· Password or 125KHz EM card for verification · Sturdy waterproof and backlit keyboard · Password length from 4-6 digits can be set · Light and audio feedbacks · Lock control delay, unlock duration programmable from 0-99 seconds · 1-3 minutes programmable alarm delay · 13.56MHz Mifare card (optional) · Support cryogenic work (minimum -40°C) · Access control mode, switch mode · Electronic lock, exit button (optional) · Support guest ID card function · Switch tamper