Features: 100% and high qualityEasy to Perfect for fault finding on automotive or commercial vehicle electrical circuitQuimeasurement and high accuracyMeasurement range: 0.01A~19.99AMax Load:20A/48Vdc for max. 10 secsAccuracelectrical circuity: ±(2% of reading + 2 dis)F Type Power Supply:StandardPower Supply:12V 23A(not Including)Operating Condition:Temperature 0°C~40°CRelative Humidity: Le than 75%Storage Condition:Temperature -10°C~50°CRelative Humidity Le than 80%Operation Instruction:Turn off the vehicles' engineTake out the f and put it in slot of the AE150. Please e sure the circuit protection is correct . (The f of the is 20A/48 V, standard type)Insert the plug of the into the vehicle f socketIf neceary, start the vehicle engine and energize the circuit first. Then turn on the by preing the power switnder test, operate the circuit and the display will show the measured currentTurn off the by preing the power on again when you finish the measurementMaterial: plasticcolour: As shownPackage Contents:1 set x Car Auto Current Only the above package content, other products are not included.Note: Light reflection and different displays may ca the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.