LJ Star is a manufacturer of equipment for the processing industry. LJ Star specializes in process observation equipment including sight glasses, lights, sanitary fittings, and level gage instrumentation. Products include:
- Sight Glass Lights (Luminaires) – LumiStar (trademark sign) Light Series
- Visual Flow Indicators – Sterile Visual Flow Indicators
- METAGLAS (registered mark) Sight Glass Windows – METACLAMP Sanitary Clamp Sight Glass
- Bubble Traps
- Sanitary Clamps