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Klein Tools® - CL312 - 400A AC Digital HVAC Clamp Meter

Item: KLE-CL312
MFR: CL312

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About This Product

Product Info


Klein Tools CL312 is an automatically ranging true root mean square (TRMS) digital clamp meter that measures AC current via the clamp, AC/DC voltage, DC microamps, resistance, continuity, frequency, capacitance, and tests diodes via test-leads, and temperature via a thermocouple probe. Features include Auto Range to improve efficiency and speed when making measurements; Diode Test to troubleshoot malfunctioning diodes; Max/Min to understand the variability from average of an electrical property being measured, and DC Microamps measurements when working with flame sensors.
Warning: this product contains a chemical known to the State of California to cause cancer.


Weight0.631 Pounds (lbs)
Width3.02 Inches (In)
Height1.61 Inches (In)
Country of OriginVar
Length8.7 Inches (In)
ApplicationMeasures AC Current, DC micro-Amp current
Audible AlertYes
Audible ContinuityYes
Auto Power OffYes
Auto RangingYes
Bar GraphNo
Batteries Required3 x AAA
BrandKlein Tools®
Capacitance Range4000µF
ColorBlack, Orange
Diode TestYes
Display Options4000 Count LCD
Duty Cycle10Hz to 1MHz
FeaturesLow Battery Indicator, DC micro-Amps (uA)
FunctionsAC current, AC/DC voltage, DC micro-Amps, resistance, continuity, frequency, capacitance and test diodes.
IncludesCarrying Case, Test Leads, Thermocouple, Batteries
Includes CaseYes
Jaw Opening1.12" (28.6 mm)
Maximum AC Amps400A
Maximum AC Voltage600V
Maximum DC Amps600
Maximum DC Voltage600V
Maximum Ohms40MΩ
Maximum Resistance40MΩ
Min/Max MemoryYes
On/Off SwitchYes
Operating Temperature Range-40° to 1832°F (-40° to 1000°C)
Overall Length8.7" (22.1 cm)
Package Quantity1.0000
Peak HoldYes
Power SourceBattery
Prop 65Yes
Safety RatingCAT III 600V, Class 2, Double insulation safety rating
StandardsCAT III 600V; CE Certified
Temperature Range-40° to 1832°F (-40° to 1000°C)
True RMSYes
TypeVoltage, Current, Resistance, Continuity
Voltage600V AC; 600V DC
Voltage Accuracy+/- (% of reading +# of least significant digits)
Voltage Range600V AC; 600V DC
Warranty OfferedYes


Equipment Part List