SEC385 3D Electronic Compass Sensor Accuracy 0.5° RS232/RS485/TTL Optional

Place of Origin CHINA
Model Number SEC385
Minimum Order Quantity 1 unit
Packaging Details BWSENSING BOX,Express package
Delivery Time 3-5 working days
Payment Terms T/T

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Product Details
Name Electronic Compass Sensor Power Supply 5V DC
Working Current 30mA(40mA Max) Heading Accuracy 2°(RMS)
Resolution 0.01° Repeatability 0.5°
Inclination ±30°
High Light

5VDC electronic magnetic compass


Accuracy 0.5 electronic magnetic compass


30mA high precision digital compass

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Product Description

SEC385 Inclination Compensation 3D Electronic Compass Accuracy0.5° RS232/RS485/TTL Optional GPS Assisted Navigation




SEC385 is a cost-effective three-dimensional electronic compass. It adopts the hard iron and soft iron calibration algorithm,so that it can still provide high-precision heading information when its inclination reaches 90°. It has the advantages of small size and low power consumption, and is suitable for miniaturized, high-precision sensitive measurement systems.SEC385 integrates a three-axis magnetic sensor,can provide accurate heading data even in extremely harsh environments.

Performance Index:


Compass heading parameters Heading accuracy




Resolution 0.01°
Repeatability 0.1°
Compass tilt parameters Pitch accuracy 0.1º
Roll accuracy 0.1° for pitch<80°
Resolution 0.01°
Tilt range ±80°
Calibration Hard magnetic calibration Yes
Soft magnetic calibration Yes
Limited tilt user calibration Yes
Physical properties Dimension L60 x W59 x H29 (mm)
Weight 180g
Output form RS232/485/TTL Interface
Interface characteristics Start-up delay <3s
Maximum output frequency 50Hz
RS232 communication rate 2400 to 115200 Baud rate
Environment Anti-vibration performance 2000g



SEC385 3D Electronic Compass Sensor Accuracy 0.5° RS232/RS485/TTL Optional 0



● Satellite tracking

● Petroleum geological survey

● Optical rangefinder

● GPS assisted navigation

● Marine survey

● Underwater navigation

BWSENSING's Accuracy Traceability System:

SEC385 3D Electronic Compass Sensor Accuracy 0.5° RS232/RS485/TTL Optional 1

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.


SEC385 3D Electronic Compass Sensor Accuracy 0.5° RS232/RS485/TTL Optional 2




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. Commom 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.


Q5: Precausions for using Electronic compass

A: Please refer to manual, and keep away from sensitive items like iron or motors, or even your cell phone;Electronic compass outputs magnetic north, not true north.


Q6: How to calibrate electronic compass?

A: a. Consult Sales about corresponding calibration videos.

b. It is divided into common calibration and 12 point calibration. The 12-point calibration is only for high-precision electronic compass.

c. Customized NMEA output.