & Fortune 1000 Company Purchase Orders with open billing, Net 30. Overall Dimensions: 21"W x 16"F-B x 11"H Net Weight: 37 pounds NATUS NEUROLOGY Payment I accept the following forms of payment: PayPal Shipping & Handling Please check eBay's Shipping & Payment tab UPS Ground FREE scheduling, supersized images and templates. Get Vendio Sales Manager. FREE scheduling, supersized images and templates. Get Vendio Sales Manager. Over 100,000,000 served. Get FREE counters from Vendio today!