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 Rated 4.8 Excellent - Trusted By 17,000+

VoltSage ™

$139.99
$139.99
SAVE Liquid error (snippets/price line 116): Computation results in '-Infinity'% Sold out
 

check_circle Catch hidden vampire loads down to 1 watt

check_circle Protect your electronics with a 3680W overload alert

check_circle Keep your energy history safe, even unplugged

check_circle Handle heavy-duty appliances safely up to 230V, 19A

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Under-Desk Cable Management Kit
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VoltSage was hands-down the single best first investment for my backup power setup. I finally know exactly how much cyclical load my fridge and freezer pull per day, which made planning my battery bank so much easier.

Verified Buyer - Sarah Mitchell

  • Plug VoltSage into any outlet, then connect your appliance directly to the meter.
  • Press the function button to cycle through voltage, amperage, wattage, and running cost.
  • Enter your local utility rate once to unlock real-time cost tracking for every device you test.

  • VoltSage Digital Energy Meter (Selectable Plug)
  • Quick-Start User Manual

We offer free shipping for all orders. Once your item/s is dispatched,
the estimated delivery time is:

- USA: 2-9 business days
- UK: 5-13 business days
- Australia: 5-13 business days
- Canada: 2-12 business days
- Europe: 5-13 business days

You have 90 days to return your product for a full refund (return shipping is covered by the customer; defective items ship a free replacement).

✓ Official Authorized Retailer

This product is not available on Amazon or eBay. You are purchasing directly from the only authorized seller — which means full warranty, verified authenticity, and dedicated customer support. Beware of counterfeit listings on third-party marketplaces.

VoltSage

VoltSage

 4.8/5
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  • Over 17,000 recommend VoltSage

Why Homeowners Trust VoltSage With Every Outlet

insights

Factory-Calibrated Accuracy

VoltSage arrives factory-calibrated and reads down to 1 watt, so no vampire load slips past unnoticed.

warning

Instant Overload Protection

The moment a connected device pulls past 3680 watts, VoltSage flashes a warning so you can unplug before it strains your wiring.

VoltSage
visibility

Bright, High-Contrast Display

The high-contrast display reads clearly from any angle, in bright rooms or dim basements, so you never have to squint at your numbers.

calculate

See What Every Appliance Costs

Enter your local utility rate and instantly see exactly what each appliance costs you to run, so you can budget with confidence.

What our 17,000+ Customers say

Based On Real and Honest Experiences

Sarah Mitchell

VoltSage was hands-down the single best first investment for my backup power setup. I finally know exactly how much cyclical load my fridge and freezer pull per day, which made planning my battery bank so much easier.

Sarah MitchellVerified Buyer
David Coleman

I hooked VoltSage up to my DIY power supply project with a few spade lugs, and it just works. The display is bright and easy to read, even in my dim garage — I'd buy it again.

David ColemanVerified Buyer
Elena Marquez

I use VoltSage to keep an eye on my fence charger, and unlike other meters I've tried, the reading stays steady between pulses instead of flashing or going blank. It's been solid since day one, and I'm genuinely happy with the purchase.

Elena MarquezVerified Buyer

Frequently Asked Questions

verified +347 experts reviewed it as the best choice in 2026
Q1 How do I turn the kWh reading into an actual monthly cost?
Enter your utility rate once ($/kWh, found on your bill), and VoltSage multiplies it by the kWh it tracks to show your running cost in real time — no separate math or spreadsheet needed.
Q2 Can it detect small loads like phone chargers?
Yes! VoltSage picks up power draws as low as 1 watt, so you can spot hidden vampire loads from chargers, routers, and other always-on electronics around your home.
Q3 Can I use VoltSage on 220V or 240V appliances like dryers or ovens?
VoltSage is built for standard 230V outlets up to 19 amps, the everyday circuit most home electronics use. High-draw dryers and ovens on dedicated circuits often exceed that limit, so pair VoltSage with smaller appliances instead.
Q4 What happens to my data if I unplug the device?
Nothing is lost. VoltSage's built-in rechargeable battery keeps your settings and energy history safe even when it's disconnected from the wall.
Q5 Can I read the display easily in low light?
Absolutely. The high-contrast LCD is designed for clear visibility from multiple angles, whether the room is bright or dim.
Q6 What's the maximum watts or amps VoltSage can measure safely?
VoltSage safely measures and alerts up to 3680 watts (16 amps) per outlet — enough headroom for lamps, fridges, power tools, and most household electronics before it flags an overload.
Q7 Is it safe to leave VoltSage plugged in 24/7?
Yes. VoltSage is designed to stay connected around the clock, which is exactly how you catch cyclical loads like a refrigerator's true daily cost. It arrives factory-calibrated and holds up to continuous, everyday use.
Q8 Does VoltSage work with GFCI outlets in bathrooms or garages?
Yes. VoltSage plugs into any standard grounded outlet, including GFCI-protected ones in bathrooms, garages, and kitchens, without tripping a properly working GFCI.
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