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Black handheld digital clamp meter with LCD display and open jaws

aFe Power ANENG ST181 Digital Clamp Meter 4000 Counts

SKU CH-86QW-0BS42

Measures AC current to 400 A plus AC/DC voltage, resistance, capacitance, diode, continuity and frequency with 4000-count resolution

  • Featuresclamp multimeter kit, Battery Powered, false
  • Height10 L x 10 W x 2 H centimeters
  • Width10 L x 10 W x 2 H centimeters
  • Length10 L x 10 W x 2 H centimeters
  • Weight0.6 grams
  • Sports Team1 Piece
  • Measures AC current up to 400 A without breaking the circuit
  • Detects live voltage without contact using NCV function
  • Auto-ranging 4000-count display gives clear readings for voltage resistance capacitance diode continuity frequency
  • Jaw opens to 1.42 in for thick conductors
  • Compact 10 cm design weighs only .6 g for easy carrying

aFe Power ANENG ST181 Clamp Meter

The aFe Power ANENG ST181 is a digital clamp meter designed for electricians and DIY users troubleshooting electrical systems. It measures AC current up to 400 A, AC and DC voltage, resistance, capacitance, diode, continuity and frequency. The clamp jaw opens to 1.42 inches for non‑intrusive current readings. A 4000‑count display with backlight aids visibility in low light.

NCV Detection and Auto‑Ranging

The built‑in non‑contact voltage (NCV) function lets you detect live AC voltage without touching conductors. Auto‑ranging selects the appropriate measurement scale automatically, reducing setup time. The meter operates on battery power and includes a 1.24‑inch jaw opening as an alternative grip option. These features speed up fault‑finding in commercial and household wiring.

Verify Measurement Needs Before Buying

This meter measures AC current only; it cannot measure DC current. Confirm that your work requires AC‑only current capability. The jaw opening of 1.42 inches limits the maximum conductor size. Ensure the 4000‑count resolution meets your accuracy requirements for the intended applications.

Highlights

  • Measures AC current up to 400 A without breaking the circuit
  • Detects live voltage without contact using NCV function
  • Auto-ranging 4000-count display gives clear readings for voltage resistance capacitance diode continuity frequency
  • Jaw opens to 1.42 in for thick conductors
  • Compact 10 cm design weighs only .6 g for easy carrying

Specifications

BrandaFe Power
Featuresclamp multimeter kit, Battery Powered, false
Height10 L x 10 W x 2 H centimeters
Width10 L x 10 W x 2 H centimeters
Length10 L x 10 W x 2 H centimeters
Weight0.6 grams
Sports Team1 Piece
TypeClamp

Questions about this item

Will the jaw mechanism on this ANENG ST181 clamp meter need replacement after frequent use?

The jaw opens to 1.42 inches and is built for daily professional use; no user-serviceable jaw parts are listed, so normal operation does not require scheduled replacement.

What measurement limit will I reach first when clamping a live 400 A circuit continuously?

The AC current range tops out at 400 A, so sustained loads at or above that value will hit the meter's maximum reading before any thermal limit is documented.

How much heat or noise does the ST181 produce when left on all day?

The meter is battery-powered with no fan or moving parts, so it generates negligible heat and runs silently during extended sessions.

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