Round Magnetic Safety Key (28mm Body / 14mm Magnet) – Treadmill Replacement

This round magnetic safety key is a compact replacement designed for treadmills using a 28mm outer diameter with a smaller 14mm magnet contact. It’s ideal for machines with smaller or more precise safety switch plates, where larger keys may not seat properly.

🔩 Key Features

• 14mm Magnetic Core
  Smaller magnet designed for precise contact with compact treadmill safety switches.
• 28mm Round Housing
  Compact outer diameter ensures proper alignment on smaller console areas.
• Magnetic Emergency Stop Function
  Instantly shuts off the treadmill when the key is removed—critical for safety.
• Clip-On Safety Lanyard
  Includes cord and clothing clip for automatic shutoff during use.

📐 Specifications

• Overall Diameter: 28mm (1.10")
• Magnet Diameter: 14mm (0.55")
• Material: ABS plastic housing with embedded magnet
• Cord Length: ~1 meter (39")
• Attachment: Safety clip + lanyard

🏃 Applications

• Home treadmills with smaller magnetic switch plates
• Replacement for compact console designs
• Universal use where 28mm / 14mm sizing matches

This size is commonly used as a universal replacement when dimensions match, rather than strictly by brand.

⚙️ How It Works

1. Place Key on Console
   Magnet completes the circuit so the treadmill can run.
2. Attach Clip to Clothing
   Secures to your shirt or waistband.
3. Emergency Stop Activation
   If pulled away, the treadmill immediately shuts off.