Check the listing for details. Veeder Root COUNTER 779086-207 Panel Mount Totalizer 12V 1.5W NON-RESET 6-DIGIT. Condition: New – Open box. Listed at 12.99 USD. Offered to you today for your immediate purchase and FREE fast same day ship out in the USA ONE New old Stock VEEDER ROOT 779086-207 Panel Mount TOTALIZER/ COUNTER 12V 1.5W NON-RESET 6-DIGIT7790 series electromechanical counterface mount 12V 96 ohm coil 1.5 va Business and office equipment as well as vending and amusment machinesindustrial , labrotory and cash instrumentsVeeder RootElectromechanical Counters, 7790 Series Information 12 VDC 6 Figure Display 999,999 ( it will roll over at 999999 to 000000 , 000001 etc)Non-Reset up to 600 Counts Per MinuteCompact SizeThe series 7790 is a non‑reset totalizer that delivers excellent performance and reliability characteristics for a minimal price. Subcategory:Electromechanical TotalizingColor:White Text on Black BackgroundMounting:Panel MountConnections:Wire LeadsContinuous Operation:YesApprovals:UL;CSA Face is 1.53 x 1.81 inch total length 2.18"Hole needs to be a minimum of 1"tall by 1 5/16""wide Net Weight:3.2 OZ PS> I checked the ohm value, it is right around 96 to 104 ohms on all of them. Since they are a 12volt unit I tried triggering them with a small 9.6 volt battery. It doesn't triger the count. you need a 12 volt battery to make them count and it counts as fast as you can tap the wire to the 12 volt battery ( see last two photos of one I tested ) VEEDER-ROOT MPN: 779086-207 12VDC 1.5W NEW VEEDER ROOT MODEL 779083-207 TOTALIZER/ PULSE COUNTER. 12VDC, 1.5W, 2-WIRE, NON-RESET, PANEL MOUNT. FACE MEASURES 1-1/2" WIDE x 1-3/4" LONG. location: 3e