From old datasheet system Digital Multimeter; DMM Type:Handheld; No. of Digits/Alpha:3-4/5; DMM Response Type:True RMS; Approval Categories:CAT III 1000V, CAT IV 600V; Calibrated:No; Current Measuring Range:5 to 10A; Current Setting AC:0.4166666666666667A RoHS Compliant: NA dual 4-Bit Inverting buffer/Driver dual 4-Bit Non-Inverting buffer/Driver Octal 3-STATE bus Driver ALS SERIES, dual 4-BIT DRIVER, TRUE OUTPUT, PDIP20