Tekpower TP7244L 7-Function 20-Range Analog Multimeter With Back Light with Strong Protective Holster High accuracy & Ideal for AC and DC voltage check at low range Back light for use in dark, Decibel Value Measurement,Zero Adjustment Compare with its previous generation, 7244L is the same as 7244 but built with a LED back light Confirms to the EN61010/IEC1010 standard CAT II 600V, 20Kohm/V,DC, 9Kohm/V AC Built with a strong protective case, it has 1 year warranty