Check the listing for details. Vintage Sensitive Research Instrument Corp. Polyranger Universal DC. Condition: Used. Listed at 65.00 USD. This vintage Polyranger Universal DC instrument from Sensitive Research Instrument Corp. is a valuable addition to any collection. Made in the United States, it is a high-quality piece of equipment that is perfect for testing and calibrating various electronic systems. With its unique features and reliable performance, it is sure to be a sought-after item among enthusiasts and professionals alike. The instrument is in excellent working order and has been well-maintained over the years. It comes from a trusted brand and has been designed to meet the highest standards of accuracy and precision. Whether you're a collector or a seasoned professional, this Polyranger Universal DC instrument is an exceptional choice for your needs. Vintage Sensitive Research Instrument Corp. Polyranger Universal DCModel CSerial Number: 501519I don't know how to tested. so no test has been run on this item.Condition: Good Condition! Please see pictures! Smoke Free Home and Pet Free Home Too! Kept in a box for protection! Shipping in the US only! Shipping will be same or next business day after payment is received. Standard shipping delivers with 3-5 business days. Tracking number will be provided and insurance!!!! Returns are not Accepted,