relative pressure sensor / potentiometric / 4-20 mA / ratiometric
SMP131-TLD(GP) Shanghai LEEG Instruments Co.,Ltd.


  • Pressure type:


  • Technology:


  • Output signal:

    4-20 mA, ratiometric, DC output, RS485, HART, Modbus

  • Mounting:


  • Other characteristics:

    compact, OEM, CE, for liquids and gases, for harsh environments, IP65, intrinsically safe, with LCD display

  • Process temperature:

    Min.: -30 °C (-22 °F)

    Max.: 150 °C (302 °F)

  • Pressure range:

    Min.: 5000 Pa (0.73 psi)

    Max.: 100000000 Pa (14503.77 psi)


SMP131 compact pressure transmitter has unique technological advantage which is different from other ordinary products with the same price and its’ capabilities are equivalent to the most of the high-end products, which is the first selection of the most cost-effective products.

Measuring range: 5kPa-100MPa gauge
Output signal: 4-20mA,4-20mA+HART,0.5-4.5VDC, Modbus-RTU/RS485, others
Reference accuracy: ±0.2% URL, ±0.1% URL
Process connection: M20*1.5(M),G1/2(M),G1/4(M),1/2-14NPT(M)
Measuring medium: Liquid, gas, or steam
Media temperature: -30-150℃
Tube length: 53mm, 37mm, 65mm, 85mm Material: SUS304, SUS316
Electrical connetion: DIN43650,IP65; M12*1(4pin),IP67

Application: machine tools , mechanical engineering, hydraulics plant