Due to the nature of weights, only class F2 /M1 or below can be 2nd calibrated.
1 Year warranty period.
Offer using instruction and guidance.
After the goods are received, customer can contact us for after-sale service if there is any problem.
If products were confirmed after recei- ved, but have tolerance problem during the usage, we can also offer free calibration, customer need to pay for the delivery cost.