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Black dome mirror with magnet mount 10 by 4 inches

Ironguard

Ironguard 70-1140 Dome Mirror 4 in W 10 in L Black

SKU CH-CP21-KA4E3

A 4 by 10 inch black plastic dome mirror with a mounting magnet for dock visibility

  • Wide view from compact 4 in by 10 in dome
  • Black plastic housing resists marine corrosion
  • Magnetic mount installs without drilling holes
  • Fits Grainger part numbers 441T79 441T80 441T82 and more
  • Compatible with manufacturer models 70-1080 through 70-1116

Ironguard 70-1140 Dome Mirror

The Ironguard 70-1140 is a convex dome mirror designed for marine dock environments to improve visibility around corners and obstructions. Its wide-angle reflection helps boat operators and pedestrians spot oncoming traffic or hazards in tight manoeuvring areas. The black plastic housing resists salt-spray corrosion and UV exposure common in coastal settings. It suits dock masters, marina staff and private slip owners who need a low-maintenance safety aid.

Magnetic Mounting for Flexible Placement

A built-in mounting magnet secures the mirror to any ferrous surface such as steel pilings, bollards or equipment cabinets without drilling or permanent fasteners. The 4 in width by 10 in length profile fits narrow posts and tight walkways where larger mirrors would overhang. Installation takes seconds and the mirror can be relocated as seasonal layouts change. The magnet holds firm in vibration from passing vessels yet releases cleanly for repositioning.

Passive Optics With No Power Draw

The mirror operates purely by optical reflection so it adds zero electrical load to dock circuits and requires no wiring, batteries or solar panels. The plastic dome sheds rain and resists fogging in humid morning conditions, maintaining a clear view without heaters or coatings. Silent operation avoids adding noise to quiet marina zones. The unit simply mounts and works, leaving maintenance budgets untouched.

Highlights

  • Wide view from compact 4 in by 10 in dome
  • Black plastic housing resists marine corrosion
  • Magnetic mount installs without drilling holes
  • Fits Grainger part numbers 441T79 441T80 441T82 and more
  • Compatible with manufacturer models 70-1080 through 70-1116

Specifications

BrandIRONGUARD

Questions about this item

How does the 4 in wide by 10 in long dome mirror mount to a dock post?

It includes a mounting magnet that attaches directly to ferrous metal surfaces on the dock.

What physical space is needed to fit the 9 in high dome mirror?

The mirror measures 10 in long, 4 in wide and 9 in high, so allow at least that clearance.

What is the correct way to install the included magnet and what step is often missed?

Place the magnet on a clean, flat metal area and press firmly; the step often missed is ensuring the surface is free of paint or rust for full contact.

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