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

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
The image is for reference; the actual product willbe based on your custom specifications.

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.

Specifications

Pressure medium	Gas
Scale ranges	Code 6: -100 ... 100 Pa Code 0: -1000 ... 1000 Pa Code 2: -10000 ... 10000 Pa
Pressure units	Pa, 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 supply	12-30VDC
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 time	0.5 s, 1 s, 2 s, 4 s
Power consumption	≦ 1.5W
Zero adjustment	By manual or automatic operation
IP rating	IP54