... (dB/°C)Dimen-sions14403Φ12.7mm(1/2”)1520020 ~ 40,000Free field30 ~ 160180.01Type WS11440420 ~ 12,000Pressurefield14405Φ6.35mm ... 3.510 ~ 70,000Free field40 ~ 1606.5Type WS3144062.510 ~ 40,000Pressurefield40 ~ 16014421Φ12.7mm(1/2”)30020 ~ 12,500Free ... field20 ~ 142170.02Type WS21442220 ~ 10,000Pressurefield150.02144235010 ~ 20,000Free field16 ~ 140190.01144254010 ~ 16,000Free ...