Sparr Electronics Ltd manufactures Serial Port Isolator. Sparr Electronics Ltd is an ISO 9001:2000 accredited company. The Company also offers Serial to LAN Converters, RFID reader/writer, Data Converters, GSM/GPRS/GPS products, Diallers, etc. The Serial Port Isolator, Model ISO232, is primarily intended to provide complete isolation between the computer or system and serial device, so that they are protected against any inadvertent damage. The Serial Port Isolator provides necessary immunity to computer or system against electrical noise. This Isolator provides indications for Transmit Data [TD], Receive Data [RD] and Power on both the sides.
