ESSEX ELECTRONICS....12 BUTTON KEYPAD.....KTP-163-SN...STAINLESS STEEL FINISH.....8 BIT WORD.....5 OR 12 VOLT.....12 PAD...3 X 4.......SAVE MONEY MAKE YOU OFFER!!!!!!!!!!!..MAKE YOUR OFFER AND SAVE MONEYI combine shipping in most of my products..just send a email with the items you want and i give discount on shipping..I'M APPRECIATE EVERY CUSTOMER WHO BUY IN MY product, AND I GIVE THANKS FOR ALL MY CUSTOMERS. i'm a honest seller, and i stated in my product, all the information i have, the shipping time, and the most important if you have a problem with the item contact with me, the negative feedback will last in my profile about one year,please don't abuse of the feedback, if you have a problem send a email and explain what is the problem, and i will fix the problem,. please read everything, and don't buy if you feel my product is not right for you FEATURESESSEX ELECTRONICS12 BUTTON KEYPADKTP-163-SNSTAINLESS STEEL BEZEL8 BIT WORD5 OR 12 VOLT12 PAD 3 X 4STAINLESS STEEL BEZELTHE KTP SERIES 12 PAD 3 X 4 IS A VIRTUALLY INDESTRUCTIBLE, STAINLESS STEEL, PIEZOELECTRICKEYPADREADERTHE KTP SERIES IS DESIGNED TO INTERFACE WITH MOST OEM ACCESS CONTROL PANELS OR INDUSTRIAL PROCESS CONTROL EQUIPMENTDURABLE ENOUGH FOR EBEN THE MOST EXTREME OUTDOOR ENVIRONMENT YET ATTRACTIVELY DESIGNED TO SUIT ALL INDOOR APPLICATIONSTHE KTP SERIES HAS BEEN SPECIFICALLY DESIGNED TO PROVIDE OUTPUT 8 BIT WORDTHESE VIRTIALLY INDESTRUCTIBLE READERS UTILIZE OUR PROPRIETARY PIEZOELECTRIC TECHNOLOGY IN A COMPLETELY WEATHERPROOF, ENCAPSULATED PACKAGE IDEAL FOR BOTH INDOOR AND OUTDOOR APPLICATIONSCUTTING EDGE SWITCH TECHNOLOGY- ESSEX PROPRIETARY PIEZOELECTRIC BILLION CYCLE SWITCH TECHNOLOGYLASER MARKED KEYPAD GRAPHICS- LASER MARKED GRAPHICS WITHSTANDS WEAR FROM HIGH USE AND HARSH ENVIRONMENTSMOUNTING METHOD- MOUNTS DIRECTLY TO A SINGLE GANG SWITCHBOX OR SURFACE MOUNTFIELD SELECTABLE INPUT VOLTAGE- SELECT EITHER 5 0R 12 VOLTS IN THE FIELDPOWER REQUIREMENTS- 15 0R 12 VDCKEYPAD OPERATING ENVIRONMENT- -40*F + 160*F (-40*C TO + 708C)....100% RELATIVE HUMIDITYSTANDBY CURRENT DRAW-