Pea Soup Smoke Machines
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Concept Colt 4 - Portable Smoke Generators

Robust and portable smoke generators

There are two types of Colt manufactured for Pea Soup that produce different types of smoke; the Colt 3 makes smoke that disperses quickly, the Colt 4 makes long-lasting smoke.

Colts are also available in two versions. The Basic version allows you to operate the unit off-mains power - you can produce a considerable amount of smoke 'off power' using the retained energy within the high mass heat exchanger, allowing you to carry the generator around, making smoke as required, without a trailing electrical lead. After being on mains for around 15 minutes, the Colt will generate large amounts of smoke for around 2 minutes whilst off power. The Remote version Colt comes with a remote control (remote will not work off-power).

Connected to main power, all Colts can operate continuously at full output.

In service with numerous fire authorities world-wide, many NATO forces (including the USN for shipboard training), as well as analytical laboratories, cleanroom specialists and HVAC contractors, the Colt has a reputation for simplicity of operation and reliability.

The use of pressurised smoke fluid canisters reduces the number of moving parts within the machine to just one, resulting in exceptional serviceability and reliability.

The Colt 4 units made for Pea Soup are ideal for when you require extremely dense concentrations of smoke, or extremely large volumes need to be filled with smoke. This is because smoke produced by the Colt 4 is very persistent. The Colt 4 Turbo model generates almost twice the volume of smoke as the standard Colt 4.

The new Colt 4 Twin Turbo is the newest variant, giving twice the output of that of a Colt 4 Turbo. It incorporates a larger, twin helix, precision machined heat exchanger block. This new heat exchanger technology results in twice the smoke output of the Colt 4 Turbo but still only uses 2 x 1100w heaters and is one of the most powerful hand held smoke generators available today.

The Colt 4 Turbo in operation, off power


  • Compact size, robust construction
  • Hand portable
  • Off-power capable
  • Continuous full output (on mains power)
  • Variable output (0 -> maximum)
  • Persistent smoke (Colt 4 / Colt 4 Turbo)
  • Quickly dispersing smoke (Colt 3)
  • Non-toxic, thick, dry, white smoke
  • NATO codified


  • Precision, machined heat exchanger, guaranteed for life
  • Utilises aerosol canisters for safe, convenient operation
  • Available in 'basic' or 'remote control' models
  • Light and portable

Made in Britain

5 year parts warranty.
Lifetime guarantee on heat exchanger.


  • Basic format (with off-power facility)
  • Remote format (both on-board operation, or remote) (Unit cannot be used off-power)
  • Particle size 0.2 - 0.3 micron, mass median diameter - the smallest particle size of any machines we sell.

Remote model is supplied with
5 metre remote control

Available for 240v or 110v
(please specify when ordering)

We ship worldwide
(contact us for shipping price)

General Specification (approx.) Colt 4 Colt 4 Turbo Colt 4 Twin Turbo
Size (cm) (L x W x H) 36 x 14 x 20 36 x 14 x 20 36 x 14 x 20
Weight (kg) 5.5 7 8.5kg
Heat exchanger wattage (W) 1,100 2,200 2,200
Power Supply
(specify when ordering)
208-240V, 50 - 60Hz
208-240V, 50 - 60Hz
208-240V, 50 - 60Hz
(100-120V, 50 - 450Hz* optional) (100-120V, 50 - 60Hz optional) (100-120V, 50 - 60Hz optional)
Warm up time from cold (mins) 5 4 4
Duration of aerosol at maximum output (approx. mins) 14 7.5 4
Smoke output (m3/min @ 1.5m visibility) 0 - 125 0 - 233 0 - 466
Particle size (micron, mass median diameter) 0.2 - 0.3 0.2 - 0.3 0.2 - 0.3
Operation off the mains power supply? Yes (not remote) Yes (not remote) Yes (not remote)

* Only basic versions of the Colt can run up to 450Hz. Remote versions 50-60Hz only.

   Particle size - explained
   Ducting smoke
   Temperature resistance of smoke
   Smoke chemical types
ISO 9001
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The Colt 4 Turbo in use off-power

The Colt is also available in black paint finish upon request for special effects customers.

Colt 4 in standard red finish

Colt 4 in stainless steel finish
COLT 4 - Persistent smoke machine
PSC4B: Colt 4 (1.1kW), Basic (no remote)
PSC4R: Colt 4 (1.1kW) with Remote Control
PSC4TB: Colt 4 Turbo (2.2kW), Basic (no remote)
PSC4TR: Colt 4 Turbo (2.2kW), with Remote Control
PSC4TTB: Colt 4 Twin Turbo (2.2kW), Basic (no remote)
PSC4TTR: Colt 4 Twin Turbo (2.2kW), with Remote Control
Colt 3 - Quick dispersing smoke machine
PSC3B: Colt 3 (1.1kW) Basic
PSC3R: Colt 3 (1.1kW) Remote version
PSC3TB: Colt 3 Turbo (2.2kW), Basic
PSC3TR: Colt 3 Turbo (2.2kW), Remote version
PSC3TTB: Colt 3 Twin Turbo (2.2kW), Basic (no remote)
PSC3TTR: Colt 3 Twin Turbo (2.2kW), with Remote Control

All machines above are available in red finish as standard,
or black for an extra £50, or stainless steel for an extra £120.
Remote control machines above are available with a wireless remote control for an extra £240.

