Gems^® Series 67 four channel level controls are an ideal solution for liquid level problems in hazardous locations for the sewage, waste water, chemical and groundwater pump/solenoid valve control; automatic or manual alternation; high and/or low level alarms with silence/acknowledge capabilities. Series 67 controls can be used in hazardous applications as an intrinsically safe interface to non-powered contacts and sensors such as push button operators, limit, temperature, pressure and vacuum switches. Its low cost, integrated features and compact size also make it ideal for non-hazardous applications.