981 Overview

When working, ultrasonic receivers should have a frequency of 42kHz. Ultrasonic receivers are rated at 2.5V~5.5V. Ultrasonic receivers are packaged in the Bulk for protection.

981 Features

Frequency: 42kHz
Rated Voltage: 2.5V~5.5V
Bulk Package
Moisture Sensitivity Level: 1 (Unlimited)

981 Applications

There are a lot of Adafruit Industries LLC
981 Ultrasonic Receivers applications.

• Weather station monitoring
• Bin level measurement
• Proximity zone detection
• People detection
• Robot ranging sensor
• Long range object detection
• Environments with acoustic
• Environments with electrical noise
• Height monitors
• Auto sizing