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SJ Gauge digital differential pressure gauge with LCD screen
Digital Pressure Gauge, Multi-purpose Low/Differential Pressure Transmitter
  1. SJ Gauge digital differential pressure gauge with LCD screen
  2. Digital Pressure Gauge, Multi-purpose Low/Differential Pressure Transmitter

Digital Pressure Gauge, Multi-purpose Low/Differential Pressure Transmitter

Model: TWM11
  • On-site customizable units and range for specific scales
  • LCD backlight display, beneficial for long-term monitoring
  • Limited to non-flammable and non-corrosive gases
  • Usually used in filter, fan and duct pressure monitoring for building automation systems in the HVAC industry
  • Responsive after-sales service / Customizable
  • High quality / One-year warranty
  • Product images are for reference only. Final specifications are based on the confirmed order.
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Description

The TWM11 is a versatile low-pressure and differential pressure transmitter supporting multiple output types including 4–20mA, 0–5V, 0–10V, and RS485. Its measurement range can be configured on-site (such as ±100 Pa, ±1000 Pa, ±10000 Pa), along with various selectable pressure units. Featuring an LCD with backlight, manual/auto zeroing, and adjustable response times (0.5/1/2/4 seconds), it operates on a low-power 12–30VDC supply. Designed for non-corrosive gases, the TWM11 is widely used in HVAC and building automation for filter monitoring, duct pressure measurement, and airflow-related applications. Its IP54 protection and multi-directional air inlet design allow flexible installation in diverse environments.

Product Images

Pressure gauge with backplate, air tube, transparent soft tube, and mounting accessories.
Pressure gauge with backplate, air tube, transparent soft tube, and mounting accessories.
TWM11 assembled with DIT-P diaphragm seal featuring PP upper and PTFE lower materials for corrosive media applications.
TWM11 assembled with DIT-P diaphragm seal featuring PP upper and PTFE lower materials for corrosive media applications.
PTFE wetted diaphragm design improves chemical resistance for pressure monitoring in harsh environments.
PTFE wetted diaphragm design improves chemical resistance for pressure monitoring in harsh environments.

Downloads

English

SJ-Gauge-TWM11-differential-pressure-transmitter-datasheet-en
SJ-Gauge-TWM11-differential-pressure-transmitter-manual-en

Traditional Chinese

SJ-Gauge-TWM11-differential-pressure-transmitter-datasheet-ch
SJ-Gauge-TWM11-differential-pressure-transmitter-manual-ch

Specifications

Pressure mediumGas
Scale ranges
  • Code 6: -100 ... 100 Pa
  • Code 0: -1000 ... 1000 Pa
  • Code 2: -10000 ... 10000 Pa
Pressure unitsPa, mmH2O, mbar, inWC, mmHg, daPa, kPa, hPa
Accuracy±1.0% F.S.
Resolution
  • Code 0, 2: 1 Pa, 0.1 mmH2O, 0.01 mbar, 0.004 inWG, 0.007 mmHg, 0.1 daPa, 0.001 kPa, 0.001 hPa
  • Code 6: 0.1 Pa, 0.01 mmH2O, 0.01 mbar, 0.01 daPa, 0.001 hPa
Pressure limitation
  • Code 0: 15 kPa
  • Code 2: 150 kPa
  • Code 6: 4.5 kPa
Medium temperature-10℃ ... 60℃
Ambient temperature-10℃ ... 70℃
Voltage supply12-30VDC
Output signal
  • 2-wire: 4-20mA
  • 3-wire: 0-5VDC, 0-10VDC
  • 4-wire: RS485
  • 6-wire: 4-20mA & 0-5VDC, 4-20mA & 0-10VDC
Response time0.5 s, 1 s, 2 s, 4 s
Power consumption≦ 1.5W
Zero adjustmentBy manual or automatic operation
IP ratingIP54

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