AW-P-21 series Compact & low cost digital pressure transmitters are a signal conditioned, media-isolated high            
precision device that can be used for wide variety of applications. A compact design and 3 digit LED local            
display make it easy to control process and monitor the process value at site.            
They are available as absolute and relative pressure types with either 2-wire current or 3-wire voltage output.            
The pressure to be measured acts through thin corrosion resistant stainless steel 316L diaphragm on a            
piezoresistive silicon measuring element. The transmitting meduim of pressure is oil. The measuring element            
contains diffused piezoresistive resistors which are connected into a Wheatstone bridge. The output signal of            
the bridge is temperature compensated and converted into a standardized current or voltage output signal.