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The FW Bell 4190 Elf Meter is lightweight and completely self-contained. The 4190 Elf Meter utilizes an extended bandwidth feature, the F20 option, that extends the -3 dB frequency response from 30 to 20,000 Hz. For measurements required from sources with high harmonic content, this feature is exceedingly valuable. Users are able to select readings in Gauss or Tesla. The 4190 features relative mode, auto range, and min./max./peak hold.
Easy to use, the Elf Meter can be used for a wide variety of commercial and home applications like detecting magnetic field emissions from video display terminals, AC power lines, office equipment, household appliances, and all types of electronic equipment. The 4100 series accurately measures extremely low frequency magnetic fields generated by eletrical equipment. Users are able to select readings in Gauss or Tesla. The 4190 features relative mode, auto range, and min./max./peak hold. This meter also includes a switchable single axis mode feature, allowing users to display vector components of magnetic fields.
| Parameter | Value |
| Model | 4190 |
| Basic Accuracy | ±(1% + 1 digit) typical |
| Frequency Response | 30 to 2,000 Hz |
| Update Rate | 1000 msec single axis, 1200 msec 3-axis mode |
| Sample Rate | 5K samples/second |
| Measuring Range | 0.1 to 1999 mG, 0.01 to 199.9 μT |
| Minimum Resolution | 0.1 mG / .01 µT |
| Display | LCD |
| Digits | 3.5 |
| Readings | Gauss, Tesla |
| Analog Output | 2V FS DC or 1V FS AC RMS |
| Communication Port | USB |
| Data Logging | Yes - software data logging |
| External Power Supply | Yes |
| Weight (with batteries) | 177 g |
| Operating Temperature | -10ºC to 50ºC (14ºF to 122ºF) |
| Power | 4 AAA Alkaline Batteries |
| Dimensions | 4.7" x 3.0” x 1.75" |
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FW Bell PSU-4 Domestic AC Adapter, 5V, 110V |
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FW Bell PSR-5 International AC Adapter Switching 220V |
