Detailed Answer
Marine ex-proof remotes: equipment on oil tankers, chemical carriers, LNG carriers and other hazardous-cargo vessels needs explosion-proof certification (ATEX/IECEx Category II, Zone 1/2). LDER and XINGJIA ex-proof models apply. Marine ex-proof remotes use intrinsic-safety design + ex-proof housing and cost about 2× normal. Mandatory for hazardous-cargo vessel work.
| Certification | ATEX/IECEx |
| Applicable | Zone 1/2 |
| Price | ~2× |
Note:Keep the ex-proof certificate onboard with the vessel for inspection.