This is a matched pair of ultrasonic sensors, one transmitter and one receiver, for building distance-measuring or presence-detecting circuits. Each sensor has a plastic housing 16mm in diameter and 12mm tall, 10mm lead spacing and 2000 pF capacitance. The listed range is 20 feet.
Key Features
- Includes 1 transmitter and 1 receiver
- Listed range of 20 ft
- 2000 pF capacitance
- 16mm diameter x 12mm height
- 10mm lead spacing for PCB mounting
- Plastic housing
Specifications
| Contents | 1 transmitter, 1 receiver |
|---|---|
| Frequency | Listed as 40Hz (see note) |
| Capacitance | 2000 pF |
| Size | 16mm dia. x 12mm high (approx.) |
| Lead spacing | 10mm |
| Range | 20 ft |
| Housing | Plastic |
| SKU | 29ULTRASONIC |
What's Included
- 1 x ultrasonic transmitter
- 1 x ultrasonic receiver
Ideal For
Electronics students building their own ultrasonic rangefinder, alarm or echo experiments.
Frequently Asked Questions
How do these work?
The transmitter sends a burst of high-frequency sound; the receiver picks up the echo, and the time delay tells you the distance.
Is this a ready-to-use module?
No. These are bare transducers; you need your own drive and receive circuit.