GI10 is a passive piezoelectric AE sensor with preamplifier built-in and very low frequency response, all-metal shell features makes it reliable and could be buried in the ground for long-term monitoring.

GD40 is a differential waterproof narrow band sensor with 1.7 meters cable, it is suitable for working in noisy environment, could effectively suppress the common-mode noise.

The GD150 is a differential waterproof narrow band sensor with 2.2 meters cable, it is suitable for working in noisy environment, could effectively suppress the common-mode noise.

The G80/1 is a passive piezoelectric AE sensor with narrowband. High protecting grade makes it possible to work in the water or uderground.

GI40/2 is a passive piezoelectric AE sensor, waterproof and all-metal shell features make it possible to be buried in the ground or work in the liquid for long-term monitoring.

G150/2 is a passive piezoelectric all-metal AE sensor with narrowband and high sensitivity, also it is waterproof. Pure metal structure makes it reliable and endurable.

The G150/1 is a passive piezoelectric AE sensor with narrowband and high sensitivity, also it is waterproof. Stainless steel material makes it reliable and endurable.

Passive piezoelectric miniature AE sensor. The connector was designed on the side of the sensor and the small size makes it possible to work in narrow space.