| 1.High precision 1/30000 and 1/60000 model can be selected, |
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| 2.Signle-point calibration and three-points calibration function for high precision, |
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| 3.Special design for overload, transportion, |
| 4.It can be used AC power or size C dry battery, |
| 5.Anti-dust cover for better precision and protection and RS232 interface, |
| 6.Optional accessory: back side display, |
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