Country of Origin China
Brand Unbranded

Check the listing for details. YMC-05 LM399H LM399 5 ½ or 6½ Digit Voltage Reference for Multimeter Calibration. Condition: New, Made in China. Listed at 50.67 USD. 6.95V is the direct output of LM399H. 10V is 6.95V outputted to 10V after being boosted by a precision op amp. Compared with 4 ½ digit references such as AD584 and BQ588, its temperature coefficient is much smaller, and basically does not exceed 0.5PPM/°C.

$25.34
$50.67