Adopting STM32 series 32-bit MCU processor and multi series instrument common platform chip; The AD chip has a sampling rate of up to 125 thousand times per second, with 16 channels sampled at high speed and a display update speed of 1 second per channel; 0.5% F.S measurement accuracy; 16 channel thermocouple isolated input, 16 channel transistor controlled output, with PID operation and self-tuning function, powered by DC24V power supply, RS485 communication interface, standard Modbus communication protocol; Lightning surge meets the IEC61000-4-5 standard; Pulse group anti-interference meets the IEC61000-4-4 standard; The anti-static ability meets the IEC61000-4-2 standard; The safety level meets the IEC61010-1 standard.