Digital presure gauge The default thread size is M20*1.5 ! If other threads are needed, we provide a thread adapter, must tell us in advance, such as M20*1.5 to G1/4, M20*1.5 to NPT1/4, etc. Descriptions XDB411series pressure controller is a special product created to replace the traditional mechanical control meter. It adopts modular design, simple production and assembly, and intuitive, clear and accurate large font digital display. XDB411integrates pressure measurement, display and control, which can realize the unattended operation of equipment in the real sense; It can be widely used in all kinds of water treatment systems, electromechanical equipment automation, engineering machinery, medical equipment and other industries, such as fully automatic control operation. Features - Diret adjustment of upper and lower limit keys: no other operation is required, and the upper and lower limit values are directly adjusted. - Zero calibration: press and hold the zero calibration button to calibrate the zero directly - Terminal wiring: the terminal wiring is simple and reliable. - Intuitive and clear display: it is simple to directly the pressure reading with large digital display. 1001 Pressure switch, only the output of relay all the way, Stop at high level, start work at the low position. 1003 Pressure switch, only the output of relay all the way, Stop at low level, start work at the high position. 1005 Electric connection point control, two relays two relays Both the upper limit and the lower limit need to control the connection to work.