| VISIONLITE® | VISION® | VISIONPRO® |
| INPUTS | AC Voltage | 0 to 600 RMS continuous per channel | 0 to 600 RMS continuous per channel | 0 to 600 RMS continuous per channel (±5 kV peak transients) |
| AC Current | 0 to 5000 Amps | 0 to 5000 Amps | 0 to 5000 Amps |
| Sample Rate | 15,360 samples per second/channel; 256 samples per cycle | 15,360 samples per second/channel; 256 samples per cycle | 1 MHz Voltage (16666 samples/cycle), 250 kHz current (4166 samples/cycle) |
| CHANNELS | Voltage | 3 channels | 4 channels | 4 channels |
| Current | 3 channels | 4 channels | 4 channels |
MEASURED QUANTITIES PER CYCLE | RMS Voltage | Volts | Volts | Volts |
| RMS Current | Amps | Amps | Amps |
| Real Power | Watts | Watts | Watts |
| Apparent Power | VAs | VAs | VAs |
| Reactive Power | VARs | VARs | VARs |
| Phase Angle | Degrees | Degrees | Degrees |
| Power Factor | Watts/VA | Watts/VA | Watts/VA |
| Displacement PF | cos (phase angle) | cos (phase angle) | cos (phase angle) |
| Power Usage | kWh, kVARh, kVAh | kWh, kVARh, kVAh | kWh, kVARh, kVAh |
| ACCURACY | Voltage | 0.33% of full scale | 0.33% of full scale | 0.33% of full scale |
| Current | 1.0% of full scale w/o probe | 1.0% of full scale w/o probe | 1.0% of full scale w/o probe |
| Power | 1.0% of full scale w/o probe | 1.0% of full scale w/o probe | 1.0% of full scale w/o probe |
| Phase Angle | 1.0° w/o probe | 1.0° w/o probe | 1.0° w/o probe |
| Power Factor | ±0.02 w/o probe | ±0.02 w/o probe | ±0.02 w/o probe |
| Displacement PF | ±0.02 w/o probe | ±0.02 w/o probe | ±0.02 w/o probe |
| SAFETY | Rating | IEC 61010-1, 600V CAT IV | IEC 61010-1, 600V CAT IV | IEC 61010-1, 600V CAT IV |
| HARMONICS | Voltage | to the 51st | to the 51st | to the 51st |
| Current | to the 51st | to the 51st | to the 51st |
| Measures | magnitude, phase, THD | magnitude, phase, THD | magnitude, phase, THD |
| COMMUNICATIONS | Type Standard | USB 2.0 | Bluetooth®2.0 Class 1Wireless, USB 2.0 | Bluetooth®2.0 Class 1 Wireless, USB 2.0, 10/100MB Ethernet |
| INFORMATION STORAGE | Data Storage | 1 MB | 16 MB | 1 GB |
| Significant Change | 500 records | 1000 records | 1000 records |
| Flicker | 500 records | 1000 records | 1000 records |
| RECORD SETTINGS | Interval Graphs | 1 second to 4 hour interval. User selected, stop-when-full, or wrap around memory modes. | 1 cycle/second to 4 hour interval. User selected, stop-when-full, or wrap around memory modes | 1 cycle/second to 4 hour interval. User selected, stop-when-full, or wrap around memory modes |
| Significant Change | 1V to 8V in 1V steps | 1V to 8V in 1V steps | 1V to 8V in 1V steps |
| Flicker Settings | User-defined, or conform to IEEE 1453/IEC 61000-4-15, and IEEE Std. 141 | User-defined, or conform to IEEE 1453/IEC 61000-4-15, and IEEE Std. 141 | User-defined, or conform to IEEE 1453/IEC 61000-4-15, and IEEE Std. 141 |
| Waveform Capture | Voltage and current threshold, periodic capture, waveshapes, event cross triggers | Voltage and current threshold, periodic capture waveshapes, event cross triggers | Voltage and current threshold, periodic capture, waveshapes, event cross triggers |
| Transient Capture | N/A | N/A | Peak voltage threshold |
| POWER SUPPLY | Requirements | Internal battery, USB charger | Internal battery, USB charger | Internal battery, USB charger |
| ENVIRONMENTAL | | IP51 rating | IP51 rating | IP51 rating |
| PHYSICAL DIMENSIONS | Size | 7” L X 4.5” W X 1.4” H | 7” L X 4.5” W X 1.4” H | 7” L X 4.5” W X 1.4” H |
| Weight | 1.2 lbs | 1.2 lbs | 1.2 lbs |
| BATTERY | | 5 hour run-time | 10 hour run-time | 10 hour run-time |