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Ultrasonic Deterrents for Personal, Home and Property Protection

This page describes some very unique items generally categorized as "ultrasonics." The ultrasonic receiver is a device that can detect sound waves that are normally beyond the range of human hearing, and then translate this signal to audible frequencies. The ultrasonic generators are devices that create ultrasonic sound waves, which can be used in some novel ways such as a safety deterrent or conditioning device.

Ultrasonic Receiver
Lets you hear the amazing world of high-frequency sounds. Many uses in the scientific field especially entomology to study insects, bats and other animals. Also used for man-made sounds such as leaking air, water, gas, steam, pipes, etc. Or as a detection device allowing one to hear animals or people walking in the woods on dry ground, even through wet grass. A crumpling plastic bag, the jingling of a key chain, etc. This unit opens a whole new world allowing you to listen to sounds you didn't think even existed!

Click HERE for actual bat sounds recorded using the HT90

HT90 Instructions

Included headsets may differ from those shown in picture.

Hear The Astounding and Incredible World Of High Frequency Sounds - Beyond That Detectable By The Human Ear!

Hears Ultrasounds and Rejects Normal Sounds

Battery operated directional device detects sounds beyond the range of human hearing, with narrow band tuning from about 23 to 27 kHz (-3db points), allowing you to hear and pinpoint mechanical, electrical and biological sounds such as leaking gases, air, water; corona leakage; motor frictional sounds potentially including bearing wear breakdown noises; bats, insects, and other sounds of mother nature; a hunter's aid for high frequency sounds made by animals traveling through dry woods or even wet grass -- even beading water! There are countless applications for this unit.

Pinpoint Those Annoying Sounds Coming From Animal Repellers, and Those Who Might be Purposely Using Ultrasounds Against You for Harassment

The 12" aluminum parabolic dish increases the amount and sensitivity of collected sound (increases the reception of fainter sounds, or those from a longer distance), and provides more of a directional target location.

This device is not made to hear sounds that the human ear can normally perceive, but instead it will hear ultrasound beyond the range of human hearing. (To amplify normal sounds, please see our other devices, such as the Cybernetic Ear, TurboEar, Parabolic Bionic Ear, Parabolic Microphone, Shotgun Microphone, etc.)

Front panel controls:
  • 3.5 mm phono jack for audio output into headsets or recorder or both
  • On/off and volume control
  • Narrow band tuning dial from 23 to 27 kHz (-3db points)
  • Uses eight AA batteries installed in handle (not included)

- Assembled and ready-to-use Ultrasonic Receiver with Headsets, Dish, & Microphone Mount and included Rental option ... $199.95
- Kit & Plans with all parts and headsets, requiring assembly ... $149.95
- Paper Plans ... $10.00
- Downloadable Plans ... $4.00


Ultrasonic Generators
Can discourage and intimidate intruders, and train dogs to stop barking.
There are many home and personal alarms available, but none have a deterrent that can prevent or discourage an encounter quite like ultrasonics. You will find on this page devices that can be tied in with alarm systems to provide a PAIN FIELD that can produce very uncomfortable and intimidating effects. These can range from debilitating and incapacitating, to enervating fear and threatening, to sickening nausea and nerve racking paranoia…all without physical contact! Effects can vary to an extent with number of units used, installation, distances, target sensitivity, and other variables. Similar devices with this technology are used by various militaries (including the US and Israel) and peace-keepers as a deterrent to discourage and break up unruly crowd gatherings and potential riots. See our downloads for more available data and other more effective deterrents.

Levels of Security Deterrents & Their Methods
The potential user should download and read this material to understand the objective of these systems, and to note other more effective options.

Sonic Nausea Device
Great for ridding unwanted visitors, inside or out. Discreetly discourage unwanted gatherings, with radio control option allowing operation from up to 300’ away.

Easily-hidden circuit produces a very annoying sonic wave that people feel, yet do not hear, and cannot tolerate! Acoustic wave shape makes the source hard to locate.

