KR500H is a series of outdoor IP67-rated tamper-resistant multi-technology proximity card readers capable of reading both HID and ZKAccess 125 kHz 26-bit proximity cards.

Due to its conveniently small mullion size, KR500H is the ideal card access solution for any metal doors with thin frames, parking gates, fences, turnstiles or any security device having a narrow mounting surface. KR502H and KR503H are designed for single-gang mounting. KR500H Series has a built-in Wiegand-Out port which can be connected to most any access control panel (including ZKAccess C3 and InBio door controllers).