GPS-212 / GPS-275
GPS-212 & GPS-275 Large Jaw Clamp Meters
52 mm jaw · 1000 A · CAT III 1000 V, CAT IV 600 V
Two auto-ranging clamp meters with a 2 inch jaw, wide enough for the cable sizes found on distribution boards, motor feeds and switchgear. Current reads to 1000 A without breaking the circuit, and a full multimeter, including capacitance and frequency, sits behind the same dial.
GPS-275 · AC/DC true RMS
Measurement capability
A digital multimeter will not carry 1000 A. A clamp reads it from outside the insulation, with nothing disconnected and nothing in series, and on these two the rest of the multimeter comes with it.
2 in (52 mm) jaw
Takes the cable sizes found on distribution boards, motor feeds and switchgear, up to 1000 A.
True RMS on the GPS-275
AC voltage and AC current measured true RMS, for the distorted waveforms drives and switch-mode loads produce.
DC current with zero
The GPS-275 measures DC to 1000 A and nulls the display first, which matters at the bottom of the range.
Non-contact voltage
A detector above the jaw gives a live check before anything is touched, on both models.
Temperature to 1000 °C
The GPS-275 takes a K-type probe, supplied, so a hot joint or bearing is read with the same instrument.
Peak hold and bargraph
The GPS-275 captures motor starting current and shows a 41-segment analogue bargraph alongside the digits.
Which model?
Same jaw, same case, same 4000-count display and the same CAT rating. The GPS-275 adds the functions you need when the work is not purely AC.
| Model | Current | True RMS | Capture | Temperature | Frequency | Part no. |
|---|---|---|---|---|---|---|
| GPS-212 | AC | — | — | — | 10 MHz | 460212 |
| GPS-275 | AC and DC | Yes | Peak hold · 41-segment bargraph | To 1000 °C | 4 kHz | 464275 |
Note the frequency range runs the other way: the GPS-212 carries the wider 10 MHz counter, while the GPS-275 is limited to 4 kHz. If you count frequency above a few kilohertz, the AC-only model is the one that does it.
Technical specifications
| Specification | GPS-212 | GPS-275 |
|---|---|---|
| Current measurement | AC | AC and DC, true RMS |
| AC current | 1000 A · ±(2.5% + 5 digits) · 10 mA resolution | |
| DC current | — | 1000 A · ±(3.0% + 4 digits) · 10 mA resolution |
| AC voltage | 600 V · ±(0.8% + 2 digits) · 0.1 mV resolution | |
| DC voltage | 600 V · ±(1.0% + 4 digits) · 0.1 mV resolution | |
| Resistance | 40 MΩ · ±(1.0% + 4 digits) · 0.1 Ω resolution | |
| Capacitance | 100 µF · ±(3.0% + 5 digits) | 40 mF · ±(3.0% + 5 digits) |
| Frequency | 10 MHz · ±(1.2% + 3 digits) | 4 kHz · ±(1.2% + 3 digits) |
| Duty cycle | 0.1 to 99.0% | |
| Temperature | — | Up to 1000 °C / 1832 °F · ±(3.0% + 5 digits) |
| Continuity and diode | Buzzer and diode check | |
| Non-contact voltage | Built-in detector with indicator, above the jaw | |
| True RMS | — | AC voltage and AC current |
| Display | 4000 counts, backlit | 4000 counts, backlit |
| Analogue bargraph | — | 41 segments |
| Data hold | Yes | Yes |
| Peak hold | — | Yes |
| Zero function for DC current | — | Yes |
| Electronic overload protection | Yes | Yes |
| Auto power off · low battery | Yes | Yes |
| Jaw opening | 2 in (52 mm) | |
| Power | 1 × 9 V battery | |
| Dimensions (h × w × d) | 271 × 100 × 47 mm | |
| Weight | 508 g | |
Where they are used
Industrial plant
Switchgear, motor feeds and panel maintenance where currents run to hundreds of amps.
Electrical contracting
Installation testing, fault finding and commissioning across commercial and residential work.
Renewables
Wind and PV installations, where DC string current and AC inverter output are both in scope.
Automotive and EV
Battery, charging and traction circuits, with DC current and the zero function on the GPS-275.
HVAC and process
Compressor and fan currents, capacitor checks and temperature on the GPS-275.
What’s in the box
- Clamp meter, model as ordered
- Test leads
- Temperature probe, GPS-275 only
- 9 V battery
- Carrying case, supplied in a gift box
Before you order
The GPS-212 does not measure temperature or DC current, and the temperature probe is supplied only with the GPS-275. Both models measure voltage to 600 V; the CAT III 1000 V rating describes the transient environment the instrument is built to survive, not a measurement range.
Compliance and downloads
Safety and approvals
- Overload
- Electronic overload protection on every function
- Pollution
- Degree 2
- Warranty
- 1 year, subject to product registration with GPS LTD
- Calibration
- Service and calibration available; ask us to quote with the instrument