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Klein Tools ET45VP electrical test kit with voltage tester and GFCI receptacle tester

Klein Tools ET45VP Test Kit with GFCI and AC/DC Voltage

SKU CH-9DYB-7MFBC

Electrical test kit combines an AC/DC voltage tester covering 24–240 V AC and 32–330 V DC with a GFCI receptacle tester for wiring faults

  • FeaturesET45: Electronic Voltage Tester; RT210: Receptacle Tester, I
  • Height7.88 L x 4.63 W x 1.38 H inches
  • Width7.88 L x 4.63 W x 1.38 H inches
  • Length7.88 L x 4.63 W x 1.38 H inches
  • Weight0.22 pounds
  • Sports Team1 Piece
  • Tests AC voltage 24 V to 240 V across four levels
  • Tests DC voltage 32 V to 330 V across four levels
  • Battery-free operation powered by applied voltage
  • CATIII 350 V rated with IP44 ingress protection
  • Receptacle tester detects wiring faults in standard and GFCI outlets

Kit Contents

The Klein Tools ET45VP kit combines an ET45 electronic voltage tester with an RT210 receptacle tester. The ET45 checks AC voltages from 24 to 240 volts and DC voltages from 32 to 330 volts across four levels. The RT210 identifies common wiring faults in standard and GFCI receptacles.

What the Accessories Change

Built-in test lead holders on the ET45 keep leads spaced for tamper-resistant US-style outlets and provide compact storage. Battery-free operation draws power from the applied voltage, removing the need to replace cells. The RT210 adds GFCI trip testing so users can verify ground-fault protection without a separate instrument.

Installation and Common Issues

Both testers are handheld and require no assembly or software setup. The ET45 carries a CATIII 350V rating with double insulation and IP44 ingress protection for job-site durability. Users should verify that the circuit under test falls within the stated voltage ranges; the kit does not measure current, resistance or continuity.

Highlights

  • Tests AC voltage 24 V to 240 V across four levels
  • Tests DC voltage 32 V to 330 V across four levels
  • Battery-free operation powered by applied voltage
  • CATIII 350 V rated with IP44 ingress protection
  • Receptacle tester detects wiring faults in standard and GFCI outlets

Specifications

BrandKLEIN TOOLS, Klein Tools
FeaturesET45: Electronic Voltage Tester; RT210: Receptacle Tester, Ip44, Corded Electric, true
Height7.88 L x 4.63 W x 1.38 H inches
Width7.88 L x 4.63 W x 1.38 H inches
Length7.88 L x 4.63 W x 1.38 H inches
Weight0.22 pounds
Sports Team1 Piece

Questions about this item

What maintenance will the ET45 voltage tester require since it has no battery?

The ET45 draws power from the circuit under test, so there is no battery to replace; keep the leads clean and store them in the built-in holders to maintain reliable contact.

What limit appears first when using the ET45 continuously on a live circuit?

The tester is rated CAT III 350 V; sustained use above that voltage or outside the 24–240 V AC and 32–330 V DC ranges exceeds its safety and measurement limits.

Does the ET45 generate noticeable heat or noise during all-day testing?

The ET45 has no fan or moving parts and is powered only by the applied voltage, so it produces no audible noise and negligible heat during extended use.

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