BW-AH57 Low-Cost Modbus Attitude And Heading Reference AHRS

Place of Origin CHINA
Model Number BW-AH57
Minimum Order Quantity 1 set
Packaging Details BWSENSING BOX,Express package
Delivery Time 5-8 working days
Payment Terms T/T

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Product Details
Pitch Accuracy 3°(RMS, Dynamic) 0.5°(RMS, Static) Roll Accuracy 3°(RMS, Dynamic) 0.5°(RMS, Static)
Resolution 0.01° Tilt Range Pitch± 90º,Roll±180º
Dimension L55 X W37 X H24(mm) Weight (with Cable) 60g
Start-up Delay <3s Impact Resistance 2000g
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MEMS imu inertial measurement unit


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Product Description

BW-AH57 Series Low-cost Modbus Attitude Heading Reference System Heading accuracy 3° Heading Resolution 0.01°



BW-AH57 uses industrial-grade MEMS accelerometers, gyroscopes and magnetometers, and uses algorithms to ensure measurement accuracy.

Through various compensations such as nonlinear compensation, quadrature compensation, temperature compensation and drift compensation, the error source of BW-AH57 can be greatly eliminated and the product accuracy level can be improved. BW-AH57 has a digital interface, which can be easily integrated into the user's system.


Performance index




Attitude parameters

Pitch accuracy

3°(RMS, dynamic)

0.5°(RMS, static)

Roll accuracy

3°(RMS, dynamic)

0.5°(RMS, static)

Resolution 0.01°
Tilt range Pitch± 90º,Roll±180º
Heading parameters Heading accuracy
Resolution 0.01°


Physical characteristics

Dimension L55 x W37 x H24(mm)
Weight (with cable) 60g
Output mode Output RS232/RS485/CAN



Interface characteristics

Start-up delay <3s
Maximum output frequency 100Hz
Serial communication rate 2400 to115200 Baud rate
Digital output format Binary high-performance protocol
Environment Impact resistance 2000g


BW-AH57 Low-Cost Modbus Attitude And Heading Reference AHRS 0

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Q1: Accuracy definition of products

A: RMS accuracy, the accuracy of each product can be traced.Accuracy test report can be provided if required.


Q2: How to select suitable model?

A: Users should check the following points:

a. Single or dual axis?

b. Common protocol, Modbus or CAN?

c. Dynamic or static Application scenarios?

d. Horizontal or vertical installation?


Q3: How to purchase?

A: If you want sample, please purchase on BWSENSING online shop. We accept Paypal/TT/CC.If you purchase in bulk, it is recommended to consult the sales for the best price.


Q4: How long is the warranty period?

A: One year.



Company introduction

Wuxi Bewis Sensing Technology LLC(BWSENSING) is an innovative fast growing company established in 2010. The company was born in The Institute of Microelectronics (IME) of Peking University. We have achieved the top spot in the middle and high-end industry applications in the Chinese market.

From 2019, BWSENSING ® is approved as our global brand.With 10 years experience in the research-design-development and manufacture of a range of Inertial sensor technology, BWSENSING posses the skills, knowledge and experience to provide fully integrated OEM/ODM design and manufacturing services for Inclinometer, Electronic Compass, IMU, AHRS, GNSS/INS and Fiber Optic Gyroscope. As the company co-founder Dr. Guangyi Shi said, we will use the Accurate and Cost-effective sensors to make a greater contribution to the global society for a better IoT world.


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