Spesifikasi : - Measuring range : DC 0V - 100V - Power supply: 4V - 40VDC - Refresh speed : About 200mS once - Reverse Protection : Yes : Display method : Three 0.28 "LED digital tube Red - Dimension display : 23 x 10 x 5 mm , length X width x thick (without mounting ears); - Dimension PCB : 33 x 10 x 0.2 mm - With the installation of ear length: 33mm - Weight : 8g - Operating temperature : -10 C to 65 C