Tekpower M-810B Ultra-Compact Pocket-Size 19-Range Digital Multimeter AC/DCV, DCA. Resistance, Diode check and transistor test Ultra-compact size measuring 3.75 x 1.75 x 1 inches and lightweight less than 3 oz Battery and test leads included. 3 1/2 digit display with a maximum reading of 1,999 One-year warranty