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 Henan Oceanus Import & Export Co., Ltd, as the professional manufacturer of the measuring instruments, mainly products including the portable gas detector, online gas monitor, PH meter, moisture meter, thickness gague.

For our products we provide the following services:

1. Gas detector: technical support and warranty of 12 months, free calibration service one time every year. 

2. Other instruments: with the warranty of 12 months.

But for our sold produts, all we could provide the repair service through the whole working life.

If any feedback on our procudts, also pls contact us, this will be very helpful for our improvement.