Four-Price to MDB retrofit kit for vending machine

  • Replaces all Four-Price coin changers

  • Connects to the original 8+1 changer socket

  • Allows connecting multiple MDB peripherals

  • Full Audit with optional 2X16 display

  • Version "Plus" DEX and Cashless ready

Availability: Available now (in stock)
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The FP1 Conversion Kit is a small electronic interface enabling you to discard the old discontinued Four-Price coin changer (24v or 110V) and replace it with state-of-the-art MDB peripherals such as multiple-tube coin changer, bill acceptor for the basic version and the addition of a cashless system for the "Plus" version. The FP1 is a "Plug & Play" interface connecting to the original 8+1 Jones socket in the vending machine.

Additional Description


  • Accepts MDB coin changer and bill validator "PLUS" version allowing DEX and cashless functionality 
  • Vend price adjustable by dipswitches 
  • Ajustable scale factor for price base 1, 2, 5¢ (by default), 10, 20, 25, etc  
  • Works with US/Canada currencies and others 
  • Token/Coupon free vend or value settings 
  • Optional 2x16 LCD display showing Vend Price 
  • Selectable language (English, French, Spanish, Portuguese) 
  • Provided with a universal power supply (100-240vac/50-60 Hz) and all required cables






Use it for...
  • Accepting bill acceptor
  • Increase change capacity
  • Install a cashless device (Plus version only)
  • Keep track of sales via DEX (Plus version only)


Vend price adjustable from 5¢ up to $12.75, in nickel increments, in the usual USA/Canada Price Base configuration.
In special Price Base configuration, vend price can go much higher by modifying the increment.  That increment is field programmable from 0.05 up to 12.75 allowing using the SP-1 in countries like Chile, Colombia, Mexico, etc. (Minimum vend price 0.05; maximum vend  price 3251.25)
Messages to the customers and full programming are available in English, French, Portuguese, and Spanish thru the optional 2x16 blue LCD display.
Full audit available on the LCD display (basic version) or by DEX download (Plus version).
Programmable to follow or ignore the Accept Line coming from the machine.
Bright red LED for Accept Line detection.
Capable of accepting a Free Vend or Value token.
Programmable ID of the machine (for DEX usage)
Declining sales when no coin changer connected.
Small size and small weight for easy shipping worldwide.
Quick & Easy installation
Bright blue 2x16 LCD display in option
Programmable with Dollar symbol ($), Euro symbol (€), or no currency symbol.
Cashless & DEX available in the Plus version