Make sure your sender unit in the tank uses one of the ranges listed below to ensure accurate display.

Selectable OHMS Range Options: 0-90 /10-180 / 240-33 / 73-10 / 0-190ohms 

7 Color Blacklight Options: red (default) →green → blue → white → yellow → yellow green → orange → Purple → (automatic).

Operating Voltage:9-32VDC

Install Diameter: 52mm(2-1/16'')

Grade Of Protection :IP67

Includes Bulkhead Screw for easy install.