We at PVR Controls have two established brands – Sub Zero & Castle, both of which have grabbed the attention, and the loyalty of several industry leading giants. Sub-Zero Controllers for Automation & Castle Ammonia Valves are at the centre of several Refrigeration & Air-conditioning projects. Quality, Reliability, Service & Innovative products are the prime reasons for our success in this automation journey Sub-Zero range includes General Temperature Controllers & Indicators, Freezer Controllers, Cold Room Controllers, Packaged AC Controllers, Chiller Controllers, RH & Temp Controllers, Fruit Ripening Controllers, Telecom AC Controllers, Process Controllers, PID Controllers, PLC & HMI Automation, Data Loggers and Monitoring systems, Ammonia Leak Detectors, Line Voltage Monitors, Digital Panel Meters & Power Analysers, Screw Compressor controllers, Electrical Cold Room Panels, Flame Proof Controllers & Panels, Temperature Humidity & Ammonia Sensors.