• Cost-effective
• Installs in 5 minutes or less
• Reusable, lasts for >10 years
• Waterproof to 20ft (6 m)
• Industrial cable, custom lengths
• Standard millivolt output
• N.I.S.T traceable calibration
The ST350 Strain Transducer has been designed to quickly and accurately measure strain on a variety of structures in harsh field environments. This 350 Ω full Wheatstone bridge strain transducer is highly accurate, rugged, and waterproof.
The ST350 is used to evaluate live-load stresses on structures such as bridges, buildings, cranes, and amusement park rides. It is prewired for direct connection with data loggers and is ideal for structural monitoring and data acquisition systems.
Providing roughly 3.5 times the output of a typical foil strain gage, these reusable sensors are ideal for measuring live-load strain on structures and can be installed within minutes in all weather conditions. With over 30 years of field use, these units have become the gold standard for accurate field measurements.
| Model | ST350 |
| Circuit | Full Wheatstone bridge with 4 active 350 Ω strain gages |
| Excitation Voltage | +1.0 to +10.0 VDC |
| Output | mV level, ratiometric to excitation voltage |
| Strain Range | ±4,000 µε (Calibrated to ±2,000 µε) |
| Typical Sensitivity | ~500 µε/mVout/Vin |
| Accuracy1 | < ±1% |
| Effective Gage Length | 3.0 in (76.2 mm) [Gage extensions available for R/C structures] |
| Housing | Machined 6061 Aluminum Alloy |
| Corrosion Protection | Hard Anodized Clear (MIL-A-8625 Type III) |
| Weather Protection | Designed to exceed IP67 Optional 100 ft (30 m) waterproofing available |
| Temperature Rating2 | -58° to +176°F (-50° to +80°C) |
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