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Intrisincally safe handheld


The JHS-431 is a 2 watt UHF intrisincally safe transceiver designed for onboard, ship-to-shore or ship-to-ship communications for ship operation, loading/unloading, rescue operations and mooring.

Natural safe structure

Engineered to meet ATEX standards, the JHS-431 is intrisincally safe and is approved for use when transporting, loading or unloading flammable, dangerous materials. The advanced, structurally sound casing and design ensure its safe use in conditions where safe communications is fundamental.

Dust-tight, waterproof design

The JHS-431 is a one piece, sealed casing design and has outstanding protection against dust and water that is equivalent to military grade IP67. The unit can withstand submersion in 1 meter depth of water for up to 30 minutes and has dust-tight construction that prevents the ingress of dust, ensuring usage in the most severe conditions.

Audio output

The JHS-431 delivers a loud 350mW audio output with the built-in Bridge-Tied Load (BTL) amplifier. Improved bass characteristics improves the audio quality.

Tone squelch function

Use the built-in Continuous Tone-Coded Squelch System (CTCSS) capability to set up your own talk groups and quiet stand-by when others are talking.

Easy operation

The ergonomic design of the JHS-431 offers single handed operation, due to the suitably arranged buttons and switches, providing safe, precise and convenient control of work handling operations. It also integrates a wide screen viewer for easy channel identification.

Clear indication

The 8 character LCD allows for a clear channel indication, names, set mode etc, and the icons instantly show the handheld status and condition.

Low power consumption

The Lithium-ion battery provides long lasting operation along with minimal power consumption. The sleeping mode/standby function ensures over 10 hours of practical operating time.

Natural safe structure

As of July 2003, organizations in the EU must protect employees from explosion risk in places where explosive atmospheres may arise, such as mixtures of air and flammable materials like gases, vapours, mists and dusts. The JHS-431 has an 'ATEX' certificate by EU directive 94/9EC commonly known as the ATEX directive (from the French: ATmospheres EXplosives). The ATEX directive contains classification into groups and categories which are defined by the marking on the battery.