Order online (UK):


  We do ship worldwide - contact us for shipping price if outside UK 


Colt Smoke Fluid & Accessories
Single Colt 4 smoke fluid aerosol (persistent)
for Colt 4 models only
Box of 10 x Colt 4 aerosols (persistent smoke)
for Colt 4 models only
Box of 10 x Colt 3 aerosols (quick dispersing smoke)
for Colt 3 models ONLY

Smoke machine ducting adaptors
Ducting adaptors
(heavy duty 25mm adaptor shown second from left)

25mm neoprene flexible ducting hose


For the Rocket, Dragon, Phantom and Colt smoke machines, available in three diameters:

  • 25mm
  • 50mm
  • 75mm

A steel ducting adaptor (shown left) attaches to the front of the machine to secure the position of the ducting hose inlet allowing smoke to be positioned precisely, in hard to reach places, a distance away from the machine itself or inside containers, fume cupboards, spray booths, etc.

All our ducting hoses are internally lined to be smooth, thereby reducing frictional losses and smoke particle impaction.

When ducting smoke, you are restricting the smoke particles movement in a limited space and so deposition in the hose over time is inevitable with any machine. But by using a Pea Soup smoke machine and this type of hose, deposition is minimised.

PLEASE NOTE: Ducting adaptors not suitable for the Colt TWIN Turbo (dual output nozzle) models.

25mm silicon lined flexible ducting hose

25mm Ducting
25mm diameter heavy duty ducting adaptor

Shown in ducting adaptors photo above, second from right
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25mm diameter ducting adaptor (simple)
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25mm silicon lined flexible ducting x 2 metre length
Stays rigid - ideal for clearance and air flow tests use as a 'wand'. Silicon lined to resist heat from the smoke at this small diameter.

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25mm silicon lined flexible ducting x 4 metre length
As above, but a 4 metre length

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25mm neoprene lined flexible ducting x 2 metre length
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25mm neoprene lined flexible ducting x 4 metre length
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50mm and 75mm Reinforced Ducting

  • 100% PVC film wall with galvanised steel protective binding spiral.
  • -20C to +80C temperature range
  • Compressible 1:6
  • 0.4 kg weight per metre (50mm), 0.5kg weight per metre (75mm)
  • Bend radius: 30mm for 50mm dia, 45mm for 75mm dia
  • Each 50mm and 75mm hose comes complete with a stepped hose clip included allowing secure attachment to ducting adaptor.
    Spare clips are available.

NB Hose clips (shown below) included with 75mm and 50mm hoses keep the hose attached to the ducting adaptor which is ordered separately.

Ducting hose clips for 50mm and 75mm ducting only
50mm Ducting
50mm diameter ducting adaptor
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50mm diameter reinforced flexible ducting x 10 metre length, with hose clip (ducting adaptor required)
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75mm Ducting
75mm diameter ducting adaptor
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75mm diameter reinforced flexible ducting x 10 metre length, with hose clip (ducting adaptor required)
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Colt 4 doing a low output 'puff' of smoke with 25mm neoprene ducting hose
Heavy Duty Transport Case for Colt 4 smoke machine.
with custom foam cut-out to fit the Colt 4 machine, power lead plus 2 aerosols. Colour: orange.
IP67 certified for military, broadcast, marine, photography, industrial use. Air tight, corrosion proof, water tight, sand and dust proof. Built-in pressure valve. Can be padlocked. Photo for illustration only.
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Premium Peli Case for COLT smoke machine.
Will fit machine, power & remote lead plus 2 aerosols. For military, broadcast, marine, photography, industrial, use. Air tight, corrosion proof, crush proof, designed for military spec, water tight, shock proof, sand and dust proof, temperature resistant -33C to +90C.

Premium Case PDF


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Using the Colt with 25mm silicon lined ducting as a 'wand' for air flow tracing applications

Colt 4 Turbo in off-power action (arm not supplied)

Colt 4 Turbo Outdoors on a windy day

Colt model showing 5 metre wired remote control and wireless remote control fitted

Use the Colt 3 model for quick dispersing smoke / steam effects - watch video


The New Mini Colt 4

A more compact design than the traditional Colt Basic above, available as a 1.1kW basic version.

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Related products:
Name Description
Ducting Adaptors and Hose Ducting adaptor plates and hose accessories specifically designed for Pea Soup smoke machines.
Hand Portable Smoke Machine The Rocket is the market leading compact portable smoke generator. Robust, powerful and reliable.
2.2kW High Output Smoke Machine The Dragon is our highest quality water-based smoke generator offering continuous 100% high output and uncompromising component reliability.
Oil Based Smoke Generators The ultimate choice for larger applications whose super dense smoke has a very high temperature tolerance and persistence.

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