- Uses advanced ultrasonic sound technology
- Helps to repel insect pests & rodents
- Plug-in mains operation chemical free


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Operates in 6 10 V single voltage Wide operation frequency range up to 250k Hz Temperature controlled oscillator traces resonant frequency drift of transducers Built-in 32 steps time controlled gain amplifier Built-in band pass filter of less external tuned components Bi-direction IO for both driving pulse & echo Adjustable system clock for various detection range Suitable for car reversing aids tape measurements & other sonar ranging applications The PW-0268 ultrasonic sonar ranging IC is designed specially for ultrasonic echo ranging application. This chip consists of an external tuneable RC oscillator with a special feature of automatic frequency tracing which compensates the resonant frequency shift of used transducer due to temperature change a stage of fixed gain pre-amplifier setting externally a 32 steps time controlled gain amplifier a less external components band pass filter a comparator converts analogue signal to TTL digital signal for external µP processing & a tuneable timer acts as time reference for chip clock. ...

Operating Voltage 6 10 Vdc single source Operating frequency broadband output ranging up to 250k Hz Built-in variable RC oscillator matching transducers with different frequencies High gain amplifier varies with time over 32 steps Integrated Band Pass Filter reduces external component count Bi-direction IO Pin simplifies the control function for transmitting a pulse & receiving an echo An adjustable System Clock enables the control of the number of pulses transmitted the slope of the variable gain amplifier & the pulse repetition rate Board size L x W 27.9 x 18 mm The SRM400 is a sonar ranging module utilising new developed Sonar Ranging IC PW-0268 which can work with all PT or EP type transducers. SRM400 provides as a shortcut to develop car reversing systems or some other distance measurement systems for design engineers who are not very familiar with analogue circuit andor the operation of ultrasonic transducers. By using this module engineers can focus firstly on the other fields of digital circuit & software designs as well asbrsome other mechanical issues. After first stage then you can either design your own analogue circuit based on the module construction or consult with factory for making your own module for your special needs. ...

Air ultrasonic ceramic transceiver
- open type 40k Hz frequency 10mm diameter Aluminium case Industry standard open faced transceiver.
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Air ultrasonic ceramic transceiver
- open type 40k Hz frequency 12mm diameter Aluminium case Industry standard open faced transceiver.
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Air ultrasonic ceramic transceiver
- open type 40k Hz frequency 14mm diameter Aluminium case Industry standard open faced transceiver.
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Air ultrasonic ceramic transceiver
- open type 40k Hz frequency 14mm diameter Aluminium case Industry standard open faced transceiver.
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Air ultrasonic ceramic transceiver
- open type 40k Hz frequency 16mm diameter Aluminium case Industry standard open faced transceiver.
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Air ultrasonic ceramic transceiver
- open type 40k Hz frequency 16mm diameter Plastic case Industry standard open faced transceiver.
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Air ultrasonic ceramic transceiver
- open type 40k Hz frequency 18mm diameter Aluminium case Industry standard open faced transceiver.
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