Access Control, RFID Reader, UHF Reader manufacturer / supplier in China, offering 9~28VDC Volts Voltage -10°C to 50°C Operating Temperature Range Conventional Manual Call Point with ABS Material Durable and Easy Installation, Metal 0-15 Second Automatic Protection Switching Mini Indoor Access Control 6A Power Supply for Card Reader Access Control (KPSM-6A), 0-15 Second Automatic Protection Switching Metal Mini Indoor Access Control 5A Power Supply for Card Reader Access Control (KPSM-5A) and so on.