Relative pressure sensor / silicon / 4-20 mA / RS485
PS858-TSR-S Shanghai LEEG Instruments Co.,Ltd.


  • Pressure type:


  • Technology:


  • Output signal:

    4-20 mA, RS485

  • Mounting:

    flush, threaded

  • Other characteristics:

    stainless steel, compact, sanitary, silicone oil-filled, for medical applications, for the food industry, with digital display

  • Process temperature:

    Min.: -40 °C (-40 °F)

    Max.: 300 °C (572 °F)

  • Pressure range:

    Min.: 0.1 bar (1.45 psi)

    Max.: 30 bar (435.11 psi)


PS858 electronic pressure switch fully upholds the design concept that to meet the worst application occasions, adopts monosilicon sensor technology and integrated housing craft, with excellent performance.
5 dot-matrix OLED display mode shows rich menu contents and achieves the best visual effects. 3 button parameters setting to realize a good man-machine operation interface and rich functional adjustment. Independent air cavity structure effectively insulates gas-guiding side and electronic cavity so as to avoid effects of humidity. To maximum the usage of different industrial applications, high overload, anti-condensation, high precision and other demanding functions are optional accordingly.

Pressure types: Gauge pressure
Measuring range: 10kPa-3MPa
Output signal: 4-20mA, RS485 Modbus-RTU / PNP or NPN
Reference accuracy: ±0.2%URL, ±0.5%URL
Stability: ±0.2% URL/ 5 years
Media temperature: -40-120℃
Process connection: Tri-Clamp 1-1/2", Tri-Clamp 2", DIN32676 DN32...
Electrical connection: Aviation plug, M12*1 (5 pins)


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