QA351 uV DC Voltmeter spo-disabled you can read dBSPL directly

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

the differential measurement is made inside the QA461 with an INA199A gain-of-50 shunt current monitor

Update 5-Aug-2021: We have caught up on all backorders

with nearly 1 MHz of bandwidth

QA351 uV DC Voltmeter spo-disabled you can read dBSPL directlyThe 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