Just a reminder. LCDs can fail if stored under certain conditions. Lowrance recommended to me not to store any LCD unit in an area that exceeds 150 degrees F. I measured the temperature under the canvas cover on my boat in 90 degree weather. The meter read 163 degrees F near the area where my unit mounted. Made a believer out of me. Lowrance replaced my 102C with a 510C at no charge. The 102C was over a year out of warranty. I've told this tale before.
LCD displays do have specifications which we tend to ignore on occasion.
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