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FIELD NOTES / Device knowledge
A display is an interface, not a laboratory report.
Keep screen features separate from independently measured results.
What an indicator represents
A display may communicate a battery estimate, operating mode or liquid estimate. Its presence does not tell you how the value was derived or how accurately it reflects remaining use.
Name the feature carefully
Editorial records should describe what the manufacturer states, and should avoid translating a screen feature into an unsupported claim about accuracy, safety or lifespan.
Read in context
Check the model manual for indicator definitions. This article uses a FOGER BIT model image as a labelled reference subject; it does not report a hands-on assessment of that device.
Source note
FOGER BIT 35K manufacturer reference, checked 17 October 2026.
