could I use this device to measure magnetic fields in my home? I have some concern regarding the power lines nearby.

There's nothing that will stop you from using this to measure magnetic fields in your house. However, I'm certain the magnetic fields from nearby power lines are nothing to worry about unless they are literally running through your home. My suspicion is that you'll find the magnetic fields produced by essentially any electronic device in your house will be stronger

Will it tell you where North and South poles are?

Yes it indicates N or S when measuring

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Digital Tesla Meter Gaussmeter with 0-200mT/0-2000mT Range Gauss Meter with Accuracy ±2% (0~1000mT)/±5% (1000~2400mT) Magnetic Field Tester with Backlight for DC Magnetic Fields (Model TES11A)

Digital Tesla Meter Gaussmeter with 0-200mT/0-2000mT Range Gauss Meter with Accuracy ±2% (0~1000mT)/±5% (1000~2400mT) Magnetic Field Tester with Backlight for DC Magnetic Fields (Model TES11A)

Product ID: 141942618

Details

Brand
AMTAST
Color
Standard
Power Source
Battery
Style
Modern
Upper Temperature Rating
50 Degrees

💡Backlit 5-digit digital display

📏0-2000mT auto-range precision

🔋50+ hours battery life

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COP 389697

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Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Measure Magnetic Mastery Anywhere, Anytime!

ALL DAY POWER - Micro-power consumption extends battery life beyond 50 hours—stay powered through your longest projects.
EFFORTLESS VERSATILITY - Auto-ranging 0-200mT/0-2000mT scales and selectable transverse/axial probes adapt to any magnetic testing scenario.
USER FRIENDLY INNOVATION - Backlit digital readout and magnetic polarity judgment simplify complex measurements for professionals on the go.
PRECISION MEETS PORTABILITY - Handheld design with ±2% accuracy up to 1000mT ensures reliable field measurements anywhere.
INDUSTRIAL GRADE RELIABILITY - Built for demanding environments, ideal for motors, speakers, magnetic separation, and residual field detection.

The AMTAST TES11A Digital Tesla Meter is a compact, handheld gaussmeter designed for precise DC magnetic field measurement with auto-ranging up to 2000mT and accuracy of ±2% (0-1000mT). Featuring a backlit 5-digit display, selectable probes, and an innovative low-power design, it delivers over 50 hours of continuous use. Perfect for industrial maintenance, magnetic material testing, and on-site professionals seeking reliable, portable magnetic field diagnostics.

Specifications

ASIN	B07SFM8TZ6
Best Sellers Rank	#208,617 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #120 in EMF Meters
Brand Name	AMTAST
Color	Standard Version
Customer Reviews	4.2 4.2 out of 5 stars (52)
Included Components	1Pc gauss meter
Manufacturer	AMTAST
Measurement Type	Gauss Meter
Model	TES11A
Part Number	TES11A
Power Source	Battery Powered
Style Name	Modern
UPC	792855829683
Upper Temperature Rating	50 Degrees Celsius

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