Approved Licence Categories are as follows :-

SM1 MAINTENANCE SERVICES
03    Instrument Maintenance
3.2   Electronic / Digital Instruments Systems

PI1  INSTRUMENTS
01    Automatic / Emergency (ASD / ESD)
       Shutdown System
1.1   Electronic Programmable Logic Control
04    Controllers
4.1   Electronic Type
4.2   Pneumatic Type
4.3   Programmable Controllers
07    Flow Instruments
7.10 Flow / Temperature / Pressure Recorder
7.12 Other Flow Instruments
08    Level Instruments
8.4   Differential Pressure Type
11    Pressure Instruments
11.1 Pressure / DP Transmitter - Electronic
11.2 Pressure / DP Transmitter - Pneumatic
11.9 Pressure Transducers
12    Temperature Instruments
12.1 Temperature Transmitters
12.3 Thermowells
12.5 Temperature Sensor (Thermocouple / RTD)
12.6 Analog Multiplexers System
12.7 Temperature Controllers
13    Process Control & Monitoring System
13.1 Distributed Control System (DCS)
13.2 SCADA System / Telemetry
14    Valves
14.4 Valve Positioners

PS1  SAFETY AND PROTECTION SYSTEM
01    Fire and Gas System