With standard 70 mm backset ANSI mortise. Inside parts are with blue zinc treatment to reach the environmental protection requirement.

Microswitch inside the mortise is with over 1000,000 times life test.

Latch and deadbolt parts are with 304# die casting stainless steel material, durable and reliable.

Flat spring for the mortise is with imported piano wire with 500,000 times life test.

Spindle part is with special steel and heat treatment with over 1000,000 times test. High quality motor with 500,000 time life test, ensure working life.