ST181 Digital Clamp Meter – 4000 Counts AC Current Clamp, AC/DC Voltage, Resistance, Frequency, Capacitance, Continuity, Backlight
Specifications
| Parameter | Value |
|---|---|
| Model | ST181 |
| Type | Digital clamp meter + multimeter |
| Display | 4000 counts, LCD with backlight |
| Operating temperature (general) | 0–40 °C |
| Working accuracy temp (spec) | 18–28 °C |
| Operating mode | Manual function and range selection |
| Overload protection | Full range |
| Battery included | No |
| Certification | CE |
| High-concern chemicals | None |
Measurement ranges
| Function | Range |
|---|---|
| AC voltage | 4V / 40V / 400V / 600V |
| DC voltage | 400mV / 4V / 40V / 400V / 600V |
| AC current (clamp) | 40A / 400A |
| Resistance | 400Ω / 4kΩ / 40kΩ / 400kΩ / 4MΩ / 40MΩ |
| Frequency | 10Hz–400kHz and 400kHz–4MHz |
| Capacitance | 4nF / 40nF / 400nF / 4µF / 400µF / 4mF |
Accuracy (as provided)
| Function | Range | Accuracy |
|---|---|---|
| AC voltage | 4V/40V/400V/600V | ±(1.5% + 3) |
| DC voltage | 400mV/4V/40V/400V/600V | ±(1.0% + 3) |
| Resistance | 400Ω–4MΩ | ±(1.2% + 3) |
| Resistance | 40MΩ | ±(1.5% + 5) |
| AC current (clamp) | 40A/400A | ±(2.5% + 3) |
| Frequency | 10Hz–400kHz | ±(1.0% + 5) |
| Frequency | 400kHz–4MHz | ±(2.0% + 5) |
| Capacitance | 1nF–4µF | ±(2.5% + 10) |
| Capacitance | 4µF–400µF | ±(4.0% + 20) |
| Capacitance | 4mF | ±(5.0% + 30) |
Functions and features
| Feature | Supported |
|---|---|
| Continuity test | Yes |
| Data hold | Yes |
| Low battery indicator | Yes |
| Auto power off | Yes |
| Backlight | Yes |
The ST181 is a professional digital clamp meter (pinza amperimétrica) built for safe and convenient current measurements without breaking the circuit. Using the clamp jaw, you can measure AC current up to 400A by clamping around a single conductor, which makes it ideal for electrical maintenance, installation checks, troubleshooting in panels, and service work on household and industrial equipment.
Besides clamp current measurement, the ST181 works as a full multimeter for AC/DC voltage, resistance, frequency and capacitance, and it includes continuity testing for fast wiring checks. The 4000-count display with backlight keeps readings clear, and useful functions like data hold, low-battery indication and auto power off make daily work easier. This model uses manual selection for measurement function and range, which gives you direct control during diagnostics. The product is shipped without a battery.
Technical adjustment: Clamp meters typically measure AC current through the clamp; DC current measurement is normally done by test leads on specific models. Based on the provided ranges (40A/400A) and spec table, the clamp function is listed as AC current, while AC/DC applies to voltage.
Package contents (without battery)
Item 1: 1 × ANENG ST181 clamp meter
Item 2: 1 × Black packing bag
Item 3: 2 × Test probes
Item 4: 1 × User manual
Item 5: 1 × Packing box