SIS system, as a safety guarantee system for hazardous areas, is widely used in industries such as petrochemicals.
And it has a strict SIL level definition.


Our company is a strategic partner of Zhejiang University's Optimal Stability,
Proxy brands have
Siemens PCS7-400H
Zhejiang University Optimal Stability UW500S
HiaGuard
Ottoman TSxPlus
Honeywell Safety Manager
Emerson DeltaV SIS、
Triconex Tricon、
HIMA H51Q、
ABB 800xA、
Yokogawa ProSafe RS