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PicoSwitch - Magnetic RC On-Off Switch for batteries with RC plugs

Product Code: PICO-SWITCH-JR
 (27 reviews)

Price: $23.45

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The PicoSwitch is a lightweight magnetic switch and is ideal for RC gliders and DLGs. This device allows the radio control gear to be switched on and off by holding the supplied magnet close to the switch for three seconds. This version has a standard RC (JR) socket at the battery end, making it suitable for most RC receiver batteries. The receiver end is fitted with a standard RC (JR) plug, as used on servos.

If the switch is mounted under fuse skin the magnet can be outside and the switch inside, so the RC can be switched on without removing the access hatch. Careful firmware design ensures that stray magnetic fields cannot toggle the switch incorrectly.

The device defaults to on when first powered up - this safety feature means that if there is a brief voltage drop caused by a bad connection or low battery voltage the device will stay on when the voltage returns. It also means that the model can be flown if the magnet is lost, just unplug and re-plug the receiver battery to switch it on.

The benefits of this magnetic RC on-off switch

  • Clever firmware indicates when the switch is sensing the magnet to give instant feedback.
  • When switched on the LED flashes indicating the RC is now on.
  • The flashes are very brief to keep the switch's energy usage to a minimum.
  • The magnetic switch utilises a Hall Effect Sensor (no mechanical switching parts).
  • Safe and reliable :
  • Default to on - if the battery is disconnected and then reconnected the output will turn on every time.
  • The magnetic switch is programmed to ensure the magnet is over the sensor for 3 seconds without interruption and only then will it toggle the switch state.
  • Extremely resilient to magnetic interference due to the algorithm used.

Switch Installation

When the switch is plugged into the power supply for the first time the output will turn on and the LED will flash.
  • Place the switch as close to the fuselage or wing surface as possible.
  • Use a thin piece of double sided tape to hold the switch in place.
  • To locate the sensor simply sweep over the approximate sensor location area, when the Hall effect device sees the magnet the LED will turn solid on indicating the perfect position.
  • Use a marker pen and mark where the sensor is located.

Magnetic Switch Operation

  • To turn the switch off place the supplied magnet over the sensor and the LED will light up continuously. Hold the magnet in place for 3 seconds without interruption. Tip: count 1, 1000, 2, 2000, 3, 3000.
  • To turn on the RC hold the magnet over the sensor again, keeping it still for three seconds, as above.

Please ensure a full range check of the model is undertaken prior to use. The pack includes the switch and two small neodymium magnets - one needed plus a spare. It does not include the Magnetic Keyfob and Lanyard shown in the related products sidebar. To mount the magnet and make it more visible cut some balsawood to the required size, make a hole for the magnet, and cover it with sticky tape.

PicoSwitch Magnetic RC Switch Specifications
Weight 2.8 g (0.1 oz)
Switch dimensions 15 mm x 8 mm x 4 mm
Overall length inc leads 14 cm
Max continuous current 6 A
Max current for 10s 8A
Supply voltage 3.0V - 8.6V (1S to 2S LiPo, 3 to 5 cells NiMH)
On Vdrop @ 1.3A 130 mV
Off quiescent current 4 µA
Operating temperature -40°C to +80°C

Servo Cable Colour Code
Usage JR Futaba
Battery positive + Red Red
Battery negative - Brown Black
Servo signal S Orange White

Reviews 27  

 Review by:

Pico Switch

An excellent little device. Will fit into the smallest model. I have a couple.

Comment by:

Pico switch

With Neil’s help I have just fitted a pico switch in a OO loco and it works great!

Great help and service from Neil.

 Review by:


use these on all my aerotow models- just so easy. if anything goes wrong they default to ON. no fumbling for hidden switches inside canopies. magic

 Review by:

Very convenient

Used in F5B. Use it without leaving the power harness to switch on after all the preparations for the flight. Only products that can ensure reliability and safety can be used.

