Round Magnetic Safety Key (28mm Body / ~14–15mm Magnet) – Treadmill Replacement

Fits Some Trimline, Hebb, Enchanfit & Similar Models – Measure Before Ordering

This round magnetic safety key is a compact replacement designed for treadmills using a 28mm outer diameter with a smaller ~14–15mm magnetic contact. It’s commonly used on Trimline, Hebb, Enchanfit, and other residential treadmills that require a smaller, precise-fit key.

🔩 Key Features

• Compact 28mm Round Design
  Smaller housing fits narrow or compact treadmill safety switch areas.
• ~14–15mm Magnetic Core
  Designed for precise engagement with smaller magnetic switch plates.
• Magnetic Emergency Stop Function
  Removing the key instantly shuts off the treadmill for safety.
• Clip-On Safety Lanyard
  Includes cord and clothing clip for automatic shutoff during use.

📐 Specifications

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

🏃 Compatibility

Commonly fits some models from:

• Trimline
• Hebb
• Enchanfit
• Other compact treadmills using 28mm round magnetic keys

Treadmill safety keys are typically size-based rather than brand-specific, so matching diameter and magnet size is critical for proper operation .

⚙️ How It Works

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

✅ Compatibility Notes

• Best for flat or shallow magnetic switch areas
  
• Must match 28mm outer diameter