32-grade digital control of volume, abrasion free, super long life, volume storage and memory, automatic value assignment at startup.
LED bar display meter for volume and output level.
High-speed-response latching output overload protection, output short circuit protection.
Undervoltage and overvoltage protection.
Overload display lamp, sending signals to the interlocking controller when an alarm is given.
AC220V or DC24V power supply, automatically switching to DC power supply when there is a failure or undervoltage of AC.
Our company is specialized in producing fire electrical product while integrating R&D, manufacturing, marketing and after sale service as a high-tech enterprise on international level. As a company dedicated to fire protection, Tiancheng has been one of the pioneers in this field. We have a brilliant R&D team and many advanced production lines. At present, our company has become one of the most advanced production basement in producing fire protection products. Our company has passed International Quality Certification System of ISO9001 and is also certified by the CCC.