Great little electronic device can be used to clear out those guests that never want to leave long after the party is over. This same basic design (with a higher output, and licensed under a different trade name) is being used in the UK for discouraging people from congesting near target areas.

Adjustable 8k-25kHz frequency. Runs on a 9 volt battery, or 8 aa 1.5 volt batteries for 12 VDC providing hours of operation (batteries not included). You may also use a 12 vdc wall adapter to run from an outlet for more permanent applications. Please note that 12 volts is more effective! Dimensions are 1.5" deep x 2" diameter (2.75" across mounting brackets).


The NAUSEA10RC is the radio controllable version, which can be operated at distances out to 300 feet. This allows the user to have a lot of fun playing jokes on people, or provides a very useful tool against unwanted intrusions and unwanted congestions of people. The NAUSEA10RC also includes a 12V wall adapter, allowing it to run on wall power 24/7.

- Sonic Nausea Device, Assembled (with remote control & wall adapter) ... $89.95
- Sonic Nausea Device, Assembled ... $49.95
- Sonic Nausea Device, Kit & Plans ... $29.95
- Paper Plans ... $10.00
- Downloadable Plans ... $4.00
- Optional 12VDC 1Amp Fully Regulated Wall Adapter (to run the NAUESA10 on wall power 24/7) ... $8.95

Invisible Pain Field Generator
Shirt pocket-sized, spooks dogs and other animals, even reported to scare bears away and people too!

Our PAIN FIELD devices are generally very effective for their intended purpose, but living things sometimes may react differently to this type of stimulus when used for Animal Control.

Miniature electronic device intended for potential vicious dog and animal protection. May discourage human encounters. Also used for field research work. Complex sonic shock waves are internally adjustable for maximizing on target subject. Operating frequency is 18-19kHz (right at the edge of human hearing). Sweep mode intensifies effect. Effective range of up to 25 feet.

IPG9 Instructions

  • 125 db directional pain field sonic waves
  • 4" x 3" x 2" Shirt pocket sized
  • Operates on a 9 volt battery
- Assembled and Ready to Use ... $104.95
- Kit & Plans ... $74.95
- Paper Plans ... $10.00
- Downloadable Plans ... $4.00

Phasor Blast Wave Pistol
These handheld devices have many uses. They are portable and can flush out rats and other vermin in areas as silage bins, chicken coops, around dumpsters, etc. They can be used as a survey tool for research with animals on the effect of this pain field, and serve to determine whether the user may want a more permanent installation and system to help control his problem.


PPP10 Instructions

Highly effective device intended for animal control, routing out rodents, predators from bird feeders, control of unruly dogs and other vicious animals, cats, even people! Unit is fully adjustable for maximizing effect on target subjects. Hearing protection recommended if used inside. Very directional when used outside.

  • 130-135 db Of Directional Pain Field Sonic Shock Waves
  • May be set to an inaudible but intolerable feeling of pain or discomfort
  • 3-1/2"x 5" Barrel Houses Transducers And Electronics
  • Butt Section Houses 8 AA Batteries
  • Sweep and Frequency Controls adjust for maximum effect on target
  • PPP10 dims: 6"L x 3.5"W x 10"H
  • PSP60 dims: 8"L x 7"W x 11"H (front plate about 7"x5"x1.25")
  • The PSP60 is an enhanced PPP10 design with nearly 3 times the output power, and also includes a jack to plug in an adapter for running on wall power.

These PAIN FIELD producing devices are very effective for their intended purpose and good for evaluating the use of larger and more expensive units for permanent installation and use.


PSP60 Instructions
- Assembled and Ready to Use with Rental option ... $109.95
- Kit & Plans ... $89.95
- Paper Plans ... $10.00
- Downloadable Plans ... $5.00
Higher Powered Version:
- 135db, Assembled with Rental option ... $374.95
- Paper Plans ... $10.00
- Downloadable Plans ... $5.00

Phasor Pain Field Generator and Alarm with Radio Control
These Matrix units are designed as directional sources of concentrated pain field energy. They can be used to protect areas as gun rooms, garages or where a concentrated effect is necessary. Law enforcement installs multiple units on the roof of vehicles discouraging potential unruly gathering of problem people. Connect to other intrusion detectors, video systems, and home security systems for concentrating pain field effects.
PPF40 Instructions

A similar device, licensed under a different trade name, is used in the UK to break up groups of unruly people.

