| Model | NI-7 | |
| Analog | Input signal range | -19mV～19mV |
| Conversion speed | More than 10 times/s | |
| Nonlinearity | 0.0015% | |
| Gain drift | 0.03% | |
| Bridge voltage | DC 5V | |
| Sensor connection | 1-4 350Ω sensors | |
| Indication | Indication range | -99999～999999 (decimal point is not considered) |
| Scale interval | 1/2/5/10/20/50 optional | |
| Serial communication interface | Signal | RS232 signal |
| Transmission distance | ＜20m | |
| Operating environment | Power supply | AC220V; 50, 60Hz (-2%~+2%) |
| Operating temperature | -10°C ～40°C | |
| Storage and transport temperature | -25 °C ～55 °C | |
| Relative humidity | ≤85%RH | |
| Fuse | 500mA | |
| Weight | Approx. 2 kg | |
