E3+ Prop Controller

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For 2018, we took our E3 controller and updated the interface to a full color LCD display. The E3 has proven itself to be a flexible and reliable workhorse controller performing in haunts, amusement parks and museums around the world. Now with the updated user interface it is easier to use than ever.

What type of application is the E3 designed for?

Perhaps you want something to pop out of a crate then fire an air cannon while a light flashes, and you want sound- good CD quality sound, Oh! And make it loud! That is a perfect example of the niche the E3 fills.

Inputs & Outputs

For starters, there is 1 trigger input and 3 relay outputs. Each relay can switch up to 3 amps of current. Control lights, solenoid valves attached to air bags or pneumatic cylinders, relays- anything you can turn on and off with a switch can be automated with the E3. The normally open and normally closed side of every relay is available on the output connector. The trigger input will work with a variety of switches, sensors or contact closures.


The E3 is programmed using 4 buttons. A full color LCD display guides you through the process. Pressing the buttons allows you to create your show in real-time and see it live while it happens.

Through the built in menus you can choose to create up to 9 different shows -each of these shows can have a unique sound track. You can enable a 10th ambient show that will loop continuously between triggers, and yes, the ambient can have a sound track too. There are pre and post show delays available for every show. You can also choose a normally open, or normally closed trigger input.


The E3 can hold nearly 10 minutes of high quality MP3 sounds files. Although capable of playing WAV files, we recommend using MP3s to maximize storage capacity. This sound is then played through the internal 40 Watt mono amplifier. There is also a stereo line out jack if you want to add an external amp or if you want access to both left and right channels. An assortment of sound effects are preloaded on the E3 when it ships, so you can hook up a power supply and literally use it right of the box. A standard USB jack is provided on the front of the controller to download your own sound files.

Alternately, we can ship you the E3 preloaded with your sound files. Select the "Preloaded With Your Audio" option at checkout. We will contact you via email regarding the sound files


HauntBots builds the most rugged controllers available. Our extruded aluminum enclosure is literally strong enough to drive a car over. And, the entire circuit board is protected inside that enclosure. The only things that stick out of the enclosure are buttons and connectors. Speaking of connectors, the E3 uses the same plug in style connectors as our other HauntBots products. In the unlikely event of a failure, just pull the plugs and drop in a replacement.


The USB port that is used for downloading your own sound files can also be used to read/write show files between an E3 and a computer or to update the firmware. For prop manufacturers, this means creating the show once and then just downloading it to subsequent props.

  • Shipping Weight: 1lbs

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This product was added to our catalog on Wednesday 29 May, 2013.

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