Digital differential pressure gauge is developed from high accuracy MEMS sensing technology and digital processing circuit. It can measure positive pressure,negative pressure and differential pressure. It can completely replace mechanical dial pressure gauge. It can be used to test pressure and differential pressure of fan and air blower,filter resistance, wind velocity, boiler ventilating, medical,orifice plate,etc.

The differential pressure indicator has no moving parts,so it features good performance,longer time,etc,its accuracy can reach ±1%FS or 0.5%. Digital display LCD/LED screen make value easy to read.Ultra-small design also make it installed on wall or embedded way. Local keys support setting functions of zero point calibration, unit changing, refreshing display time setup,auto sleep time setup,etc.

The digital differential pressure meter can support battery power or external power. When the spot application has no external power or not easy to get external power, user can only use battery power and max battery life can reach 2 years. The diff.pressure gauge uses universal AA batteries which are convenient to get. So it is easy to make future maintenance.

Differential Pressure Measurement: Digital VS Mechanical Type

In the past,mechanical type differential pressure gauge was main items in market. As electronic technology development,digital differential pressure gauge has been released and well promoted. Its price is reduced sharply. Thus, it is time to replace mechanical type DP with digital type. Digital pressure gauge has higher accuracy, longer life, digital reading,etc.

Of course, except digital pressure gauge, we also supply mechanical type diff.pressure gauges with low price. OEM service is welcome. If have such requirement, please feel free to contact us.

Measured medium:Air and Non flammable / non corrosive gas which have no sensitive to dust,dew and oil pollution.

Technical Specification:

  • Fluid temperature range:0-60°C
  • Temperature compensation range: 0-50°C
  • Accuracy:±1.0%FS
  • Long-term stability: ±0.5%FS/year
  • Working pressure: Overload:10xFS; Damaging pressue:15xFS
  • Temp.shift:<0.05%FS/°C(zero point);<0.08%FS/°C(full scale);
  • Keypad:3 tactile keys
  • Display: 4 digits LCD with pressure unit display. If require LED, it will require external power supply.
  • Working temp.: LED:-20 to 85°C; LCD:-10 to 60°C
  • Protection class: IP65
  • Net Weight:280g
  • Enclosure material:PC
  • External power supply: 24VDC/AC or 110-250AC vailable.
  • Battery power: 4xAA,recommend LR6
  • While battery power:  Display refreshing time: can set 0.5/1/5/10s.(Default 1s). Auto sleep time: can set ON or 1/5/10min(Default:1min).
  • Battery using life: display refreshing time(1s)/Auto sleeping=ON  Set>=2years, display refreshing time>1s or set auto sleep time,longer using life.  Battery life is also decided by battery quality.

Dial Differential Pressure Gauge

Dial differential pressure gauge is for air and gas differential pressure measurement.
It has been widely used for medical, microelectronic, environmental project, building, HVAC, food, precision machining, biotechnology, aviation, etc.

Technical Specification:

  • Accuracy: +/-4% full scale at 21℃
  • Connection port: NPT 1/8
  • Temperature range:-7 to +60℃
  • Dimension:121x56mm
  • Range optional:0-30-60-100-125-250-300-500-750.....5KPa,

For checking filter effect of wide, middle and high air filter, please use 0-125Pa,0-250Pa,0-500Pa,0-1000Pa,etc.
Watch the differential pressure value to replace filter.