Can test farmland, green land, forest, water area, tidelands and so on regular & irregular area. When regular you can test the area by several points; when irregular you can walk follow the area border, then the instrument automatic count. Unit is square meter & Chinese acre. It also can test distance and perimeter. You can input price, you can count sum of money immediate. You can find the number of satellite, it show the precision to us. The number of satellite is more the result precision is higher.

- Measuring range:  1-60000 Chinese acre; 500-9999999 square meter (1Chinese arce=666square meter).

- Measuring distance range: 0-999999.9m

-Test unit: meter, square meter & Chinese acre

- Precision:1-10Chinese acre  ; above 10 Chinese acre +1%

-Stored datum:  2000Groups

-YMJ-B add RS-232 link with computer by software

-Battery:6v

YMJ-I General

YMJ-II add RS-232 link with computer, you can put the datum into computer. It can show the outline of the test area. You can store the area picture, copy, modify and count.（software is free）