Tamper resistant outlets meet NEC to protect children from electrical shock. They have built-in shutters that block insertion of most small objects. Look for the marks \"TR\" or \"Tamper Resistant\" to assure it's an authentic protective outlet.
Mechanical shutter mechanism prevents access to contacts unless a 2-pronged plug is inserted， helping ensure that foreign objects will be locked out
TR symbol on receptacle face assures they meet the 2008 NEC section 406.11 code requirements
Ultrasonically welded for additional assembly security
Base and face made of high impact thermoplastic
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