Check the listing for details. Service Guide For Agilent 53131A 225mhz Universal Frequency Counter. Condition: New. Listed at 98.00 USD. SELLING 1 NEW FACTORY SEALED ASSEMBLY-LEVEL SERVICE GUIDE ONLY FOR AGILENT 53131A COUNTER. .SHIPS USPS GROUND FREE FROM 73162 TO LOWER 48 STATES.ITEM IS GUARANTEED NEW/FACTORY SEALED FOR 24 HOURS AFTER TIME RECEIVED TO ORIGINAL PURCHASER. BUYER MUST EMAIL SELLER IF MANUAL IS DEFECTIVE WITHIN 24 HOURS AFTER RECEIPT, OR GUARANTEE IS VOID.IF DEFECTIVE, BUYER MUST RETURN ITEM TO SELLER WITHIN 7 DAYS OF RECEIPT OR GUARANTEE IS VOID. WITHIN 3 DAYS OF RECEIPT, SELLER WILL REFUND TO BUYER THE PURCHASE PRICE + ORIGINAL SHIPPING ONLY .SELLING AND SHIPPING TO USA BASED BIDDERS ONLY..NO RETURNS. BY PURCHASING ABOVE ITEM, BUYER ACKNOWLEDGES THAT THEY HAVE READ AND AGREE WITH ALL THE TERMS OF BUYING AND SELLING ON EBAY AND AGREE WITH ALL THE TERMS OF THIS SALE..PAYMENT DUE WITHIN 4 CALENDAR DAYS FROM SALE DATE.3 BUSINESS DAYS PROCESSING AFTER DATE PAID. THANKS FOR PURCHASE!