STOP SIGNAL LIGHT GATE/LOOP DETECTOR CONTROL SARASOTA 535B/MS SARATEC TRAFFIC OUT OF SARASOTA, FLORIDA. I GOT THESE AT A CITY AUCTION ALONG WITH SOME TRAFFIC LIGHTS. THERE IS SOME OF THE WRITING ON THE ITEM. OPERATING INSTRUCTIONS. FREQUENCY. SENSITIVITY. FAULT: OPEN LOOP= 2 SEC BURSTS/16HZ FLASH. HISTORICAL FAULT. CONTlINOUS FLASHING: OPEN = 16HZ: SHORT= 4HZ: 25% DRIFT= 1HZ. CONNECTOR CODE. I DON'T KNOW WHAT THIS IS ALL ABOUT, BUT SOLD AS IS.TRAFFIC FOR INTERSECTION VEHICLE USE. WORKS WITH RELAY. PLEASE ADD 9.00 FOR SHIPPING TO All 50 STATES. Check out my other items! Due to materials needed, item could not be tested. SOLD AS IS! PLEASE DO NOT BID AND PAY WITH PAYPAL WITHOUT A CONFIRMED PAYPAL ADDRESS. SEND MONEY ORDER OR PERSONAL CHECKS(CHECKS TAKES 10 DAYS TO CLEAR) IF YOU DO NOT HAVE A CONFIRMED PAYPAL ADDRESS!!!!! Please Note: Due to some people using Paypal fraudulently, we must insist that all Paypal payments include Confirmed Shipping Address. Paypal payments without Confirmed address will be rejected. If you want the item shipped to a different address, you'll have to send a Money Order or check, Thank you for understanding that we have to protect ourselves against fraudulent chargebacks.