The STS4-4-IW3 is a rugged 4-channel wireless data acquisition, DAQ, node typically used for diagnostic live-load testing projects. The long battery life and ruggedized design makes this hardware ideal for use in harsh field conditions.

We have always developed our STS hardware based on 30+ years of field-testing experience as well as feedback from all of our clients around the world. Because we’ve slogged through the mud, rappelled from ropes, and swayed in bucket trucks—all in bad weather—we know that ease-of-use is a must. The software is simple to operate, and the built-in sensor verification routines ensure you’ll collect quality data.

With the significant cost associated with field work, the STS4 will pay for itself after just a few uses compared to traditional data acquisition systems.


Measurement Types: Analog Input Temperature Input Analog Single-ended or Differential 3KΩ NTC Thermistor
Maximum Sample Rate: Analog Input Temperature Input 1,000 S/s ~1 S/s (non-user adjustable)
Programmable Gain Stages 11
Analog to Digital Converter (ADC) 24-bit ADC (Sigma delta)
Analog Inputs 4
Temperature Inputs (NTC Thermistor only) 4
System Memory 16 MB (Operating System)
Internal Micro SD Card 8 GB
Excitation Voltages
VX (programmable) +1 to +5 Vdc @ 20 mA (per channel)
V+15 +15 Vdc @ 400 mA (combined)
Li-Ion Battery +10.8 Vdc (Nominal), 6.8 Ah, 73 Wh
DC Supply +24 Vdc @ 3.0 Amp (max for charging)
Power over Ethernet +48 Vdc (IEEE 802.3af)
Sensor Interface
Connector 10-Pin weatherproof Mil-Spec circular bayonet snap-lock.
Intelliducer Support1 Yes
Weather Protection Splash-proof
Size 8.0 x 4.5 x 3.25 in (203 x 115 x 83 mm)
Weight 2.63 lb (1,200 g)
Battery & DC Supply Operation -4° to +140 °F (-20° to +60 °C)


Standard 802.11b/g/n wireless protocol with wired Ethernet backup

Designed to exceed IP6
Communication & power up to 16 data channels
Internal Li-Ion battery with up to 40 hours of testing time
  • A completely wireless turnkey load testing system
  • All sensors automatically identify themselves—no tracking channel numbers!
  • Hardwired backup communication capability in case of extremely noisy environment
  • Capable of reading virtually any analog sensor

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