Factory calibration is calibrated by FLUKE8846A with a 6 1/2-digit digital multimeter, and the measured voltage is marked on the shielding case.
The voltage divider resistors are all 0.01% resistors to make sure temperature drift, and the output is buffered by an operational amplifier.
Product input voltage +15V, output voltage +10V/+7.5V/+5V/+2.5V, etc.
Product accuracy and small size, easy to carry and store, withgood practicality.
Using high-quality materials, strong and durable, has a long service life.