1. The meter has one-year warranty. If the instrument works abnormally, please send the whole instrument to our company for maintenance

2. Provide users with spare parts and lifelong maintenance services

3. Provide the users with the meter calibration service

4. Free technical support for long term

Calibration:

1. Verification period: the period is suggested to be one year.

2. Send back for calibration within one year does not charge any calibration fee except freight cost, Out of one year the calibration fee will be charged.

Maintenance:

The meter has one-year warranty.

1. Unavailability caused by non-human factors
   1) Within one months after receiving the goods, we can give you the item amount. And the freight out and home will on our charge. 
   2) After receiving the goods for more than one months but no more than one year, you can send back for maintenance.The maintenance costs, freight and the resulting tariffs will on our charge.
   3) After a year, the maintenance costs, freight and the resulting tariffs are on your charge.

2. Unavailability caused by human factors
   1) We are not in charge of any man-made damage. The maintenance costs, freight and the resulting tariffs are on your charge.