Pulufu Electric (Shanghai) Co., Ltd. is a partial procurement enterprise for mechanical vibration sensors and instruments (formerly known as Shanghai Rotary Automation Technology Co., Ltd.). Rotary Machinery Company is a high-tech company that develops and manufactures mechanical shaft displacement, bearing vibration, pressure, speed sensors, and control instruments. The company's products are widely used in mechanical vibration monitoring systems.

The products include integrated vibration transmitters, explosion-proof integrated vibration transmitters, coal feeder encoders, and casing vibration transmitters, SZMB-1 magneto electric speed sensor, CS-2 speed sensor, XS12JK-3P/Y speed sensor, HY-3S speedometer, HY-3SF intelligent tachometer, MTSZ-30 microcomputer speedometer, SZC-07 intelligent tachometer, tachometer SQSC-485, intelligent speed digital display instrument SZC-04, intelligent speed monitoring instrument QBJ-3C2, intelligent tachometer DF9011, intelligent tachometer SZC-03KY, intelligent tachometer SZC-KYPN, SZC intelligent tachometer, fully intelligent imported tachometer MCS-II, SZC-04/SZC-04B series intelligent tachometer, DZC-02A tachometer, DF6202 reluctance speed sensor DYA-S intelligent tachometer monitoring instrument protection device XSM/C, CRY-03 intelligent tachometer, CSY-II microcomputer speedometer, tachometer digital display device XJP-48E, magnetic speed sensor SZMZ-02.