 Review by:

Wasabi re-furb

Decided to spruce up my Wasabi. Recently realised the benefits of these switches, so removed the old slider switch, glassed the inside and micro ballooned the hole. I was painting the fuselage anyway, so now looks nice and neat. Switch ultra reliable and Neil's service A1

 Review by:

Very good service and very good products
You can always rely on Hyperflight for useful stuff that does what it say it will do

 Review by:

Excellent units that mean no switches or holes to let water in. All done by magnet/s. Would be good to find a charging system that can be done similarly. J

 Review by:

Great Switch

Great switch, I use it on my model yacht saves removing the cover every time. I just glued it under the carbon fibre hatch. I wish the magnet cam in a holder or on a string. I used red heat shrink to make a tube but I still lose it.

 Review by:

Switch for RC steam yacht

Being an early steam yacht it has traditional rigging to secure masts. The pico switch enables me to switch on electronics without removing the rigging.
Super bit of kit

 Review by:

works just perfect

 Review by:

Simple straightforward what more do you want

 Review by:

Great small magnetic on off switch that fits nice and works well! Mounted in a small glider.

 Review by:

Pico Switch

Perfect for installing in a PSS Hurricane to avoid having an unsightly switch on the ouside of the fuz. Works well.

 Review by:


Very useful for a hidden receiver switch/ works well

 Review by:

pico magnetic switch

I bought this magnetic switch to fit to a model yacht.when i turn up at the club i plug in the battery to the switch then seal down the deck patch .from then on i can switch the receiver on and off with the magnet which is supplied.fantastic unit

 Review by:

Works OK as described

 Review by:


Brilliant service as always form Neil at Hyperflight even across the pond to me in the US. The switch works great and is light and small!

 Review by:


Brilliant service as always form Neil at Hyperflight even across the pond to me in the US.

 Review by:

Great Switches

The best way to turn on and off my F3F gliders once on the slope.
The easy single swipe to turn on and the dright LED can be seen through the fiberglass nose cone.
And the 4 second delay to turn off is an extra safety feature against accidental turn off.
Awesome swithch, l have them in all my glider, bought more than 10.... A1+

 Review by:

RC Glider Power

I have these switches in all of my gliders to ease the issue of power control, l like the easy way they can be mounted in almost any position, remembering to keep them away from the servo’s.
The ease of switching on instantly with just a swipe, but the safety of the “hold for 4 seconds” feature means, no accidental switch off during launches.
Great device......A1+

 Review by:

Magnetic switch

A brilliant device, East to fit and use. I have fitted it to a radio controlled oo gauge locomotive. Works a treat

 Review by:

Perfect little switch

I've been looking for something like this for a long time. Been using door alarm switches for while but they don't stand up to the current draw for long.
Just installed one of these into my Micro Magic sailboat and it works perfectly so far.
No more rusty switch failures!
Should be more of a boon in my Victoria, since I have to tape that hatch shut, and it is a pita to untape and retape.
I ordered one for each of my 3 sailboats. A bit pricey but no moving parts, should last forever. Delivery to Canada was quick, no complaints, a happy customer.

 Review by:

Good replacement or spare.

Bought as a back up due to mine occasionally being faulty. It takes a bit of getting used to but seems to work as it should. I might have found the fault on my old switch and fixed it. More than happy to use this one as a replacement if necessary.

 Review by:

Very neat lightweight switch

Not used in anger yet have only just installed inside a carbon fibre hull but it appears to work very well - you just have to be patient and hold for 3 seconds and not be too hasty to get going. Certainly much better than leaving battery permanently connected or having to remove a hatch covering to disconnect.

 Review by:

small light and handy

small light en easy to use. more than happy

 Review by:

PicoSwitch used on the Elf

I purchased the PicoSwitch with an Elf from HyperFlight.

Excellent service from HyperFlight as it arrived here in Australia in just 5 business days.

This is a great little switch that changes state by passing a magnet near the switch. Flashing light clearly indicates the current state.

Very easy to use and reliable. I did find that it turns on quite easy by just passing the supplied magnet near the switch. Turning off however is a little more tricky and it takes me a few attempts to finally have the power switched off.

 Review by:

PicoSwitch - Magnetic RC On-Off Switch for batter

I tried them today in 2 F3F gliders and they seem to work very well. I like the idea of having to hold the magnet close to the switch for 3 or 4 seconds before it turns off, sure make those accidental swipes harder to make.

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