AlphaLab
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| Brand | AlphaLab |
|---|---|
| Origin | USA |
| Model | GM1-HS |
| Measurement Range | ±799.99 G |
| Resolution | 0.01 G |
| Accuracy | ±1% of reading (16–29°C), ±2% (-4–65°C) |
| Probe Type | Single-axis Hall-effect sensor with 100 cm flexible cable |
| Probe Dimensions | 2.3 × 4.8 × 24 mm |
| Instrument Dimensions | 132 × 91 × 41 mm |
| Weight | 227 g |
| Power | 9 V alkaline battery (≈20 h operation) |
| Display update rate | 4 Hz |
| Operating temperature | -4°C to +65°C |
| Storage temperature | -20°C to +70°C |
| Brand | Alphalab |
|---|---|
| Origin | USA |
| Model | GM1-ST |
| Measurement Range | ±19,999.9 G (±1.99999 T) |
| Resolution | 0.1 G |
| Accuracy | ±1% of reading (16–29°C), ±2% (-4–65°C) |
| Display | 5½-digit LCD, polarity-indicating |
| Probe | Integrated Hall-effect sensor, 1.5 × 4.3 × 24 mm, mounted on 100 cm flexible cable |
| Operating Temperature | -4°C to +65°C |
| Power | 9 V alkaline battery (≈40 h life) |
| Certifications | CE, NIST-traceable calibration certificate included |
| Compliance | Meets IEC/EN 61326-1 for EMC and safety |
| Brand | Alphalab |
|---|---|
| Origin | USA |
| Model | GM1-ST |
| Measurement Range | 0 to 19,999.9 G |
| Resolution | 0.1 G |
| Display | 5½-digit LCD |
| Update Rate | 4 readings/sec |
| Sensor Cable Length | 100 cm (flexible, bendable tip) |
| Minimum Gap Clearance | 0.060 in (1.5 mm) |
| Operating Principle | Hall-effect DC magnetic field sensing |
| Brand | AlphaLab |
|---|---|
| Origin | USA |
| Model | GM2 |
| Measurement Range (ST Probe) | ±19,999.9 G / 0.1 G resolution |
| Measurement Range (HS Probe) | ±799.99 G / 0.01 G resolution |
| DC Accuracy (16–29°C) | ±1% of reading + 10 counts |
| AC Accuracy (45–800 Hz) | ±3% of reading + 10 counts |
| Peak Hold Accuracy | ±2% of reading + 10 counts |
| AC Bandwidth | DC to 1.5 kHz (−3 dB) |
| Peak Capture Window | 2 ms |
| Analog Output | ST: ±2 V (±20 kG) |
| HS | ±0.8 V (±800 G) |
| Probe Cable Length | 100 cm |
| Dimensions | 138 × 91 × 41 mm |
| Weight | 213 g |
| Power | 9 V alkaline battery (ST: ~40 h |
| HS | ~20 h) |
| Brand | AlphaLab |
|---|---|
| Origin | USA |
| Model | MGM |
| Measurement Range | ±2000 mG (±200 µT) |
| Resolution | 0.01 mG (1 nT) |
| Display | 5½-digit, -1999.99 to +1999.99 mG |
| Update Rate | 3 Hz |
| Analog Output | ±2 V = ±2 G (±2000 mG), ±0.5% accuracy |
| Bandwidth | DC–3 Hz standard (optional DC–300 Hz) |
| Sensor Type | Axial anisotropic magnetoresistive (AMR) |
| Active Sensor Area | 1 mm × 0.2 mm |
| Temperature Stability | Offset TC < 0.01 mG/°C |
| Accuracy (Gain) | ±0.5% FS |
| Offset Error | ±0.5 mG |
| Operating Temp | 0–45°C |
| Dimensions | 18 × 9 × 5 cm |
| Weight | 325 g (incl. battery) |
| Brand | AlphaLab |
|---|---|
| Origin | USA |
| Model | MR3 |
| Measurement Principle | Magnetoresistive (MR) Sensor Array |
| Axes | X, Y, Z (orthogonal vector components) |
| Full-Scale Range | ±1999.99 mG (±199.999 µT) |
| Resolution | 0.01 mG (1 nT) |
| Accuracy | ±0.5% of reading + ±0.50 mG offset error |
| Sampling Rate | 2 Hz (updates per second) |
| Temperature Stability | Offset TC < 0.01 mG/°C |
| Repeatability | ±0.01 mG (1 nT) at constant temperature |
| Sensor Geometry | Three MR sensors embedded in a 25 mm cube, positioned ~4 mm below surface, with mechanical X/Y/Z axis markings on housing |
| Cable Length | 100 cm flexible coaxial cable |
| Power | 4 × AA alkaline batteries (included, ~40 h operation) or universal AC adapter (included) |
| Data Logging | Internal storage of X/Y/Z/M and peak values |
| Display | Simultaneous readout of instantaneous and peak values for all four parameters (X, Y, Z, M) |
| Compliance | CE-marked |
| Brand | AlphaLab |
|---|---|
| Origin | USA |
| Model | UHS2 |
| Frequency Range | 13 Hz – 75 kHz |
| Full-Scale Range | 1999.99 mG |
| Resolution | 0.01 mG |
| Accuracy | ±3% (45 Hz – 5 kHz), ±7% (<45 Hz and >5 kHz) |
| Power | 9 V alkaline battery (~20 h operation) |
| Measurement Modes | True 3-Axis ELF+VLF, 3-Axis VLF-only (1–75 kHz), Single-Axis Full-Bandwidth (13 Hz–75 kHz) |
| Brand | AlphaLab |
|---|---|
| Origin | USA |
| Model | VGM |
| Measurement Range | ±799.99 G |
| Resolution | 0.01 G |
| Accuracy | ±1% of reading (16–29 °C), ±2% (−4–65 °C) |
| Axis Configuration | Triaxial (X, Y, Z) DC magnetic field sensors co-located within 1.5 mm at probe tip |
| Vector Magnitude Calculation | √(X² + Y² + Z²) |
| Peak Hold Time Constant | 5 ms |
| Alarm Response Time | 5 ms |
| Alarm Threshold Range | 1.00–790.00 G (100-step adjustable) |
| Probe Dimensions | 6.3 × 6.3 × 50 mm |
| Display | Real-time magnitude + individual X/Y/Z components (polarity included) + simultaneous peak values |
| Power | 9 V alkaline battery (≈10 h life) or USB adapter (included) |
| Compliance | CE marked |
| Calibration | NIST-traceable certificate included |
| Output Interface | 3.5 mm mono audio jack (active-high 3.5 V alarm signal, 0 V inactive) |
| Environmental Operating Range | −4 to +65 °C |
| Physical Dimensions | 147 × 97 × 51 mm |
| Weight | 332 g |