Kindly follow NRPP, NRSB or C-NRPP Testing Protocol
Follow height and distance measuring requirements established by NRPP, NRSB or C-NRPP. (At least: 20 inches (50cm) above floor; 12 inches (30cm) below ceiling; 12 inches (30cm) from walls; 36 inches (90cm) from exterior doors, windows, or openings; and 4 inches (10cm) from other objects).
Place at approximate breathing height. (3 - 6 feet (90 - 180cm) above the floor).
Make sure it is laid flat on a solid surface or use a tripod. Do NOT use Pro in vertical orientation.
Place where it cannot easily be tampered with (pushed/moved/damaged).
DO NOT TEST OUTDOORS. The Pro is intended indoor use ONLY.
How to perform your measurements
Follow NRPP, NRSB and C-NRPP testing Guidelines or your regulatory body.
For optimum functionality and longevity, a suitable environment is:
Indoor use only.
5% Relative Humidity to 80% RH non-condensing.
39°F to 104°F / 4°C to 40°C.
Keep clean, without heavy dust or dirt.
Away from vents, windows and direct sunlight.
When the Pro is not in use, it should always be stored in its case.
Do NOT store in your vehicle.