● Adoption of high-strength A-alloy precise die-casting shell, with strong impact resistant capability.

● The surface of the shell is sprayed with plastic and has strong corrosion resistance.

● The shell has high protection level, good sealing, waterproof and dust-proof, and can be used in harsh environment.

● Using ARM MCU as control unit, it has fast response speed, high precision and small error.

● Non-contact, non-fragile components, long service life.

● Double-row digital tube display, LED indicator display, convenient for on-site observation and maintenance.

● Integral design, two bolts fixed, easy to install and use.

● Intelligent design without manual setting of initial parameters.

● High Precision 4-20mA Analog Output.

● Light and heavy alarm double switch output, light alarm with power off alarm function.

● High Contact Capacity Relay Output.

● With RS-485 communication interface, it can access comprehensive protection instrument.

● Optional Intelligent Infrared Hand Manipulator can modify alarm point, alarm delay, start delay and other parameters by itself.