Differential pressure transmitter / silicon / 4-20 mA / HART
SMP858-NST Shanghai LEEG Instruments Co.,Ltd.


  • Pressure type:


  • Technology:


  • Output signal:

    4-20 mA, HART

  • Mounting:

    flush, flange

  • Other characteristics:

    with aluminum housing, with LCD display, smart, with diaphragm seal, with long-term stability, remote, high-overpressure, for liquids and gases, IP67, explosion-proof, flameproof, intrinsically safe

  • Process temperature:

    Min.: -40 °C (-40 °F)

    Max.: 180 °C (356 °F)

  • Pressure range:

    Min.: 0.04 bar (0.58 psi)

    Max.: 10 bar (145.04 psi)


SMP858-DST Monosilicon pressure transmitter is a high performance pressure transmitter with international leading technology meticulously designed by LEEG instrument, using the world's most advanced sensor technology and patent encapsulation technology. The sensor locates on the top of the metal body and stay away from the medium interface to realizes mechanical isolation and thermal isolation. Glass sintering sensor wire realizes high strength electrical insulation of metal base and improves the capability of flexibility of electronic circuit and transient voltage resistance protection.

Measuring range: 4kPa-1MPa
Output signal: 4-20mA, 4~20mA/HART, customer
Reference accuracy: ±0.2% URL, optional ±0.5% URL
Media temperature: With silicon oil -40-120℃, With Neobee oil -10-180℃
Proction class: IP67
Diaphragm material: SS316L, Hastelloy C
Stability: ±0.2% URL/5years
Process connection: DN50PN10, DN80PN10, DN100PN10, Tri-Clamp 1-1/2", Tri-Clamp 2"
Approvals: CE, EX-proof certificate

Industry application
Process control system
Petroleum industry
Chemical industry


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