Four independent relays
Switch four separate effect circuits from one compact controller. Ideal for building a complete scare sequence around valves, lights and compatible control inputs.
Haunted attraction automation
Make the scare happen on cue.
Compact prop control for haunts, scare mazes and interactive effects. Trigger up to four relay-controlled devices, respond to four inputs and configure the sequence directly over the controller’s own Wi-Fi hotspot.
- 4relay outputs
- 4trigger inputs
- Wi-Filocal setup
ST-4
SYSTEM READY
INPUTS
1234
LOCAL CONFIG
RELAYS
R1R2R3R4
No internet connection required
Configure from phone, tablet or laptop
StandaloneRuns without cloud services
Purpose-builtMade for props and effects
Simple setupConnect directly by Wi-Fi
Expandable ideaOne controller, many scares
Introducing
The Scream Tek ST-4
A focused four-channel controller for pneumatic valves, lighting effects, sound triggers, motors through suitable external control gear, and other attraction devices that can be switched by relay.
The ST-4 keeps the hardware straightforward: four trigger inputs, four relay outputs and a local Wi-Fi configuration interface. Power it up, join its hotspot and set up the effect without installing specialist desktop software.
Built for the moment
Less setup. More impact.
Everything on this page is centred on the current ST-4 hardware, with no audio or cloud features added to the promise.
Four trigger inputs
Connect suitable buttons, switches or sensors so the scene can react to guests, actors or timed attraction events.
Connect directly by Wi-Fi
The controller creates its own hotspot. Join it from a nearby phone, tablet or laptop to access the local configuration page.
No cloud dependency
Configuration is hosted on the device itself, so the attraction does not depend on venue internet access or an outside service.
From box to boo
Set up in four steps.
- 1
Wire the effect
Connect the four outputs and trigger inputs in accordance with the product wiring guide and the ratings of the equipment being controlled.
- 2
Join the hotspot
Power up the ST-4 and connect your phone, tablet or computer to the Wi-Fi network created by the controller.
- 3
Configure locally
Open the device interface and define how the controller should respond to each trigger using the available firmware settings.
- 4
Test the scare
Verify each output, check the physical effect and confirm that all attraction safety systems operate independently.
One box. Plenty of trouble.
Designed for practical haunt effects.
01
Pneumatic props
Trigger compatible solenoid valve control circuits for pop-ups, drop panels and sudden movements.
02
Lighting cues
Switch low-voltage lighting or suitable external contactors to reveal, conceal and misdirect.
03
Actor controls
Give performers a simple button or switch input to fire a repeatable effect at the right moment.
04
Interactive scenes
Use compatible sensors or switches to make a room react when a guest enters or completes an action.
!
Control is not safety
Keep emergency stops, guarding and safety interlocks independent.
The ST-4 should operate attraction effects only within its published electrical ratings. It must not replace safety-rated controls, mechanical restraints or a competent risk assessment.
Questions from the workshop
ST-4 FAQ.
These answers reflect the current four-relay product concept.
Does the ST-4 need internet access?
No. It creates a local Wi-Fi hotspot that you connect to directly while configuring the controller.
Does it include audio playback?
No. The current ST-4 is a relay and input controller only. Audio is deliberately not advertised as part of this model.
Can I configure it from a phone?
Yes, provided the phone can connect to the controller’s Wi-Fi hotspot and use the local device interface.
Can the relays switch any load?
No. Every relay has a defined voltage and current rating. High-power, inductive or mains equipment may require correctly rated external control gear. Full ratings will be published with the production manual.
Is it a safety controller?
No. Emergency stops, safety interlocks and protective systems must be separate and appropriate for the attraction.
Bring your next scare to life
Ask about the ST-4.
Tell us about the effect you are building and the devices you need to control. The form opens an email enquiry in your usual mail application.
Product enquiries
OEM and installer discussions
Early customer feedback