1) Small areas under one acre are generally not recommended for use, as there may be some discrepancies between the measured results and the actual situation

　　2) Before first use, the battery must be fully charged using a power adapter or car power adapter

　　3) Adjusting the screen and brightness (screen brightness directly affects battery life)

　　4) Please wait for 1-2 minutes before the first measurement to ensure stable ephemeris download, which can improve the accuracy of the first measurement. 5) Being too close to buildings or trees underground does not affect positioning, but it can also affect measurement accuracy. The technical indicators in the manual are measured without interference. Can meet the needs of farmland operations. If used in forest land, the corresponding accuracy will be reduced.

　　5) If the slope function is not used to measure the area, all measurements are corresponding to the horizontal projected area.

　　6) When the number of satellites is more than 5 or when measuring large areas of farmland, the measurement accuracy is relatively high.

　　7) Avoid direct sunlight on the LCD screen, resulting in unclear display.

　　8) The instrument uses ordinary No. 5 Alkaline battery or No. 5 rechargeable battery (remember: only instruments with charging function can use rechargeable batteries), and the battery must be replaced or charged in time when the power is insufficient.

　　9) Please record important measurement data in a timely manner, as instruments cannot guarantee long-term storage of data.

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