Pay in installments of $29.62 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Helmholtz Coils Single and PairHelmholtz Coils are large air wound coils that can be connected to a power source and are aligned on the same axis for measuring and studying magnetic fields. They are typically paired with a magnetic measuring probe and a constant current power source for optimal results. This single or paired set of Helmholtz Coils is constructed from polycarbonate, offering both high temperature tolerance and physical durability. Designed for magnetism research,
Helmholtz Coils are large air-wound coils that can be connected to a power source and are aligned on the same axis for measuring and studying magnetic fields. They are typically paired with a magnetic measuring probe and a constant current power source for optimal results.
This single or paired set of Helmholtz Coils is constructed from polycarbonate, offering both high temperature tolerance and physical durability. Designed for magnetism research, the large air coil is equipped with a sturdy plastic base, allowing it to stand vertically on a table. These coils are commonly used in pairs for a variety of applications.
Check below for large spare coils, air wound, with foot.
Kit Includes:
- 2 x Large coil, with foot, 400 turns, 4mm socket head spin free terminals
- 1 x Rule, metric, 500mm long, for setting distances between coils
Product Specifications (Helmholtz Coils Pair)
| Product Code: | SE.EM1915-001 |
| Weight: | 0.84 kg (set of 2x coils and the scale) |
| Ave Coil Dia: | 150mm |
| ID x OD: | 115mm x 163mm |
| No. of Turns: | 400 per coil |
| Max Current: | 1 amp |
| Coil Resistance: | 20ohm when cold / 25ohm when warm |
| Power Supply: | Preferably a constant current supply, adjustable from 0-1 amp; max voltage is 26 volts |
| Instruction Sheet: | See Here |
Product Specifications for Spare Large Air Coil
| Product Code | Turns | Max Cur. | Resistance | Max. Voltage | Weight | Manual |
| SE.EM1915-020 | 50 | 1amp | 8.2 ohms | 8V AC/DC | 0.39kg | See Here |
| SE.EM1915-030 | 250 | 1amp | 20 ohms | 20V AC/DC | 0.39kg | See Here |
| SE.EM1915-040 | 400 | 2amps | 0.7 ohms | 1.4V AC/DC | 0.25kg | See Here |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 24 reviews
Sort
Product Reviews
★★★★★ 5
Versatile and Sturdy Storage Solution
Size: 2.5" & 4" - 4 Pack, Style: Open Hooks, Size: 2.5" & 4" - 4 Pack, Style: Open Hooks
The GATOR MAGNETICS Open Storage Hook has been a great (pricey) solution for adding hooks that are strong and useful. Its simple yet robust design makes it incredibly versatile for various uses around the house.
The hook feels sturdy and durable, capable of holding a surprising amount of weight without bending or warping. Installation is as easy as blinking your eyes; the really strong magnets allow for easy attachment to any magnetic surface, and the hook remains securely in place.
I've used it for hanging lights and bags in my office and bedroom, providing a neat and accessible storage solution in any setting.
The open design ensures quick access to items without the hassle of removing them from a closed loop, which is a fantastic convenience. The magnet seems to be protected well enough with a rubber surface so that I don't have to worry about damaging my tables that I have attached these hooks.
In terms of value for money, this storage hook is pricey but no competition that I've seen with the same level of durability and convenience. I'm impressed by its performance and versatility, making it a must-have for anyone looking to organize their space efficiently.
Pros:
Sturdy and durable build quality
Easy magnetic installation on metal surfaces
Versatile usage for multiple items
Convenient open design for quick access
Doesn't damage surfaces
Cons:
None that I've encountered so far! (Maybe price?)
Overall, I highly recommend the GATOR MAGNETICS Open Storage Hook for its durability, versatility, and exceptional functionality. It's a small investment that brings significant organization and efficiency to any space.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 21, 2023
★★★★★ 5
Amazingly strong and versatile
Size: 2.5" & 4" - 4 Pack, Style: Open Hooks
I saw these advertised on Instagram and immediately purchased a 4 pack. I really wanted them to work but after trying them on 4-5 different steel surfaces I couldn't'[t get any of them to stick well or hold anything heavier than a wet towel. Maybe a bad batch? A shame.
The company took the time to reach out to me after seeing my first review where the hooks wound stick to metal poles in my studio. I definitely was not expecting them to reach out to address my issues with the hooks I purchased and returned. After trying the new replacement hooks out I now could not be more impressed! They are strong, well made and easy to use. The hooks and the magnetic baskets are phenomenal and I highly recommend them. I did a test with the hooks, which held a 75 lb weight with no issues on the side of a craftsman tool box! It seems that any early product issues are fixed. The customer service is fantastic and they really took the time to address the issues and keep their customers coming back happy. Well done! Gator Magnetics is definitely a class act in my book!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2024
★★★★★ 5
Easy to use!
These work great for a metal workshop! Holds up my 6ft ladder and pressure washer hose with ease. Definitely recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 4
25 lb hanger doesn’t hold my Echo trimmer
Size: 4" - Red, Style: Open Hooks, Size: 4" - Red, Style: Open Hooks
Purchased the holders for my Echo trimmer and hedger but the tines are not long enough to hold the Echos. A picture in the description shows a gas powered unit hanging which is why I bought the hangers. Buy the larger 45 lb hanger for trimmers. Nice hook but I’ll probably send them back if i can’t find a use for them soon.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025
★★★★★ 5
Handy
Size: 4" - Black, Style: Open Hooks
I use an ocean container for storage and have some things that need to be hanging. These are perfect for any place you are unable to drive nails. I bought the stronger ones and have had no problems. Ordered more after trying them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
recommand products
Square Ottoman with Lift Off Top - Gray Faux Leather
95.98
The Perfect Puree Ready-To-Use Tamarind Puree (30 OZ, 6 Per Case)
186.00
Udi's Gluten Millet-Chia Seed Bread, 14.2 oz., Pack of 8
94.42
Simply Original Strawberry Shortcake, 19 Ounce - 12 per case.
198.04
Round Storage Ottoman - Teal Tweed
99.65