SMS Twin Fan Controller MK2 4.5A
SMS Twin Fan Controller MK2 7A
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SMS Twin Fan Controller MK2 4.5ASMS Twin Fan Controller MK2 7A

Description

The SMSCOM Twin Fan Controller MK2 runs your extraction and intake fans together. Instead of jumping from idle to full speed when it gets hot, it calculates the exact running speed your fans need to hold the temperature you set. The result is tighter temperature control, quieter fans and negative pressure held in the room.

Key features

  • Controls extraction and intake fans from one unit
  • Calculates the exact fan speed needed, not just on and off
  • Keeps negative pressure in the room
  • Plug in your fans, set the temperature, done
  • Add the SMS MK2 Twin slave to daisy chain more fans from the same controller

Sizes available

  • 4.5A: 1.04kg, 24 x 20.5 x 12.5cm
  • 7A: 1.08kg, 23 x 20 x 12.5cm

Pick the size that covers the combined running current of your fans. For bigger rooms with heavier fans, see the SMS Hybrid Pro MK2. For one fan, the SMS Smart Controller is enough.

FAQs

Can I add more fans later?
Yes. The SMS MK2 Twin slave daisy chains to this controller for more intake and extraction fans.

Which size do I need?
Add up the running current of the fans you will connect and choose the size that covers it. Ask us if you are not sure.

See all fan speed controllers, our extractor fans and carbon filters.

Available for Click & Collect from our West Bromwich store or UK delivery. Need advice? Call us on 0121 553 7872, WhatsApp our experts or pop in.

Explore the range

See all Fans & Filters (50)

Not sure which one is right for your setup? Message us on WhatsApp or call 0121 553 7872.

Delivery, returns and FAQs

Will my order arrive in plain packaging?

Yes. Every order is sent in plain, unbranded packaging as standard.

How quickly will my order arrive?

Order standard size items by 12pm on a working day and choose Next working day at checkout, and your order will be with you the next working day. Standard delivery takes 2 to 3 working days.

Bulky items such as grow tents, large fans and 50L bags of soil go by courier in 2 to 3 working days, or on a pallet for very heavy orders. Next day is not available for these, and if your basket includes a bulky item the whole order travels with it.

UK delivery is free on orders of £94.99 or more, except for bulky items. See our delivery page for full prices.

Can I collect from the shop?

Yes. Choose Click & Collect at checkout and pick up for free from our shop at Unit 2 Black Lake, West Bromwich, B70 0PJ. Orders are ready within 1 hour.

Can I return an item?

You have 14 days from receiving your order to tell us you want to cancel, then a further 14 days to send it back. Items need to be unopened and in a resaleable condition.

If you change your mind, the return postage is paid by you. If something arrives faulty or damaged, send us photos within 48 hours and we will cover the cost of putting it right. Full details are in our refund policy.

Do you price match?

Yes. If you find the SMS Twin Fan Controller MK2 cheaper at another UK retailer, use the Price Match button on this page. We usually reply within one business day.

Need help choosing?

Speak to our team. Call us on 0121 553 7872, message us on WhatsApp, or visit the shop in West Bromwich.

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