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Truflo® THE bag nag Digital Pressure Alarm

Truflo® THE bag nag Digital Pressure Alarm


  • Display Changes from Green to Red (Alarm Status) Time to Change Bags-Clean Filter

  • Highly Accurate 0.25% of Full Scale

  • Ceramic Diaphragm 316 SS ½” NPT Process Port

  • Display Pressure Units PSI, Bar, Kg/Cm2, KPA, MPA, In Hg

  • Two (2) 3 Amp Relay Alarm Functions

  • 4-20mA Analog Output Function (Remote Display)

  • Digital RS-485 Interface Function (optional)

  • IP66 NEMA 4X

  • Plastic Gauge Isolator For Corrosive Services, Slurries, Heavy Sediment (optional)


Supply Voltage DC 14 to 30V
Measuring Accuracy 0.25% Full Scale
Display Range -19999~99999
Relay Contact Output DC 30V-3A
Analog Output 4-20mA
Display Bright Red/Green LED high (0.4")
Parameter Setting Push Button
Memory Mode Non-Volatile E2 PROM Memory
Diaphragm Materials Ceramic A1203-96%
Pressure Port Materials 316 SS
Display Materials Polymide 66+15%Glass Filled
Operating Temperature Range -4ºF to 176ºF (-20 to 80ºC)
Storage Temperature Range -22ºF to 176ºF (-35 to 80ºC)


Truflo THE bag nag


About Us

Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


Our Products

Dataloggers, sensors, pumps, recorders, hand held instruments, flow instrumentation, level controls, valves, instrumentation, containers, tanks, transmitters, data loggers, digital indicators, mixers and agitators, pressure intrumentation, analyzers and controllers for a variety of industrial applications such as water quality, pH/ORP and more.

Website Content

Water Analyzers and Controllers, Wireless Products, Corrosion Monitoring Equipment, Cooling Tower and Boiler Controllers, a wide variety of Pumps, Valves, Dataloggers and Recorders, HVAC, Instrumentation, Skids and Systems, Containers and Tanks from world leading manufacturers are products you will find on this site.

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