... 1.RS-232, Ethernet, Wiegand and customized 2.Wireless module GPRS/GSM, WIFI, Buletooth optional 3.Reading distance ... by knob on reader or software, convenient for installation3. Wireless module GPRS/GSM, WIFI, Buletooth optional4. Power supply configurable ... -channel relays output,2-channel trigger inputFirmware UpgradeSupport serial portApplication Software PlatformProvide development kit of API(C++, ...