Review on 🔍 BTMETER BT 5800D Particulate Detector Monitoring: Optimize your Search by Robert Espinoza

This meter appears to be accurate and relatively easy to use. I have tested it in the office, at home and in clean rooms. In the office environment, the readings were slightly higher than in the home environment. That makes sense because we have a MERV 16 HVAC system at home. As expected, the external indicator was also higher. The clean room (ISO class 6 I think) showed 0, which is probably what you would expect. There are some features that could improve this gauge. First, I would really appreciate a computer interface. I've seriously considered getting a PurpleAir sensor to monitor the air quality in my area. If it had a computer interface, this could be a good alternative. I'm also wondering if there is a way to calibrate the sensor. I know moving to a clean room can give 0 readings, but I don't know how accurate the counts are or if the sensor will drift over time. Finally, I think the interface is a bit lacking. I've tried turning off the beeps but haven't found a way. The on/off button usually takes a few tries.