Gaussmeter Magnetometer
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| Brand | Alpha |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | EM2 |
| Price Range | USD 700 – 1,270 (FOB) |
| Operating Temperature | 0–43°C |
| Full-Scale Range | 0–199.999 µT |
| Resolution | 0.001 µT (1 nT) |
| Accuracy | ±0.5% of reading ±0.001 µT |
| Thermal Drift | <1.15 nT/°C |
| Dimensions | 194.7 × 100.6 × 44.3 mm |
| Weight | 525 g (with batteries) |
| Power | 3 × AA alkaline (10 h with backlight, 15 h without) |
| Display | Backlit LCD, relative-zero mode, vector capability (field magnitude & direction) |
| 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 |
| Brand | Auniontech |
|---|---|
| Model | FM-A (Analog) / FM-D (Digital) |
| Measurement Principle | Fluxgate Magnetometry |
| Axes | 1 (FM-D), 1 or 3 (FM-A) |
| Range | ±50 µT (FM-A), ±100 µT (FM-D) |
| Resolution | 1 nT (FM-D) |
| Noise Floor | 5 nT (0.1–10 Hz, FM-D) |
| Sampling Rate | Up to 100 Hz (FM-D) |
| ADC Depth | 24-bit (FM-D) |
| Power Supply | ±15 V (FM-A), USB-powered (≤10 mA, FM-D) |
| Field Tolerance | ≤5 mT |
| Compliance | CE-marked |
| Software Interface | DLL & LabVIEW™ drivers included |
| Application Scope | Geomagnetic monitoring, biomagnetic screening, NDT of conductive materials, EMI characterization, active field cancellation systems |
| Brand | Auniontech |
|---|---|
| Origin | Shanghai, China |
| Model | K3A |
| Measurement Principle | Semiconductor Hall Effect (3-axis orthogonal sensing) |
| Operating Temperature Range (Probe) | <1 K to 320 K |
| Full-Scale Ranges | ±2 T, ±5 T, ±9 T |
| Calibration Accuracy | 0.25% FS (optional cryogenic calibration down to 4 ± 2 K) |
| Noise Spectral Density (white noise) | <0.04 µT/Hz¹ᐟ² |
| Corner Frequency (1/f noise) | 10 Hz |
| Bandwidth | DC to 1 kHz |
| Field-Sensitive Volume | <0.6 mm³ |
| Probe Dimensions | 4.5 × 4.5 × 9 mm |
| Electronics Supply | 0–24 V DC |
| Interconnect Cable | 12 m |
| Electronic Box | 230 × 109 × 45 mm, 0.8 kg |
| Output | Differential ±10 V @ full scale |
| Offset Drift | <2 µT (<1 ppm FS) at room temperature |
| Long-Term Sensitivity Stability | <1% over 10 years |
| Temperature Coefficient | <25 ppm/K |
| Brand | Auniontech |
|---|---|
| Origin | Shanghai, China |
| Model | RM100 Fluxgate Magnetometer |
| Measurement Principle | Differential Fluxgate Sensing |
| Full-Scale Range | ±200,000 nT (±2 G) |
| Resolution | 0.1 nT |
| Absolute Accuracy | ±(0.01% of reading + 0.25% of range + 1 nT) |
| Offset Field Accuracy | ±(0.01% of reading + 0.2 nT) |
| Differential Field Accuracy | ±(0.25% of reading + 1 nT) |
| Temperature Stability | 0.5 ppm/°C (offset), 5.0 ppm/°C (differential), 50 ppm/°C (analog output) |
| Analog Output | 10 V / full scale ±1% |
| Low-Pass Filter Cutoffs | 10, 50, 100, 500, 1000 Hz (±2%) |
| Power Line Rejection | >40 dB at 60 Hz |
| Data Storage | 16,384 points |
| Interface | RS-232 (9.6–115.2 kbps), 10BASE-T Ethernet (SCPI-compliant) |
| Compliance | NIST-traceable calibration, ISO/IEC 17025-aligned metrology practices |
| Brand | Lake Shore |
|---|---|
| Origin | USA |
| Model | F71 (3-axis), F41 (1-axis) |
| Measurement Range | 35 mT to 35 T |
| DC Accuracy | ±0.15% of reading (standard probe, 350 mT–3.5 T range) |
| AC Bandwidth | 550 Hz (–3 dB), HF Mode: 20 Hz–7 kHz (–0.2%) |
| Resolution | < 0.1 µT |
| Probe Compatibility | FP-Series Hall Probes only |
| Compliance | Designed for GLP/GMP environments with audit-ready data logging capability |
| Brand | Auniontech (Distributor) |
|---|---|
| Origin | Shanghai, China |
| Package | QFN 3 × 3 × 0.9 mm³, 16-pin + thermal pad |
| Supply Voltage | 3.3 V or 5 V |
| Output Options | Analog (Bx/By/Bz/T) or Digital (SPI) |
| Configurable Ranges | ±0.1, ±0.3, ±1, ±3, ±10, or ±30 T |
| Resolution Options | 14-, 15-, 16-, or 16+-bit |
| Sampling Rates | 375 / 750 / 1500 / 3000 Hz |
| RMS Noise | <2.0 LSB (at 16+-bit) |
| Noise Density | 300 nT/√Hz |
| Analog Bandwidth | 50 kHz |
| Operating Temperature | −40 °C to +125 °C (LN₂-tested) |
| Sensing Volume | 200 × 200 × 5 µm³ |
| Brand | Auniontech (Hao Liang Optoelectronics) |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model Designation | Gaussmeter / Teslameter |
| Pricing | Available Upon Request |