The new Enforcer III magnetic sweeper models have three advantages over earlier models .
1. Strength: thicker stack of magnets to each unit to increase lifting power..... and a larger base area for holding material
2. Fewer moving components: The only moving part is the hinged release plate. Less chance of damaging internal magnets and less issues than the lever system
3. COST: The cost per unit is over 20% less than the old type Enforcer and a longer 8 foot model for cleaning larger areas.