Answer
May 13, 2016 - 01:37 PM
Garnet 709-P3 Seelevel II Tank Monitor System has a serial number located on the back of the display. There is a sticker with the model # and have a - after the model. The numbers following is the serial number of that unit. To find out the Manufacturers date you would have to contact Garnet Technologies 877-668-7813 with the serial number to find out the manufacturers date. Ther do not have this information on the systems. To find the Revision date this is located on the back on the display at the top. It will be Imprinted into the display.
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