RIKEN RX-415 HC O2 Detector | Calibration Guide | Merchant Navy Life | Portable Gas Detector | RIKEN

[@TharukaBro]

Your design is excellent. Such designs are rare today. I really appreciate this design. Congratulations on creating more like this. 2

[@MerchantNavyLifes]

Thanks a lot Bro!! 😇😇

[@feedrock7446]

Thanks a lot for the upload!!

[@MerchantNavyLifes]

😇😇

[@dkraj5118]

Valuable Video!! :) :)

[@MerchantNavyLifes]

😇😇

[@vinwaruna]

wow ...

[@MerchantNavyLifes]

😇😇