SENTRY ST550 is an electrostatic fieldmeter with high-precision measurement of an electric field to ± 20 kV. It is easy to use for locating and measuring static charges with a lightweight, compact design.
Specification:Â
| Model name | ST550 |
| Measuring Range |  Low MODE:±1,999V Hi MODE: ±20KV |
| Resolution | Â Low MODE:1V Hi MODE:10V |
| Accuracy | Â 10% |
| Measuring distance | Â 25mm(0.1″) |
| Operation humidity | Â 0~85%(RH) |
| Response time | Â 500ms |
| Dimensions | Â 120 x 49 x 29mm(4.7″ x 2.0″ x 1.2″) |
| Distance mark | Â Two LED guide lights |
| Ground Wire | Â Yes |
| Weight | 152.4g(5.38 oz.)with battery |
| Accessories | 9V Battery, Instruction manual, Ground wire, Carrying case, Box |
Features:
- High precision and LCD display.
- Accurate positioning by dual LED.
- Zero adjust and Auto power off function.
- Optional accessories with ground wire.
- Average, Maximum, and Minimum Mode
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