description klein slim digital multimeter trms auto ranging klein tools mm450 multimeter is a trms auto-ranging slim multimeter that measures ac/dc voltage, ac/dc current, and resistance. it can also measure temperature, capacitance, frequency, duty-cycle, and test diodes and continuity. it features a high visibility, reverse contrast display with an optical sensor to automatically optimize viewing in dark or bright ambient light. the slim profile of the mm450 makes this meter almost the size of a cell phone and it conveniently fits into most pockets. the mm450 features the same quality leads you have come to expect from the digital multimeter line at klein tools. years of field research, combined with extensive input from electricians across america, inspired the development of meters and electrical testers loaded with innovative, time-saving features. california proposition 65 warning. view warning label features multimeter with automatic ranging true root mean square (trms) technology for increased accuracy measures up to 600v ac/dc voltage, 10a ac/dc current and 50 mω resistance, continuity, temperature, capacitance, frequency, duty-cycle, and test diodes high visibility, reverse contrast display with automatic backlight adjustment lead-alert protection with leds for test lead placement slim profile allows multimeter to conveniently fit into most pockets low battery indicator and easily accessible battery and fuse compartment durable meter built to withstand a 6.6-foot (2 m) drop includes carrying pouch, safety rated cat iii 1000v/cat iv 600v test leads, thermocouple with adapter and 2 x aaa batteries cat iii 600v safety rating specifications acme tools brand name klein tools acme tools part number mm450k assembled weight (lbs) 0.575 battery type aaa california proposition 65 warning required yes case included yes color / finish orange/black country of origin china depth (in) 1.09 digital / analog digital duty cycle capable yes internal supplier part # mm450 length (in) 6.5 manufacturer warranty please refer to attached warranty document. material abs, electrical components operating temperature range -40° to 1832°f (-40° to 1000°c) package contents case package depth 1 in package height 1 in package weight 1 resistance capable yes temperature range -40° to 1832°f (-40° to 1000°c) upc 092644693755 weight (lbs) 0.56875 weight (oz) 9.1 width (in) 3.14