EL-31/1, ELECTRONIC ZONE, J-BLOCK, M.I.D.C., BHOSARI,,http://www.protocontrol.com,411026,PROXIMITY SWITCHES PROXIMITY SWITCHES, Sensor & Counting Switches, Temp. Measurement Devices, Transmitters, Temperature Scanners, Level Measurement Sensors Safety Switches, Flame Proof Instruments, Timers, Counter & Indicators Switches