Review on 📶 Astatic (302-PDC2) Black SWR/RF/Field Strength Test Meter: High Accuracy for Optimal Signal Performance by Heather Lawson

I ordered one of those cheap SWR modules. When it arrived, the bottom button under the chassis was pressed. Revane sent me another squad. The bottom button was also damaged on the new device, but not as badly; the slide knob was loose and had no tension. I tried to use the device but could not set the starting point for the SWR test. I think the damage to the bottom button is due to the devices being packed too tightly for shipping; apply excessive pressure to the bottom button. I would suggest buying a different brand.