Screecher Mk1 – Operations Manual

Table of Contents
  • Saftey and Product Maintenance

    Please read these instructions before using this product.

    1. This pest repelling product is environmentally friendly, safe and non harmful to pest and pets.
    2. Do not restrict airflow around the device.
    3. Do not position behind other objects. For best effect position in open space areas.
    4. Do not attempt to open the device beyond its functional use.
    5. This product is not a toy. Do not hold up to your ears with either the ultrasonic or sonic sounds activated .
    6. Check all cables used to connect the device for cracks or damaged insulation. Do not use the device in case of defects or serious damage.
    7. If repairs are required, original replacement parts should be used exclusively in order to avoid serious damage. Repairs or other work may only be carried out by authorised personnel. Please contact us for warranty information and/or claims.
    8. Please consider other people and their privacy and peaceful enjoyment of property before using the security alarm/ harassment sound and strobe light.
  • Overview and Specifications

    The Screecher™ is a bird control (scarring) payload that has been designed for use with our AeroDrone systems. It is powered by a 12V DC source and operates completely independent of the drone. This also allows Screecher to be used on other types of drones as well.

    Hardware Overview

    Below is a hardware overview diagram that shows all the major components of the Screecher payload.

    Hardware Specifications

    Size (W x L x H)130 x 110 x 110mm
    Weight304g (excl. power cable)
    Power Input12V DC
  • Powering the Unit

    Power Switch

    The power switch enables the unit to operate. It is located in the
    upper right hand corner of the control panel (as shown below).

    Slide the switch to the “ON” position to start the unit and the “OFF” position to turn it off.

    CAUTION: Please check the position of the volume dial as having it turned all the way up and switching the unit on may cause pain or damage to your ears Please leave the unit off for 30 seconds before turning it back on to allow the electronics to completely reset.
  • Volume Control

    The volume dial is located on the upper left-hand side of the control panel (as shown below).

    Turning the dial anti-clockwise will reduce the sound output level, while rotating the dial clockwise will increase the sound output level.

    CAUTION: Take care when turning the dial since the unit may be in a temporarily inactive state (ie. delay) when the dial is rotated. It could then reactivate at a high sound level, causing pain or damage to your ears.
  • Programming and Settings

    To program your Screecher Bird Control Payload you will need a small blade screwdriver, toothpick, or some other small, rigid object to toggle the switches in the switch array. The switch array is located on the right-hand side of the control panel (on the back of the unit) as shown below.

    A switch is ON when switched towards the right-hand side and OFF when towards the left-hand side. This is indicated with “ON”, “OFF” labels underneath the switch array.

    Recording Setting Switches

    The Recording Setting Switches (shown below) are the first eight switches in the switch array (labeled “1” to “8”). Each switch has a recording number to the right of it that corresponds to a different sound recording.

    Mode Setting Switches

    The Mode Setting Switches (shown below) set the various modes of operation, such as the amount of time between playing bird distress calls (the “Time-Off”), when the unit will operate (ie. day only, night only or 24 hours, AKA the “Schedule Time”), and whether the unit will operate in the random mode or normal mode.

    Switch #Mode or Function
    1 and 2Sets the “Time Off” Period
    3 and 4Sets the “Schedule Time” Period
    5Turns Random Mode ON or OFF

    “Time-off” Switches

    The two “Time-Off” switches are located just below the recording switches in the switch array. When the unit is set to one of the various Time-Off modes, the unit will delay a number of seconds or minutes between playing the recorded sounds.

    PLEASE NOTE: The unit will play all of the selected recordings (either sequentially or non-sequentially, depending on the Random Mode) then it will go into the delay time.

    The time the unit stays off depends on the Time-Off and Random Mode settings. If the unit is operating in Random Mode, the unit will delay anywhere from the minimum value to the maximum value for that Time-off setting. If the unit is not in Random Mode, it will only delay for the minimum amount of time.

    To set the Time-Off period (or delay interval), use the following settings on switches 1 and 2 in the mode settings section of the switch array.

    Switch 1Switch 2Time-Off Period

    17 sec


    50 sec


    1 min


    4 min 15 sec


    5 min


    10 min

    OFFOFFExtra Long

    10 min


    30 min

    Schedule Time Switches

    The two “Schedule Time” switches are located just under the “Time-Off” switches in the bottom switch array.

    • ‘Night Mode’ – operates the unit at night
    • ‘Day Mode’ – operates the unit during the day.
    • “24-Hour Mode” – operates the unit continuously, regardless of the time of day.

    The photocell that senses sunlight and determines the “time-of-day” is susceptible to bright light. Take care not to have bright lights shining towards the unit since this can prevent the unit from operating properly.

    To set the time period for the unit to operate set switches 3 and 4 in the Mode Function settings to the following:

    Switch 3Switch 4Mode
    ONOFFDay Mode
    OFFON24-Hour Mode
    ONONNight Mode

    Random Mode Switch

    The Random Mode Switch is the bottom switch in the switch array. The unit will randomly play the selected recordings in non-sequential order when operating in Random Mode. When the unit is not operating in the Random Mode, the unit will play the selected recordings in a sequential order. Random Mode is recommended to keep birds from adapting to a preset pattern of sounds.

    To operate the unit in Random Mode, set switch 5 as follows:

    Switch 5Mode
    ONRandom Mode ON
    OFFRandom Mode OFF
  • Troubleshooting

    • Unit is switched ON, but no sound is being emitted.
    • Check power source.
    • Check volume setting.
    • Check at least one recording is set to ON.
    • Check “Schedule Time” setting.
    • Unit is switched ON but plays the same recording over and over.
    • Check recording settings and make sure more than one recording is set to ON.
    • Switch unit OFF for 30 seconds and then switch back ON.
    • Unit is not operating correctly in DAY or NIGHT mode.
    • Double check mode settings.
    • Make sure photocell is not obstructed.
    • Make sure no bright lights pointed at the unit are affecting the photocell.
    • Unit does not function properly when connected to 12V battery.
    • Check battery condition.
    • Check power wire condition.

    If, after trying these solutions, you’re still having issues with your Screecher, please contact us for further help and support.