differential air pressure sensor 4 20ma transducer differential pressure differential pressure sensor with lcd display

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  • 2 - 48 Pieces
  • 49 - 98 Pieces
  • >=99 Pieces
Lead Time:
Quantity(Pieces) 1 - 9 10 - 49 50 - 99 >99
Est. Time(days) 7 10 12 Negotiable
Customized logo (Min. Order: 100 Pieces)
Customized packaging (Min. Order: 100 Pieces)


Graphic customization (Min. Order: 100 Pieces) Less
$59.00 /Piece | 1 Piece (Min. Order) | Buy Samples
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Quick Details
Place of Origin:
Anhui, China
Brand Name:
huaibei Huadian
Model Number:
Measuring range:
output signal:
4-20mA 1-5V.0-10v RS485
Power supply:
Shell protection:
Overload pressure:
Operating temperature:
Long-term stability:
Full load power:
Measuring medium:
oil water gas
Product Certification certification
CE Certified.
Valid from 2019-03-28 until 2024-03-27
FCC Certified.
RoHS Certified.
Supply Ability
Supply Ability:
999 Piece/Pieces per Month 4 20ma transducer differential pressure
Packaging & Delivery
Packaging Details
Each unit has original individual box,all boxes are packed in standard packages.
Lead Time :
Quantity(Pieces) 1 - 9 10 - 49 50 - 99 >99
Est. Time(days) 7 10 12 To be negotiated

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Product Description


Brief  Description

HDP 701 micro differential pressure air pressure transmitter is composed of OEM silicon piezoresistive differential pressure core.The shell is made of aluminium alloy. The two pressure interfaces are M8 threaded and cock structures,which can be directly installed in the measuring pipeline or connected through the booster pipe,and can accurately measure the pressure and differential pressure of the gas.It is widely used in the field of pressure process control in power and coal industry,such as boiler air supply and underground ventilation.

The long tube is the high pressure input port and the short tube is the low pressure input port. 

Measuring Pressure:Only Long tube 

Measuring differential pressure:high pressure to long tube,low pressure to short tube



Connection Type




Main Technical Parameters

Model HDP701
Power supply 24VDC
Output signal  4~20mA,1~5V,0~10V,RS485
 Measuring range -0.1...0...60Mpa
 Compensation temperature -10~70℃
 Medium temperature -40~80℃
 Environment temperature -40~85℃
 Measuring media Gaseous
 Pressure type Gauge pressure,Absolute pressure
 Accuracy 0.1%F.S,0.25%F.S,0.5%F.S(standard)
 Zero temp drift ±0.03%F.S/℃
 Sensitivity temperature drift ±0.03%F.S/℃
 Overload 200%F.S
 Long-term stability ≤0.2%F.S/year
 Inherent frequency 5kHz~650kHz
 Protection grade IP65


Selection Table

Wiring diagram



Company Information






Packaging & Shipping


Q: Are you trading company or manufacturer ?
A: We are a manufacturer, committed to producing high accuracy, long-term stability, cost-efficient pressure/ level/ temperature measuring instruments.

Q: What's your quality control system?
A: All of our products are completed with temperature compensation and 48 hours aging test before shipment. And all of our products will be fully pre-inspection by QC departments before shipping to you . We have the certification of ISO,CE we could send the certification test of our company to you.

Q: What is the warranty of your products?
A: 2 years for level transmitter and pressure transmitter series others are 5 years from shipment date, for non-man-made damages.

Q: What is your shipping method?
A: Small orders are delivered with DHL, FedEx, TNT, UPS , EMS. Large orders are recommended to ship by sea.

Q: Do you provide samples ? 
A: Yes,we have materials in stock to help you to get the samples as soon as we can.

Q: How long will you give me the reply? 
A: We can support you 24Hours online service via email, skype, what’sapp, facebook etc within 1 hour.


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