Twenty-plus product lines across seven families — every system delivered with classification-society documentation, spare-part support and commissioning service. Can't find what you need? Ask our engineers.
The hearts of bridge and engine-room systems — precision components manufactured and lifetime-warrantied by JOINHAND.
New-generation, compact strapdown optical gyrocompass using fiber-optic gyros, accelerometers and strapdown computation to output heading and attitude with no mechanically moving parts.
The "heart" of the marine radar transmitter — precision-manufactured for stable output and long service life across mainstream radar families.
Marine-grade display terminals for bridge consoles and engine-room panels, daylight-readable and dimmable for night watches.
| Heading accuracy | ≤ 0.5° × secφ (RMS) · dynamic 0.16° × secφ (RMS) |
|---|---|
| Attitude accuracy | ±0.1° (roll/pitch) · 0.04° (RMS) |
| Settling time | ≤ 10 min |
| Power supply | DC 24 V ±10%, ≤ 40 W |
| Applicable latitude / longitude | 0–70° / 0–180° |
| Main-compass dimensions & weight | 152 × 181 × 130 mm · ≤ 4.5 kg |
| Interfaces | Multiple standard serial outputs, user-configurable assignment |
Data-recording, monitoring and analytics systems that turn a ship into an intelligent node of the global shipping network.
Complete voyage recording (heading, speed, position, rudder, audio and radar) in protective capsules for incident analysis.
Continuous sensing of temperature, pressure, level and status across machinery spaces, with grouped alarm annunciation.
Next-generation VHF data exchange terminal extending AIS with application-specific data channels.
Fuel, power and water consumption metering and analytics supporting IMO carbon-intensity compliance.
Weather-chart reception and network cruise recording packages for route weather awareness and audit trails.
Man-overboard AIS beacons for personal wear, triggering instant position alerts on the bridge.
The JHD-series family for command, telegraphy and broadcast on board — designed to CCS rules and installed on newbuilds and retrofits alike.
Controls the vessel's navigation and signal lights with filament-failure detection, standard serial interface to bridge systems, emergency changeover and freely combinable channel counts.
Batteryless telephony for vital command circuits — command, selective and direct modes, working on 24 V boost or hand-generator power alone.
Bridge-to-engine-room order and reply system for single or twin screws, with repeaters and permanent order logging.
Zone broadcasting, radio and playback for crew and passengers, with two independent amplifiers and forced full-volume emergency output.
Ship-wide emergency alarm with hot-standby amplification, fire-alarm interlocking and dual AC/DC supply.
Automatic ship telephone exchange for cabin, office and machinery-space extensions.
Master plus up to six extensions for command talkback, rich I/O, wall or flush mounting.
Immersion-rated handheld VHF for deck work and survival craft, pre-set to Channel 16 distress frequency.
| JHD12-BLT12S (W/F) | Selective sound-powered telephone · IP22 · wall / flush |
|---|---|
| JHD12-BLT (W/F) | Direct sound-powered telephone · IP22 · wall / flush |
| JHD12-BLT12S-AN (W/F) | Anti-noise selective telephone · IP44 · for machinery spaces |
| JHD12-BLT-AN (W/F) | Anti-noise direct telephone · IP44 · 110 dB environment |
| JHD-AVU / AVU-B / AVU-BP1 / BP2 | Flash-bell & audio-visual alarm units · 3–15 W · IP44–IP56 |
| JHD12-CB / CB6 / CB12 | Command and 6/12-way selective junction boxes · IP22 |
Watch, fire and compartment safety systems engineered to IMO instruments and classification rules.
Monitors officer-of-the-watch activity with motion detection, selectable 3–12 minute intervals and three escalating alert stages to backup officers.
8 or 16 zone fire detection with up to 32 addressable points per channel; smoke, heat and manual call points; 1,000 fire + 1,000 fault event logs; NMEA output to VDR.
Consolidated machinery alarm annunciation for engine control rooms and workshop positions.
Monitors up to 18 watertight doors with open / closed / fault indication, line supervision and door-open alarm extension contacts.
Alerts duty engineers in cabins and common spaces, with all-call or selective calling and two-way speech.
SOS calling from ship hospital and cold stores with sustained audible-visual alarm until acknowledged.
Signalling and measurement instruments that keep bridge crews informed in fair weather and fog.
Air whistles (WD series), electronic foghorns (DW-01) and motor sirens (HSD) for vessels from coaster to bulker, with auto fog-signal control.
AC rudder-angle transmission with a full family of transmitters and repeaters for bridge wings, console and steering gear room.
Ultrasonic-friendly anemometry with bridge display for manoeuvring and load-monitoring decisions.
Continuous roll and pitch measurement with controller, sensors and junction box; graphical and remote display options.
Lightning and surge protection, explosion-proof equipment and life-saving appliances for harsh marine environments.
70° stereoscopic protection engineered to military grade — feed-line direct-stroke protection with zero delay for high-frequency communication equipment, plus multi-stage coordinated defence.
Coordinated SPD stages for power and signal circuits across the lightning-protection zone concept.
Ex-rated cameras and recorders for tanker zones and hazardous cargo areas.
Satellite EPIRBs and radar SARTs for distress alerting and homing, float-free housed.
Protective clothing and breathing apparatus for chemical and fire emergencies on board.
Ship-hospital and rescue stretchers for casualty handling in confined ship spaces.
Send us your vessel particulars, class society and delivery port — we will return a configuration and quotation.