Produces a power field of time variant ultrasonic shock wave energy. Dual-bank controls allow full adjustability of 2 independent channels across frequency, pattern, and sweep range, allowing for extremely effective outputs to be "dialed in" for best effect. Outputs can also be synchronized to match. Fully adjustable frequency range from 10kHz to 25kHz, with the PCC30 producing up to 140db of sound (135db for the PPF40) measured at 30cm. Can be mounted to vehicles for potential crowd control applications. Easily moved lightweight and self-contained for portable operation in the woods, etc. Excellent for keeping out two and four legged pests from gardens, unauthorized areas, etc.

Also excellent deterrent to intruders when used in the home. The small, lightweight, highly-portable remote-controlled key fob transmitter is easily carried at all times, allowing immediate activation of the Phasor Pain Field Generator from anywhere in the home to disorient intruders. This will buy you time to obtain a more effective weapon, which are usually too bulky to be carried at all times.

Hearing protection recommended when in use.

PCC30 Instructions

These units are deterrents. They can be used with detection systems that will detect an intrusion of a person or an animal or any other threat. We have selected a sound pressure level and a strength that we feel is safe to use and liability-free. This means you can use it feeling comfortable it will have a deterring effect on the intrusion and yet at the same time will not cause injury to the intruder where you could be liable. You might want to check your local laws, as some states unfortunately favor the rights of the perpetrator far more than the homeowner or law-abiding citizen. Even though these products will not cause injury, they could create a situation in a highly politically correct atmosphere, so it is always good to know your local environment. We can only warn you of this, and it has not yet happened (knock on wood).

  • Can interface with other intrusion detectors, video systems, home security systems, etc.
  • 135 (PPF40) or 140db (PCC30) Matrix Output
  • Dual-band control (PCC30)
  • Maximum effect occurs when set for inaudible feeling of intense pain
  • Frequency adjustable from 10kHz to 25kHz
  • Intensity can range from "alarm" to an intense pain field effect
  • Adjustable Sweep rate greatly enhances effectiveness
  • 12VDC internal batteries (8 "D" cells) or external 12VDC rechargeable batteries will operate for hours (batteries not included)
  • 12VDC Wall Adapter (Included) for 115VAC operation
  • Accessible controls
  • Built-in long range radio control with key chain transmitter for activation
  • Remote Jack for external triggering by sensors or pushbutton
  • PPF40 Size: 8" x 8" x 5"
  • PCC30 Size: 16" x 8" x 5"
The Remote Control (RC) allows operation from over 300 feet away, where for example this device could be concealed in an area you want to rid of animal and/or human intruders, and then activated unobtrusively and undetected from a distance when you notice congregation in the area. Or home intrusion can be prevented from anywhere in the house by remotely turning on this system to discourage or deter a situation. The receiver draws power from the system, so separate batteries are not required. The keychain transmitter operates like an automobile remote starter and will last for thousands of start/stop cycles with its replaceable battery. The small size of the transmitter allows it to be easily carried with you at all times, so you are always ready. Instructions included. remote control


- 140db 8-Transducer Assembled with Remote Control, built on request ... $699.95
- 135db 4-Transducer Assembled with Remote Control (with Rental option) ... $439.95
- 135db Kit, with Remote Control ... $299.95
- Paper Plans ... $15.00
- Downloadable Plans ... $7.00

Phasor Pain Field Generator and Deterrent with Remote Control
Produces a feeling of intense pain and disorientation. Excellent for Home Protection; can be activated using a wireless key chain transmitter, or automatically when connected to your security system or other detection methods. Provides precious moments to vacate or get ready to stand your ground with more active force.

