description klein ac/dc digital clamp meter klein tools cl390 is an automatically ranging true root mean squared (trms) digital clamp meter. it measures ac/dc current and ncvt via the clamp, ac/dc voltage, dc microamps, resistance, continuity, frequency, capacitance, and diodes via test leads, and temperature via a thermocouple probe. it features a high visibility, reverse contrast lcd display that optimizes view ability both in dark or bright ambient lighting. clamp meter measures current, voltage, resistance and continuity. digital meter has auto-ranging trms technology for accuracy. includes a carrying case, test leads, thermocouple, and batteries. measures temperature with a k-type thermocouple probe. max/min, rel/zero and data hold capability. auto-power off after 10 minutes to conserve battery life. includes a carrying case, test leads with cat iii/cat iv safety caps, thermocouple, instructions, and 3 x aaa batteries. low battery indicator and easily accessible battery compartment. built to withstand a 6.6-foot (2 m) drop. 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. for more than 160 years, klein tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. klein isn't just the name of our company, it's also our family name. and since we're an american company that's family-owned and family-run, you know you can count on us to be here tomorrow. klein tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... since 1857. california proposition 65 warning. view warning label features test lead holder on side of clamp and optional magnetic hanger for meter (cat. nos. 69445 or 69417) for hands free operation non-contact voltage tester integrated into the clamp jaw high-visibility reverse contrast lcd display for improved view ability in all ambient lighting conditions automatically ranging true root mean squared (trms) measurement technology for accuracy measures ac/dc current and ncvt via clamp and ac/dc voltage, resistance, frequency, dc microamps, capacitance, duty cycle, diode test, and continuity via test-leads, and temperature with thermocouple measures temperature with a k-type thermocouple probe max/min, rel/zero and data hold capability auto-power off after 10 minutes to conserve battery life includes a carrying case, test leads with cat iii/cat iv safety caps, thermocouple, instructions, and 3 x aaa batteries specifications acme tools brand name klein tools acme tools part number cl390 assembled weight (lbs) 0.516 battery quantity required 3 battery size aaa california proposition 65 warning required yes case included yes color / finish black and orange country of origin china dc polarity indicator yes dc voltage 600 v digital / analog digital digital display yes globaltradeitemnumber (gtin) 00092644692871 internal supplier part # cl390 internet product code (ipc) db4402d25d7 manufacturer warranty please refer to attached warranty document. material abs/electronics maximum amperage (a) 400 package contents case package depth 11.3 package height 3 package weight 1.3 tester type current upc 092644692871