Digital Electrical Tester, AC/DC Clamp Meter, Auto-Ranging, 400 Amp


This product is no longer in production
  • Electrical Tester measures both AC/DC current via the clamp
  • Non-contact voltage tester integrated into the clamp jaw
  • High-visibility reverse contrast LCD display for improved viewability in all ambient lighting conditions
  • Automatically ranging True Root Mean Squared (TRMS) measurement technology for accuracy
  • Measures AC/DC voltage, DC microamp current, resistance, continuity, frequency, duty-cycle, capacitance and tests diodes via the test leads
  • Measures temperature with a K-Type thermocouple probe
  • Max/Min, Rel/Zero and Data Hold capability
  • Auto power off after five minutes to conserve battery life
  • Low battery indicator and easily accessible battery compartment
  • Built to withstand a 6.6 foot (2m) drop
  • Includes a carrying case, test leads, thermocouple probe, instruction manual and 3 x AAA batteries
  • CAT III 600V, Class 2, Double insulation safety rating
  • Meets requirements for use in basic and controlled electromagnetic environments like residential, office and light-industrial locations
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Klein Tools CL380 Electrical Tester is an automatically ranging true root mean squared (TRMS) digital clamp meter. It measures AC/DC current via the clamp, AC/DC voltage, DC microamps, resistance, continuity, frequency, capacitance, and diodes via test leads, and temperature via a thermocouple probe. It includes a non-contact voltage tester integrated into the clamp, and features a high visibility, reverse contrast LCD display that optimizes viewability both in dark or bright ambient lighting.

Clamp Meter
Measures AC/DC Current, AC/DC Voltage, continuity, resistance, DC microamp Current, Capacitance, Frequency, Duty Cycle, Temperature, and Tests Diodes. Detects Presence of AC Voltages with Integrated Non-Contact Voltage Tester
Special Features:
Measures Current to 400A AC/DC with the Clamp. Integrated Non-Contact Voltage Tester on the Clamp. High Visibility Reverse Contrast LCD Display for Improved Viewability in all Ambient Lighting Conditions. Low Battery Indicator. DC microamp Current
3 x AAA
Auto-Power Off:
Jaw Size:
Opens to 1.8'' (4.6 cm)
Drop Protection:
6.6' (2 m)
4000 Count Reverse Contrast LCD
NCVT, DC microamps, Temperature, Hold, Max/Min, Rel/Zer
600 V AC/DC
10 Hz to 60 kHz for 8 V to 220 V AC RMS
400 A AC/DC
4000 µF
Ohms (Resistance):
Range 40 MΩ
AC Voltage:
600 V
DC Voltage:
600 V
DC Polarity Indicator:
DC Micro-Amp:
200 μA
Temperature Range:
-40° F to 1832° F (-40° C to 1000° C)
CATIII 600V, Class 2, Double insulation safety rating
Carrying Case, Test Leads, Thermocouple Probe, Instruction Manual and 3 x 1.5V AAA Batteries
Overall Length:
8.66'' (22 cm)
Overall Height:
3.03'' (7.7 cm)
Overall Width:
1.61'' (4.1 cm)
8.3 oz (236 g)
Additional Information
  • Read, understand, and follow all instructions, cautions and warnings attached to and/or packed with all test and measurement devices before each use
  • Before each use, verify meter operation by measuring a known voltage or current
  • Never use the meter on a circuit with voltages that exceed the category based rating of this meter
  • Always adhere to local and national safety codes. Use personal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed
  • Usage of this meter in any way other than that specified by the manufacturer can impair safe operation, resulting in severe injury or death