SIS-1 Infrasound Sensor
The SIS-1 is Seismo Wave's compact, low-power infrasound sensor for portable setups, remote sites, or as an addition to seismic stations, and can be chained with other SIS-1 units on the same digitiser.
- Range
- ±995 Pa full scale
- Supply
- 3-20 VDC
- Frequency bandwidth
- 0.1-50 Hz (-3dB)
Overview
In detail
How it works
The SIS-1 provides a differential analogue output proportional to infrasound pressure, with a nominal sensitivity of 2.5-3.5 mV/Pa and self-noise below the Low Noise Model under 1Hz.
Deployment
Its compact, lightweight design and chainable connection let several SIS-1 sensors share a single digitiser, making it well suited to portable arrays or remote installations.
Power
The sensor runs from a wide 3-20VDC supply, drawing under 5mA at 12V, with reverse-polarity and over-voltage protection to 20V.
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Specifications
Technical specifications
- Range
- ±995 Pa full scale
- Frequency bandwidth
- 0.1-50 Hz (-3dB)
- Sensitivity
- 2.5-3.5 mV/Pa
- Supply voltage
- 3-20 VDC
- Power consumption
- <5mA under 12V
- Operating temperature
- -20 to +60°C
- Dimensions
- 156mm dia x 67mm H
- Weight
- 850g
Related
Often specified alongside
ESS Earth
Strong Motion Accelerograph
- Range
- ±4g accelerometer range
- Storage
- Local SD card, continuous ring buffer
- Connectivity
- Ethernet or cellular modem telemetry (optional)
- Range
- ±2g, ±5g, ±10g and higher, up to ±400g full scale
Ready to specify?
Add the SIS-1 to your enquiry
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