What is the fine-grained topic of the following text: Currently it consists of a broadband sensor (such as a Streckheisen STS-2 or a Nanometrics Trillium), assorted other instrumentation (such as infrasound and meterological sensors), a Quanterra Q330 digitizer, a solar panel(s) and backup battery to provide power, a bilge pump in case of water leaks, a Vault Interface Enclosure (VIE), foam insulation, and a communications link to transfer data in near time (such as a cellular phone connection or VSAT) to the ANF. Only return the topic.
Seismographic station equipment