2Hz High Sensitivity Geophone(P/N: ST-2A) is designed for receiving deep, low frequency and weak signals. With the characteristics of ultra-low natural frequency, ultra-high sensitivity along small volume and lightweight. ST-2A is suitable for engineering vibration measurement and single point signal acquisition with vertical, horizontal or three-component combination optional. Low natural frequency of 2Hz. Ultra-high sensitivity … Continue reading 2Hz High Sensitivity Geophone