Test environment: temperature 20 Celsius, humidity 70 CelsiusOverload: Input five times the current of the vine scale every 5 seconds, this action is repeated 9 times, 0.5 seconds per secondVibration: The meter is packaged and fixed on a vibrating machine. Vibration frequency: 16.7Hz (1000 times/min); amplitude 14.5mm, 3 minutes in X, Y, and Z directionsDrop: The meter is packaged and dropped from a height of 30cm on a wooden board of 3cm thick. X, Y, and Z directions once eachDurability: 1,000,000 times correction point current on and offOperating temperature:Work for 2 hours in an environment of -10 Celsius± and keep the current at the calibration point on and offWork for 2 hours in an environment of 70 Celsius±3 Celsius and keep the calibration point current on and offTerminal temperature:Tensile force: Acting on the terminal with a force of 10 Newtons for 10 ± 1 secondTension: Acting on the terminal with a force of 2 Newtons for 10±1 secondsBending strength: Fold 90° in the positive and negative directions at the same position of the terminal with a force of 5 NewtonsHeat resistance: wave soldering: temperature 260±3 degrees Celsius, time 5 seconds, immersion depth 1.6mm (distance to PCB bottom surface)Specification:Sensitivity: 180uA±10%Friction: ±1mmZero position: ±1White LED: 2.8-3.8V 20mAColour:Black + YellowMaterial:Zinc cupronickelSize:3.5x3.7cmPackage Contents:1 x VU meterOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.