Specifications include, but are not limited to: *DETECTION ZONES - 33 ZONES (LEFT, RIGHT AND CENTER; VISUAL AND REMOTE ALARMS *MULTI-UNIT SYNCHRONIZATION - SYNCHRONIZATION WITH WIRED AC POWER LINES OR WITH MANUAL FREQUENCY SELECTION FOR WIRELESS OPERATION *VISUAL DISPLAYS - LED ZONE INDICATOR LIGHTS ON BOTH PANELS. PACE LIGHTS ON ENTRY SIDE ONLY, WITH INTUITIVE IMAGES *ACCESS CONTROL - EIGHT-BUTTON KEYPAD WITH NUMERICAL CODES. KEYPAD LOCK TO CONTROL ACCESS AND TO ENABLE/DISABLE THE KEYPAD *PASSAGEWAY INTERIOR SIZE - 30"2, 80" H, 23"D *OVERALL EXTERIOR SIZE - 35"W, 87"H, 23"D *POWER: FULLY AUTOMATIC 100 TO 240 VAC, 50 OR 60 HERTZ, 45 WATTS *REGULATORY INFORMATION - MEETS STANDARDS SUCH AS TSA, ECAC, STAC, AENA, CJIAC, DFT, USMS, NIJ-0601.02, NILECJ. ELECTRICAL SAFETY AND COMPATIBILITY REQUIREMENTS FOR CE, FCC, CSA, IEC, ICNIRP, IEEE.