PB-A19 Ultrasonic Obstacle Avoidance Sensor 28cm - 450cm Range UART Module Waterproof IP67

₹3,999.00 ₹ 3388.98 + 610.02 GST
In stock

1-7 Days Express Delivery in India Available

Ultrasonic sensors are a non-contact method of remotely monitoring the distance between solid objects or liquid levels in a container. Used in various applications, such as measuring a container’s fill or the distance to an object with a solid flat surface

These Ultrasonic sensors work in a similar way to radar and sonar systems. They do not require much electrical power to run, making them ideal for battery-powered applications. The sensor consists of two parts transmitter and a receiver. The transmitter emits high-frequency sound waves, and the receiver processes the echo that results from that signal bouncing back from an object. 

PB-A19 series Module adopts a transmitter-receiver integrated enclosed waterproof cable probe. It has a 28cm small blind area, short to long distance detecting, 28mm to 4500mm measuring range. The sensor adopts a compact, sturdy PVC housing, meeting the IP67 water intrusion standard. The A19 has a built-in high-precision ranging algorithm and power management program, with high-ranging accuracy and very low power consumption. The sensor comes with a UART output and  In addition, Firmware filtering for excellent noise tolerance and clutter rejection. Best suitable for robot obstacle avoidance and automatic control, object proximity and presence detection, and parking management system applications. 


  • Product model: PB-A19
  • Operating Voltage: 3.3V-5v
  • Average Current: ≤8mA
  • Standby current: ≤10uA
  • Blind Zone Distance: 28cm
  • Ranging Distance: 28-450cm
  • Output: UART
  • Operating Temperature: -15~60℃
  • Storage Temperature: -25~80℃
  • Protection Rate: IP67


  • Accurately determines the distance between objects.
  • Easy to use and install on existing equipment.
  • Interfaces with many types of controllers. 
  • Manage processes more efficiently.
  • Simplifies the management of expensive resources.
  • Works reliably in extreme environments.
  • Works in the dark.
  • Works with transparent objects. 
  • Low-cost option, high-value results.
  • Minimal power requirements.


  • Smart Factory
  • Energy Sector, Beverage, and Pharmaceutical Industry
  • Supply Chain and Warehousing
  • Waste Management
  • Chemical Level Monitoring
  • Medical Device Applications
  • Smart Environments
  • Agricultural Applications

Package Includes:

1x PB-A19 Ultrasonic Obstacle Avoidance Sensor  28cm - 450cm Range UART Module  Waterproof


PB-A19 Ultrasonic Obstacle Avoidance Sensor Over view
More Information
Technical Details

PB-A19 Ultrasonic Obstacle Avoidance Sensor Dimensions


PB-A19 Ultrasonic Obstacle Avoidance Sensor Wiring Interface

Wiring Interface

Ultrasonic Sensor TypeObstacle Avoidance Sensor
Blind Zone (cm)28
Max Detection Range (cm)450
Output TypeUART
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Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in

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