Dear buyer, Welcome to my shop, if you have any question please let me know, I will do my best to help you when received your mail(will reply within 48hours), thanks for your understand,if want many quantity or many items total please contact me,maybe will have a good price,Have a nice day! Product Description: Cabinet Locker and Elevator Control Panel One Extend board can be control within 20 floors,system max can be connect two extend boards,mean max can be control within 40 floors,this item only come with one extend board,it only control within 20 floors,if you want control more than 20 floors and within 40 floors please contact me for order more one extend board. built in TCP/IP with free software to manage users. Support RFID/Pincode/Face/Finger to access Access control is focussed on controlling who has access, e.g. to an office or facility. This is typically achieved by restricting access by certain types of groups or access levels. With access control visitors, employees, executives, freelancers or employees can easily and securely access. Model DT20 Max can be support 40Floors Elevator Access Control Unit Input Format of Reader Wiegand 26/34bit (All card reader with compatible protocol, such as Motorola, HID, EM, Mifare one etc) Q ' ty of users 20,000 Q ' ty of Event Buffers(offline) 100,000 Power Supply 12V DC 5A Communication to PC TCP/IP 10M/100M self adaptive Number of supported floors 20floors, if need to control more, add 1more DT20E Dimension(LDH) 164mm*106mm Net weight 0.30Kg Packing include: Elevator access controller DT20 x1 Extend Board DT20E x1(only control max 20 floors, if you want control more 20 floors please order more DT20E) English CD x1 Shipping: We Ship to Worldwide. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying. The item will be shipped out within 48 hours on the weekdays ( Monday to Friday ) or the next business days on the weekend after full payment must be received. Only ship to the Address. Please make sure your address in is Correct before you pay. we are not responsible for any wrong or undeliverable addresses. We will ship out the item by AirMail from China or Hong Kong Post Office. If want send by DHL UPS EMS or other Express shipping please contact me to change the shipping cost. We will send the item as " GIFT " It takes about 15-40 working days to arrive. Sometimes take a little longer , Due to Local dispatch or other reasons, It might goes more than 20 days . Payment We accept PayPal only. All major credit cards are accepted through our secure payment processor PayPal. Payment must be received within 10 days of auction closing. Refunds Returns If you do not satisfied with your purchase, or if it is damaged when receive, please let us know, we will do our best to help. If the problem cannot be solved, please return it to me in the condition it was received within 7 days. we will send you replacement or give you a refund. All returns should include all original items undamaged, in re-saleable condition, all original packaging including manuals, warranty forms. Buyers is responsible for the returning shipping cost. We care about our valued customers, and will always try to help you. So if you have any problems, please message us immediately. Please give us the opportunity to resolve any problem. We understand the concerns and frustrations you might have, and will try our best to resolve the issues.Please contact us BEFORE leaving any negative or neutral feedback or open any dispute on paypal.