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Quick Details

  • Place of Origin: Fujian, China (Mainland)
  • Brand Name: HEDAO
  • Model Number: HD520
  • Pressure Range: -35kPa ~ +35kPa
  • Accuracy: -0.3%FSO ~ +0.3%FSO (25C)
  • Repeatability: -0.2% ~ +0.2% (Max+/0.5%FSO)
  • Linearity/Hysteresis: -0.29%FSO ~ +0.29%FSO
  • Max Pressure: 150 kPa
  • Response time: A typical 0.5 seconds
  • Working temperature: 0-50C
  • Storage temperature:: -1060C
  • Power: 4 x AAA battery (indluded)

Packaging & Delivery

Packaging Details Cartons
Delivery Time Within 7 days after payment
Product Description


Digital low differential high  Pressure Manometer  HD520


1) Digital Pressure Manometer

3) Low battery prompt functions 

4) USB interface 

5) 11 kinds of specific pressure

6) Range in temperature Revise 



Apply to testing fan and blower pressure, filter resistance, wind speed, furnace pressureorifice's differential pressurebubble water level, hydraulic system pressure, etc. Also apply to controlling the gas ratio in the combustion process and automatic valve, monitoring blood pressure and respiratory pressure. 

                                         LCD Display Pressure Manometer
Measuring range-35kPa ~ +35kPa 
Accuracy -0.3%FSO ~ +0.3%FSO (25C) 
Repeatability-0.2% ~ +0.2% (Max+/0.5%FSO) 
 Linear/lag-0.29%FSO ~ +0.29%FSO 
 Max Pressure150 kPa
Response timeA typical 0.5 seconds 
Beyond the positive pressure rangeErr.1
Beyond the negative pressure rangeErr.2 
Working temperature0 - 50C 
Storage temperature-10 - 60C 
Power4 x AAA battery (included) 


Packaging & Shipping

 Packaging Detail:  

 Plywood case suitable for long sea transportation

 Standard export packing or neutral                                                  

 Packing if needed,standard export packing,carton box, wooden case or upon request            Packing carefully

Delivery time:

About 10 working days after receiving payment

Payment Terms:                                                                     Payment: T/T, Western Union, PayPal 
Warranty : 1 year


Our Services
1. 100% quality guarantee
2. Quick delivery time
3. OEM service
4. Promptly reply you within 24 hours
5. We treat clients as friend .Giving best service and sincere greetings


Company Information

visual display




Q: How do you guarantee the quality? 

A: One year's guarantee from date on B/L. Normally. If it's quality problem, we promise to return goods or funds.


Q: Is OEM available?

A: Yes, all goods can be custom made by your requirements, including packing, LOGO print, etc.

Q: Can we buy 1 pc for sample testing?

A: Yes, we are glad to send 1pc for quality testing if we have stock of the model you required.

Q: How to deliver the goods for trial order or small order?

A : For small order, we prefer to choose international express, such as DHL, TNT, EMS which are faster and more convenient for customer. Also, we cooperate with an express agent that can give us a big discount for express fee which is much lower than that quoted by official. For the goods with detachable battery, the express fee can be lower down if the goods is sent out without battery.

Q: What kind of payment your company accept? 

A : T/T , Western Union,MoneyGram, Paypal , ect.

Q: If we have not found the model from website, what should we do?   A: Please email us with description and picture of the product, we research and develop new model every month, and some of them maybe have not been uploaded in website immediately. But If this is a new products for us, we can develop it for you after get all detailed information about your product.


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