Specificatie:
| Model | ST181 | |
| Scherm | 4000 tellingen | |
| Bereik | Nauwkeurigheid | |
| Wisselspanning | 4V/40V/400V/600V | ±(1,5%+3) |
| Gelijkspanning | 400mV/4V/40V/400V/600V | ±(1,0%+3) |
| Weerstand | 400/4k/40k/400k/4M ohm | ±(1,2%+3) |
| 40M ohm | ±(1,5%+5) | |
| Wisselstroom | 40A/400A | ±(2,5%+3) |
| Frequentie | 10Hz~400kHz | ±(1,0%+5) |
| 400kHz~4MHz | ±(2,0%+5) | |
| Capaciteit | 1nF~4uF | ±(2,5%+10) |
| 4uF~400uF | ±(4,0%+20) | |
| 4mF | ±(5,0%+30) | |
| Werktemperatuur | 18~28℃ |