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PRO ST-III Plus 2.4GHz TTL Flash Trigger with High-Speed Sync & Bluetooth (X2T)

SKU: M-061001


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The PIXAPRO ST-III Plus 2.4GHz flash trigger is the next evolution of the ST-III 2.4GHz TTL flash trigger.

Five Dedicated Groups

The PIXAPRO ST-III Plus now features five dedicated group buttons, enabling you to quickly and easily select the flash group that you desire, and adjust the power of that group, without having to scroll to find the group you are looking for.

Easy To Use

The ST-III + also features a re-designed scroll wheel, now placed on the left-hand side of the trigger for improved accessibility.

100m Transmission Range 

The PIXAPRO PRO ST-III + trigger has a transmission range of approximately 100m in an open area, and since it uses 2.4GHz radio waves as opposed to Infra-red to communicate, so you don’t need direct line of sight.

Advanced Features

There is also a “Scan for Best Channel” function, which scans the airwaves to help identify the best channel(s) to use that will give you the least amount of interference.

5 Individual Groups Available 

The PIXAPRO PRO ST-III + allows up to 5 Groups to be individually set to either TTL, Manual, or Off.

Option To Mix TTL & Manual

You can also mix TTL and Manual Groups if needed, which makes the ST-III + system very versatile.

32 Seperate Channels

The ST-II+I system also has 32 separate channels, which enable you to use your ST-III trigger system in the vicinity of other photographers, without fear of accidentally triggering each other’s lights.

TTL, HSS & Pre-sync 

The PIXAPRO PRO ST-III + supports TTL, HSS (High-Speed Sync) and even has HSS Pre-sync Timing Adjustment feature, which is great for those times where you need to increase your shutter-speed beyond your camera’s sync speed.

Bluetooth Feature 

The PIXAPRO PRO ST-III + has a Bluetooth feature, which enables you to use the trigger in conjunction with an app, allowing you to control your flashes from a smartphone or tablet.

PC Sync Cable & USB Type C Port

It also features a PC sync cable socket enabling it to be used to trigger studio strobes, as well as a USB Type C port to enable you to update the ST-III +’s Firmware as new technologies become available.

The perfect solution for the busy photographer who requires a reliable TTL radio trigger system. Available for Canon, Nikon, Sony, Olympus, Panasonic, Fujifilm and now Pentax.

Trigger Compatibility
Brand Model Pixapro Products Comments
Canon EOS R5 ST-III, ST-III+, ST-IV & All Speedlites
  1. If not compatible with High-Speed Sync or TTL. please update the Firmware on your trigger, and update your camera to Firmware Version 1.5.
Nikon D780 ST-III, ST-III+, ST-IV, Li-ion580II N, GIO 1 N
  1. Images will have bright edges when taking photos at shutter speeds above 1/2000s. Nikon SB910 speedlite also has the same issue.
  2. Other On-Camera speedlites not compatible with TTL.
Nikon Z7 II ST-III, ST-III+, ST-IV & All Speedlites Not Compatible with AF Assist-beam. Same is true with Nikon branded speedlites
Pentax K-3 ST-III, ST-III+, ST-IV & All Speedlites All functions can be used as normal


Please Note: PiXAPRO Flash and Triggering Systems are fully compatible with Godox 2.4GHz Triggers, which will allow you to mix both Godox and PiXAPRO Equipment together without issue.


  • New Scan for Best Channel feature
  • Built-in Bluetooth, for use with a Smartphone app.
  • Dedicated Group Buttons
  • New Dot-Matrix LCD Display
  • Updated Hot-shoe with Switch-Lock mechanism
  • Large 100m Transmission Range
  • Supports up to 5 Groups and has 32 different channels
  • Supports High Speed Sync up to 1/8000th sec.
  • USB-C port for Firmware updates
  • Powered by 2x AA batteries

What’s In the Box

  • 1x PRO ST-III+ Transmitter


TTL FlashTTL Auto flash
Power Supply2x AA Batteries
Manual Flash TriggeringYes
High-Speed Sync SupportYes
Bluetooth SupportYes
Working Range100m (In an Open Area)
Available Groups5


Delivery & Returns

UK Delivery Rates

Free UK Standard delivery on orders over £150.00*

Order Date (if received before 3pm) Cost Latest Expected Delivery Date
UK Saver Delivery (Orders over £150*) FREE 2-3 Days
UK Saver Delivery £5.00 2-3 Days
UK Next Working Day £8.00 Next Working Day
UK Before 2pm Next Working Day £18.00 Before 2pm Next Working Day
UK Saturday Delivery £30.00 Saturday

View a full breakdown


EssentialPhoto is committed to the provision of quality and reliable products and outstanding customer service. Buyers are entitled to cancel the order and return the goods within 28 working days for a full refund of the purchase price of the goods.

Read our full Returns Policy

International Delivery Rates

We are able to ship from our UK based warehouses to many countries around the world. Click below to check shipping rates to your country..

Check your country

International Delivery Rates

We are able to ship from our UK based warehouses to many countries around the world. Click below to check shipping rates to your country...

Price-Match Guarantee

Our new price match policy guarantees you the same price as other retailers so you’re alway getting the best deal possible...

How to make a claim

  1. Send us a link for verification
    If you manage to find one of our price matched products cheaper elsewhere, send us the link for verification. you can do this by using live chat, email, or by calling us on 0121 552 3113
  2. Recieve a discount
    If we confirm & verify a legitimate product is cheaper elsewhere we’ll provide you with a dicount code for the difference that you can use at checkout.

Terms & Conditons

The comparison needs to meet the following:

  1. We will match our competitor’s current store or website price - this will apply to a UK based company only, the stock location must be based in the UK (no grey imports).
  2. The competitor’s item must be brand new, identical to ours, and offered on the same terms.
  3. Both PiXAPRO and the competitor must have the product in stock for delivery.
  4. We must be able to verify the competitor’s price and stock position.
  5. We will only match the price of an item - this does not include delivery charges

Try Before You Buy

Our ‘Try Before You Buy’ scheme is available at a growing number of participating photography studios around the country. Availability of PiXAPRO products, opening times, and cost of studio hire are studio dependent.

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