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PPG300 Instructions

This powerful sonic deterrent can be triggered by multiple sensors, or integrated with an existing home security system (see our Radio Control and System Interfacing for information and examples).

  • Easy to install with basic tools. Uses included low voltage wiring and universal mounting brackets
  • Alarm may be activated manually at the control panel or with the remote control, or triggered automatically through any of the three (3) detection inputs for multiple sensors (trip wires, window tapes or broken window sensors, door and window switches, or any other external signals from  detection devices like an existing home security system). See downloads for further information
  • Uses Four (4) special high output 130db+ Military issue Directional Ultrasonic Polarized Piezo Transducers with frequency sweep range and rate controls to dial-in a maximum effect
  • Adjustable Frequency (from 10kHz to 25kHz), factory set to ~18kHz
  • May be set for inaudible feeling of pain and disorientation, or sweeped with audible sound for maximizing effect
  • Covers four multiple areas up to 5000 sq ft, or concentrated on specific target areas & rooms (such as gun rooms, safes, etc.); coverage may differ depending on layout and absorbent material in the protected area
  • Test Switch activates a lower, less painful frequency for testing
  • Low Liability Causing No Lasting Effects to Perpetrator
  • The central console can drive 6 remote satellite stations that are interconnected using safe low voltage speaker wiring (note that four transducers are supplied)
  • Runs from a 12V battery (not included) or included wall adapter for normal 115VAC home power
  • Control console is 3 x 4 x 6” and contains all controls and connection jacks to other systems, power, and transducers
  • See downloads for more data on radio control, and available addons like panic alarms, shockers, and other deterrents that can be interfaced to this system
  • Alarm may be activated or Reset remotely by radio control, or on the device by Manual Switch

The Phasor Pain Generator is a universal system capable of protecting your home, family, and personal property.

Note: there are circumstances where a physical force back up may be justified and is highly recommended in certain situations if all else fails.

- Assembled, with Remote Control ... $399.95
- Kit, with Remote Control... $249.95
- Paper Plans ... $15.00
- Downloadable Plans ... $7.00

The Above System for the Auto

Similar version of the PPG30, but for automobile protection (2 transducers & no wall adapter). Produces intense pain to potential thief. Easily interfaces with your existing anti-theft alarm. No one will want to take your car for a spin with this going off!

  • Easy to Install in Vehicle
  • Uses Batteries or Vehicle Power
  • Small, Easily Concealable Package
  • Low Liability
- Ready to Install, with Remote Control ... $309.95
- Kit/Plans, with Remote Control ... $174.95
- Paper Plans ... $15.00
- Downloadable Plans ... $7.00

Ultrasonic Blaster For Scientific Research

Sonic Shockwaves Blow Holes In Metals!

  • 1/2 Quart Container
  • 40 KHZ 50 Watt Transducer
  • High/Low Power Switch
  • 115 VAC Operation
  • 6"x 5"x1-1/2" Base
  • Load Adjusting Circuitry
  • Use to Clean PC Boards
  • Jewelry, Coins, Small Parts

Produce "Cold Steam", Atomize Liquids, Clean Objects!

- Kit & Plans ... $149.95
- Paper Plans ... $15.00
- Downloadable Plans ... $7.00

Ultrasonic Generator

Cavitates water without contact

Acoustical 25 KHZ @ SPL of 130 DB will atomize small amounts of water! May be focused by positioning to our "PAREF" Parabolic Reflector for experimentation. Tunable over a limited range. Wall-power operated (115VAC) two-part device with 1" resonant transducer.
- Assembled & Ready to Use ... $99.95
- Kit & Plans ... $79.95
- Paper Plans ... $10.00
- Downloadable Plans ... $4.00

Ultrasonic Oscillator

High Power 125 Watt Circuit For Cleaning Welding, Soldering And Cutting

- Paper Plans ... $10.00
- Downloadable Plans ... $5.00