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Basshead Garage

Electric Circuit Testing Device - Wattmeter BHG-WM, Measure Wattage, Voltage, Current, PF up to 20,000+ Watts, 0-150 A Rms, 15-100 Hz, 1.3 OLED Display

Based on 59 reviews
Condition: New
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$149.94
Save $49.86 was $199.80

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Nov 1
Order within 15 hours and 3 minutes

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At a glance

Condition
New
Color
Black
Min. Operating Voltage
15 V AC
Specification Met
Nist Traceable, Ce Marked
Part Number
BHG-WM
Works with
Car stereos, head units, car amplifiers

Features 5

  • Measure Phase Difference between Voltage and Current into reactive loads (PF)
  • Measure Max Amplifier Output with PEAK mode.
  • Wattage & Impedance Display
  • Voltage & Current Display

Description

Basshead Garage Wattmeter - Measure Wattage / Impedance / Voltage BHG-WMThis listing includes:(1) BHG Wattmeter(1) 150A Current Transformer(1) 3.81mm 3-Pin Connector(2) 3.81mm 2-Pin ConnectorsIntroducing the Wattmeter by BASSHEAD Garage. This device accurately measures true amplifier power output (W), apparent power (VA), and the phase difference between voltage and current into reactive loads (PF). Capable of measuring AC volts (V), AC current (A), and maximum amplifier output in PEAK mode, this Wattmeter provides comprehensive insights into your audio system’s performance.Features:Measure True Amplifier Power output (W)Measure Apparent Power (VA)Measure Phase Difference between Voltage and Current into reactive loads (PF)Measure AC Volts (V)Measure AC Current (A)Measure Max Amplifier Output with PEAK mode.Display Modes:Wattage & ImpedanceVoltage & CurrentApparent Power & Power FactorSpecifications:AC Voltmeter: 0 - 200 V RmsAC Ammeter: 0 - 150 A RmsPower Factor: 0.50 - 1.00Max Wattage: 20,000+ WattsFrequency range: 15 - 100 HzDisplay: 1.3" OLED MonochromeConnectors: 3.81 mm Plug connectorsCase material: PETG PlasticDimensions:Height: 1.6"Width: 2.75"Depth: 1"Wiring:+ Battery Positive- Battery GroundR - Remote (Head Unit)V - Connect to Car Amplifier speaker output + & -C - Connect to the Current Transformer that goes around the positive or negative speaker wire.

Specs 13

Brand Basshead Garage
Color Black
Min. Operating Voltage 15 V AC
Specification Met Nist Traceable, Ce Marked
Unit Count 1 Count
Minimum Operating Voltage 15 V AC
Maximum Alternating Current 150 A
Brand Name Basshead Garage

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

Want to know your watts? This is what you need
The coolest testing equipment I own. It's a toss up between this and an SPL meter. But I absolutely love both of them. YouTube has a few really good videos on how to install. Don't try with the big Jeff video is confused me
Reviewed in the United States on September 18, 2026 by carolynn dougherty
Works great!
Nice addition to my car audio system. Liked it so much I purchased another for my other amp.
Reviewed in the United States on June 6, 2026 by Kenny Van Horne
Accuracy is on par with AMM-1
Works good and as advertised.
Reviewed in the United States on June 28, 2026 by Amazon Customer
No instruction waste of money
They dont give u a single instruction manual or anything just a couple cubes and not even a good luck. Had a aduio guy try install it by the manual we had to look up and it worked for a second then failed completely showing less then 10% of what is should and everything looks right so idk what the problem is. Like for 100$ u cant even put a cheap ass piece of paper with instructions definitely gonna rip this thing out of my setup and get a regular voltmeter this was way mire expensive and a headache than it should have been. ... show more
Reviewed in the United States on August 18, 2026 by michael
Small but bright and clear
Does exactly what you think it does. I just wish the connector parts were darker so it could blend in more.
Reviewed in the United States on March 6, 2026 by Joe B.
Water meter
Awesome product!
Reviewed in the United States on April 3, 2026 by Amazon Customer
Great live data tool
Review Image by Life_In_Stereo
Very useful tool, wish I had bought two because now I want one for my other vehicle.
Reviewed in the United States on December 8, 2025 by Life_In_Stereo
Make sure its new
If you buy this unit make sure it was not used i got one and it didn't come in a box and didn't work they sent me a new one bc I returned it and this one came in a box and looked brand new and it works so make sure to inspect item also works great use a 7 wire conductor 7 wires in one and ita be easy to hook up ... show more
Reviewed in the United States on June 10, 2026 by Bradley
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