specifically:

• Input Power: DC 4.5 - 30 v
• measure voltage: dc 0-300 v
• voltage
• voltage> = 100 v, resolution: 1 v
• measure current: 50A - 100A  ( require shunt to measure the current, please check the image description for the reference link)
• current resolution: 0.1a
• Operating Current: <20ma
• Display: 0:28 "led, in two colors, red and blue
• size: 48 x 29 x 21 mm
• Cutting size: 45 x 26 mm
• Measuring rate: ≥ 500 ms / times
• Precision: 1% (  ± 1 digit)
• Operating temperature: - 10 ° C ~ + 65 ° c
• Operating Humidity: 10 ~ 80% (non-condensing)
• operating pressure: 80 ~ 106 kpa
• Applications: suitable for automotive / electricity sector car / motorcycle battery monitoring or other products of the current voltage measurement.