... Series Water And Oil Cooled Switching Mode power supply with PLC interface: With high quality and reasonable price KGSJ Series Water ... °C ~ 40 °C,Less than 90% humidity.Product usageSuitable for plating acid copper, alkaline copper, coke copper, nickel, tin ... system;Ampere-hour meter;RS485 or RS232 standard interface 4-20MA,0-5V control signal interface ,etc.(The signal interface can be customized )