Scientific devices [bombay], an iso 9001:2000 certified company, is engaged in designing, manufacturing and supply of level switches and level controllers. The company provides capacitance level switch. Some of the salient features include like : no moving parts inside the device, is not affected by friction, suitable for powder or liquid application; various models suitable for different application; operating temperature 20 200ºc, max 800ºc; the sensitivity, which includes 10pf, 20pf and 40pf, are adjustable; with timing delay design, timing adjustable range 06 seconds; voltage - 10v/220v ac or 24v dc; output - npn transistor 5a/250v ac and 5a/240v ac spdt contact; standard connecting screw 1" npt, special specifications are acceptable; enclosure protection ip 65 or explosion-proof; and simple and proven design, operates in most liquid.