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Description
SEW 4126NA Loop Impedance TesterOverview The SEW 4126NA is an auto ranging loop impedance tester designed for identifying faults and analysing electrical networks. With easy one button operation and high accuracy, this tester is ideal for professionals in the field. If you need help deciding if this product is right for you, contact us at 07 3271 4588. Features: Auto ranging with one push button operation 0. 03 2000 auto ranging Very low power consumption Microprocessor controlled
Overview
The SEW 4126NA is an auto-ranging loop impedance tester designed for identifying faults and analysing electrical networks. With easy one-button operation and high accuracy, this tester is ideal for professionals in the field. If you need help deciding if this product is right for you, contact us at 07 3271 4588.
Features:
- Auto-ranging with one push-button operation
- 0.03 - 2000Ω auto-ranging
- Very low power consumption
- Microprocessor-controlled
- Accuracy better than 3% (0.05-50Ω)
- Safety Standard: IEC/EN 61010-1 CAT III 300V
- Wiring integrity check (display + LEDs)
- Over-temperature protection with indication
- Stores previous readings
- 2-line x 16-character LCD
- Compact and easy-to-carry case
Measures:
- L-E and L-N AC voltages
- L-E and L-N loop impedance
- Prospective short circuits (L-E and L-N)
- Earth spike
- Line and neutral impedances
Specifications:
- Loops / Earth / Wires: 0.03-2000Ω auto-ranging
- Prospective Short Circuit: 0-6KA at 230V AC
- Operating Voltage: 50-275V AC (50Hz)
- Best Performance Voltage: 230V AC ±20%, Max. 10A
- Operating Temperature: 0°C - 40°C
- Operating Humidity: 20°C - 60°C
- Voltage Accuracy: ±1% (210~250V), ±3% otherwise
-
Impedance Accuracy:
- ±2% (0.05~50Ω)
- ±3% (500Ω), ±15% (above 500Ω)
- Dimensions: 250(L) x 190(W) x 110(D) mm
- Weight: Approx. 1500g (battery included)
- Power Source: 1.5V (AA) x 8 batteries
Included Accessories:
- Test leads (AL-34)
- Instruction manual
- Shoulder belt
- Batteries
If you need help deciding if this product is right for you, contact us at 07 3271 4588.
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
4.6 ★★★★★
Based on 1421 reviews
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Product Reviews
★★★★★ 2
Combersom
Cumbersome, does not hold 3nough water
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Reviewed in the United States on May 25, 2026
★★★★★ 3
Mixed Results
These strips fit comfortably and don’t slide around, which I appreciated. They are gentle on my gums and enamel, and I noticed a slight improvement in brightness after consistent use. That said, they aren’t as strong as some other whitening strips on the market, so if you’re looking for dramatic results you may be underwhelmed. Good for subtle whitening.
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Reviewed in the United States on October 2, 2025
★★★★★ 5
Does work well for removing minor stains
This product is probably best for removing minor staining - things like coffee, tea, red wine. I don't think it would work for longer-term stains that accumulate with age - the strips are not powerful enough for that.
Very easy to use: just apply and leave on for half an hour or until you can feel that they are no longer well-attached. The "cleaning" process starts immediately - you can see the bubbles form. I am a tea drinker, and I notice immediate effect after putting these on. Don't expect miracles, but they will help with fresh stains for sure.
For me, they do not increase the sensitivity, but my teeth are generally not sensitive. But they are peroxide based, so the possibility is always there that it could have that side effect.
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Reviewed in the United States on November 1, 2025
★★★★★ 4
Actually Works! Noticeable Results Quickly
THESE WORK GREAT! I’m a smoker and occasional coffee drinker, and these strips got my teeth from a 12 to a 9 in just a week—I actually noticed results right away. I don’t use them every day, but even with sporadic use, the difference is clear.
A couple of downsides: a few strips didn’t stick perfectly, but most stayed in place well.
The upsides: I have very sensitive teeth (I can’t even drink ice-cold water easily), and even when I left the strips on longer than recommended, I had very little to no sensitivity. Another bonus is that they’re stretchy! I’ve tried other well-known brands, and their strips had no stretch and often left my back teeth exposed.
Overall, these are effective, comfortable, and easy to use—I definitely recommend them!
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Reviewed in the United States on September 27, 2025
★★★★★ 5
Finally, whitening strips that work for me
I normally have not been able to use whitening strips due my teeth and gums being sensitive, but that hasn't been a problem with these pleasant-tasting strips. They really stick well on the teeth, takes a little effort to get them off in fact but that's not a complaint. Of course the main thing is that they whiten the teeth and while my teeth are probably a little harder to whiten due to my copious use of coffee and tea I can say that these have definitely whitened my teeth a couple shades since using them. Would definitely use again.
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Reviewed in the United States on October 25, 2025
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