Price: £49.99
(as of Sep 24, 2025 13:38:35 UTC – Details)
Product Description
The Dolphin DPS400 is a 4 recess mounting sensor system manufactured to fit a wide range of cars and look like original fit equipment. This kit has 4 sensors with a buzzer. The buzzer gives audible bleeps with increasing frequency as you get closer to an obstacle.
The unit is activated when reverse gear is selected. When the vehicle is less than 1.5 metres from the obstruction the audible alert will emit intermittent bleeps. As the vehicle gets closer to the obstruction the frequency of the bleeps increases. At 30 centimetres from the obstruction the bleeps become a continuous solid tone, warning you that you should stop the car.
The sensors are on cables just over 2m long and should cover the width of most vehicles but we do have extension leads if needed. You mount the brainbox in the rear of the car, traditionally in a side panel behind one of the rear light clusters, so the sensor cables do not have to run to the front of the car. You connect the brainbox up to the reversing light for its power supply. The buzzer is on a 2m cable length designed to be mounted in the boot area.
Available in 32 Colours
There are 32 coloured sensors in the range, the colours are baked on so will not crack as can happen with retro spraying. The sensors require a 21mm hole (cutter supplied in box) and have a 25mm outerface leaving a 2mm overlap.
Adjustable Brainbox
Our new adjustable brainbox means that you have full control over the detecting distance that your parking sensors have from your car. This is particularly useful for cars with low bumpers or bumpers that are angled at the ground. It is not normally necessary to play with this setting but gives some flexibility with fitting if needed.
Swap Socket Feature
The kit has a watertight swap socket feature based 6 inches from the sensor heads, it makes installation quicker and easier. Also should you ever have a problem with faulty sensors or accident damage in the future it facilitates easy replacement without having to rewire from scratch.
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Customer Reviews
4.4 out of 5 stars 687
4.3 out of 5 stars 86
4.1 out of 5 stars 13
4.3 out of 5 stars 91
3.5 out of 5 stars 17
4.4 out of 5 stars 100
Price
£49.99£49.99 £49.99£49.99
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£49.99£49.99
Separate Buzzer
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Dash Display (integrated buzzer)
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Rear Roof Display
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Swap Sockets
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Colours
32 32 32 32 32 9
Sensor Diameter
25mm 25mm 25mm 25mm 25mm 20mm
Kit Type
Rear Kit Rear Kit Rear Kit Front Kit Front Kit Rear Kit
Adjustable Sensitivity
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4 Sensors In Your Colour Choice From A Range of 32 Colours
Swap Socket Wiring For Ease Of Fitting & Replacement If Required
Adjustable Sensitivity Control On The Brain Box
21mm Hole Cutter And English Instruction Manual Included
Lifetime Warranty On The Sensors – Auto Express Award Winning
Customers say
Customers find the parking sensors easy to install, with one mentioning they can be installed without removing the bumper, and they work well for parking assistance. The product receives positive feedback for its quality, value for money, and perfect color matching. However, the loudness receives mixed reviews – while some find the beeper loud enough to hear, others say it’s not loud enough. The sensors’ performance also gets mixed reactions, with some finding them good while others report issues with them not picking up objects.