U.S. SOR switch 
 SOR, Inc. (Chinese: Sol) was established in 1946, is the world's only production all kinds of mechanical and electronic pressure and differential pressure, temperature, flow, level switches and transmitters in one of the specialized international companies . SOR Pressure Switches products but also for its excellent quality by the majority of users, with its output ranked first in the world. 
 SOR pressure switches products are mainly static O-ring sealed piston diaphragm structure, with earthquakes, over-voltage capability, wide measuring range and the hysteresis is small, and long service life. Its production of high static pressure differential switch is unique in the world that its nuclear extreme pressure to obtain product IEEE is the world's only certified products. 
 All mechanical level switch SOR meet ANSIB31.1 and B31.3 standards, including mechanical float and float two categories, the classification of its unique ball condensation cooling measures to ensure a good part of the level switch from the switch unit the impact of high-temperature steam can be reliably used in high temperature conditions. 

 In addition to mechanical products, SOR types of electronic products is also very rich, including differential thermal flow switches, contact ultrasonic switch, RF 
 Admittance switches and transmitters, switches and transmitters, and display the trinity of SGT and non-contact ultrasonic transmitter. 

 SOR production of non-contact ultrasonic transmitter with a high energy, low frequency, automatic gain control so that it can be used in three main features, such as carbon black, dry ash, beer, high plaster dust, high foam and mist in the complex environment of high in helping solve the many users of ultrasonic products for many years and even with other products can not solve the radar problem. 
 SOR company with its diversity of products, high quality and good after-sales service, won the strong support of customers, it is widely used in electric power, oil and gas, chemicals, water treatment, paper making, metallurgy and other industries, from 1997 to date in China, process industries, especially power industry, SOR has been ranked the market share of products first, China has formed a strong sales force and improve after-sales service network. 

 SOR switch summary: 
 Mechanical pressure switch 
 Mechanical Pressure Switch 
 Mechanical Level Switch 
 Mechanical Temperature Switches 
 Mechanical flow switch 
 Contact ultrasonic level switch (ULS) 
 Non-Contact Ultrasonic Level Transmitter (ULT) 
 RF Admittance Level Switch side transmitter (RF) 
 Digital integrated pressure gauge (SGT) 
 Check Valves 
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