Digital volt-amp meter with 0.28 in display. Measures supply voltage from 0 to 100 V, display type is digital only. Dimensions approximately 1.89 in x 1.14 in x 0.87 in (48 x 29 x 22 mm). Operating temperature range -10°C to 65°C (14°F to 149°F). Accuracy class 1. Brand: Heltec Automation.