QA351 uV DC Voltmeter spo-disabled The QA150 is a high-side

The QA150 is a high-side current-to-voltage converter

with nearly 1 MHz of bandwidth

The lower gain will help with that

you can read dBSPL directly from the display and make dBA measurements over a specified bandwidth

Product Data Sheet (REVB)

QA351 uV DC Voltmeter spo-disabled The QA150 is a high-sideThe QA351 is a low cost voltmeter providing microvolt resolution and quick programmability through its REST interface. The QA351 should not be expected to replace a $2500 6. 5 digit DVM. Instead, the QA351 makes sense in applications where you are primarily concerned with precise, relative measurements over days or months in situations where humidity and temperature are reasonably controlled (for example, an office setting). The QA351 provides two