日本Icom IC-F61ATEX 超高頻UHF  防爆對講機+ 防爆電 IP67 可入頻道

SUPERIOR WATERPROOF PROTECTION
Firefighters, police, security and public utilities. Each profession has its own unique challenges, but all have one thing in common: the need for reliable communications. The IC-F51 series offers a compact waterproof package that is easy to use. This radio keeps you in contact in nearly any environment.

IP67 dust and waterproof protection
The gasket sealed waterproof housing provides superior dust and waterproof* protection, equivalent to IP67.

* 1m depth for 30 minutes.

Built-in multiple tone signalings
Use the built-in CTCSS, DTCS, 2-Tone and 5-Tone capability to set up your own talk groups or control a repeater.

Wide frequency range coverage
The IC-F51 covers 136-174MHz and the IC-F61 covers 400-470MHz in one version. Wide, middle and narrow channel spacing (25/12.5kHz or 20/12.5kHz) is programmable to each channel.

http://www.icomeurope.com/files/IC-F51_F61_ATEX.pdf

海事安全資訊-海事頻道
https://www.hkyacht.com.hk/safety.html
VHF Marine channel(VHF 海事頻道)，主要分美國及國際VHF海事頻道，香港是使用國際VHF海事頻道，一般由 Channel 2 ~ 20 , 60 ~ 77 及 Private Channel 96 & 99A

56(W)×97(H)×36.4(D) mm compact body with durable, dependable construction, has been tested to MIL standard specifications. The compact design fits comfortably in your palm, and is easy to carry around.

Li-Ion battery pack
The large capacity 1850mAh Lithium-Ion battery pack, BP-227AXD provides a practical 10 hours* of operating time.