J.S. Enterprises manufactures Power Supply Measuring Instruments. J.S. Enterprises offers laboratory equipment and instruments, electronic weighing machine, humidifiers etc. Power Supply Measuring Instruments possesses dual 0 to 30 V and 0 to 2 A power supply. It has less than 1mV rms ripple and has the stability of 0.1% plus 20mV [under constant line, load and temp. Conditions for eight hours].