Low cost Voltage References
                      
Voltagestandard.com
PO Box 1542
Battle Ground, WA 98604 USA
email: doug@voltagestandard.com
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Our product line consists of three DC voltage references and two DMM testers



VREF-01, Precision Voltage Reference
This .01% accurate DC voltage reference is a small, low cost unit that is powered by a 9V battery2.048V, 2.5V, 3V, 4.096V, 4.5V, and 5V units are available.


                                     
  PentaRef, 5 selectable DC reference voltages
The PentaRef provides 5 different DC voltages of your choice between 0.1V and 10V - you choose the voltages to suit your needs.  Picture on left shows PCB with two included 9V Alkaline batteries.  Picture on right shows PCB/batteries installed in optional enclosure with protective acrylic cover plate.




  Vref5-002, Precision Voltage Reference
This .0025% DC voltage reference is AC line powered and only available with a 5V output.



                                           
DMMCheck, DMM Tester
DMMCheck combines a precision 5V DC voltage reference, a precision 1.000mA DC current source, and three unconnected 0.1%, 25ppm resistors (100K Ohm, 10K Ohm, 1K Ohm) for checking Ohmmeter portion of DMM.  Picture on left shows PCB with included 9V Alkaline battery.  Picture on right shows PCB/battery installed in optional enclosure with protective acrylic cover plate.


                                              
DMMCHECK Plus, DMM Tester
DMMCheck Plus includes all DMMCheck features plus 5VAC voltage and 1mA AC current reference sources, four unconnected 0.1%, 10ppm/ºC resistors (100K Ohm, 10K Ohm, 1K Ohm, and 100 Ohm) for checking Ohmmeter portion of DMM, and 100Hz 50% duty cycle signal source standard or optionally choose any two frequencies between 25Hz and 20KHz.  Picture on left shows PCB with included 9V Alkaline battery.  Picture on right shows PCB/battery installed in optional enclosure with protective acrylic cover plate. Please note that a different, larger circuit board with corner mounting holes is used with the enclosure option; please click on the above pictures for details including dimensions.



For further information, please click on a picture or the links at the top of the page.



Prices and specifications subject to change without notice.