Specifiche:
| Modello | ST181 | |
| Display | 4000 conteggi | |
| Campo | Precisione | |
| Tensione CA | 4V/40V/400V/600V | ±(1.5%+3) |
| Tensione CC | 400mV/4V/40V/400V/600V | ±(1.0%+3) |
| Resistenza | 400/4k/40k/400k/4M ohm | ±(1.2%+3) |
| 40M ohm | ±(1.5%+5) | |
| Corrente CA | 40A/400A | ±(2.5%+3) |
| Frequenza | 10Hz~400kHz | ±(1.0%+5) |
| 400kHz~4MHz | ±(2.0%+5) | |
| Capacità | 1nF~4uF | ±(2.5%+10) |
| 4uF~400uF | ±(4.0%+20) | |
| 4mF | ±(5.0%+30) | |
| Temperatura di lavoro | 18~28℃ |