Storage
Never place your fishfinder in a closed compartment. High
temperatures could damage internal electronic parts.
Guarantee Conditions
We assure you this product is free from any defects in ma-
terials and workmanship. The warranty coverage is One
Year from the date of purchase, during which if the unit fails
to perform as described in the product's written specifica-
tions, we will repair or replace it free of charge. As for
products exceeding the warranty coverage, the mainten-
ance department will charge customers some fees accord-
ing to the real situation.
This warranty is void if damage or malfunction is due to abuse,
misuse, accident, failure to reasonably maintain, improper
installation or use, or unauthorized alteration or repairs.
Our company retains the final right to judge or repair the
defected products.
Our company holds the right to update the products. And it
is not obligated for our company to update the former prod-
ucts according to the new standard.
Specifications and features
Technical specifications :
Display:
Resolution:
Depth Capability
Operating frequency 200/50 kHz
Sonar coverage
Power Requirment
Echofish 820 – Installation & Operation manual
4.3"(110mm),
Viewable Backlighting
480H x 272W with 65,536 colors
700 m (2100 feet)
12°/35° Cone Angle
10~18 volts DC
TFT
LCD
Sunlight
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