Coliy Group
- Range: ±100μT ~ ±1500μT
- DC Basic Accuracy: 0.25%
- Finest resolution: 0.1nT
- DC/AC measurement mode switch
- Frequency response: DC- 2kHz
- Display XYZ axis and vector
- [GF603S] Real-time spectrum analysis
- Small-size Probe(24x24x50mm)
COLIY®--Excellent Solution for Magnetic Field Measurement | ||||||
High Magnetic Field (0-10T) Measurement | ||||||
Model | Principle | Type | Axis | DC Accuracy | Range | Resolution |
HALL | Sensor | 1 | 0.05% | 15T | TC of sensitivity: 30ppm/K | |
HALL | Handheld | 1 | 2% | 2T | 10μT | |
HALL | Handheld | 1 | 0.8% | 10T | 1μT | |
HALL | Handheld | 1 | 0.8% | 150mT | 0.1μT | |
HALL | Handheld | 3 | 0.8% | 10T | 1μT | |
HALL | Desktop | 1 | 0.05% | 10T | 1μT | |
HALL | Desktop | 3 | 0.1% | 10T | 1μT | |
GSP301D | HALL | Transmitter | 1 | 0.5% | 10T | 1μT |
GSP303D | HALL | Transmitter | 3 | 1% or 0.2% | 10T | 1μT |
Low Magnetic Field(0- 2mT) Measurement | ||||||
Gaussmeters for Low Magnetic Field | ||||||
Model | Principle | Type | Axis | DC Accuracy | Range | Resolution |
Fluxgate | Sensor | 3 | 0.5% | 1500μT | Output ±10V | |
Fluxgate | Transmitter | 3 | 0.2% | 1mT | 0.1nT | |
GMR | Handheld | 1 | 0.8% | 600μT | 10nT | |
GMR | Handheld | 3 | 0.8% | 600μT | 10nT | |
Fluxgate | Handheld | 1 | 0.5% | 200μT | 1nT | |
Fluxgate | Handheld | 3 | 0.5% | 200μT | 1nT | |
Fluxgate | Handheld | 1 | 0.5% | 1mT | 0.1nT | |
Fluxgate | Handheld | 3 | 0.25% | 1mT | 0.1nT | |
Fluxgate | Desktop | 3 | 0.1% | 1mT | 0.01nT | |
Note: 1T= 10kG; 1mT= 10G; 1μT= 10mG; 1nT= 10μG | ||||||
GF603 Three-Axis Fluxgate Magnetometer
Description:
The 2025-Version Three-axis Fluxgate Magnetometer GF603, madeby COLIY, has the excellent ergonomic design with the latest electronic technology, and it’s one of best choices to measure low-intensity magnetic field. This handheld fluxgate magnetometer can be used in geomagnetism detection, wrapped detection, traffic monitoring, measuring residual magnetism, low-intensity magnetic field measurement, etc.
The key feature of the 2025-Version Magnetometer GF603 is that the size of the probe is reduced to only 24x24x50mm, which is only 1/4 ofthe size of the old version, and it is one of the smallest high-performance fluxgate probes at present, which can be measured in a small space. Magnetometer GF603 adopts a high-precision 24-bit ADC chip, which greatly improves the magnetic field resolution. High performance circuit supports the measurement resolution of 0.1nT within the full measurement range. The power consumption of the whole machine is reduced by 1/4. Magnetometer GF603 boasts with an industrial class 3.2 inches touch panel display that enables customers’ instantaneous and simultaneous measurement results [Max/ Min/Peak/ Hold/ Alarm/ Polarity, XYZ axis and vector of Magnetic Flux Density, Declination/Inclination(D/I), Trend Graph and Real-time Spectrum Analysis (with model GF603S) etc.].
Magnetometer GF603 can be used to detect DC magnetic field in DC measurement mode and AC magnetic field in AC measurement mode respectively: GF603 allows DC measurements with a basic accuracy of 0.25%, resolution of 0.1nT and AC measurement with a basic accuracy of 1% and frequency response range of DC~ 2kHz. Meanwhile, Magnetometer GF603S has the function of real-time spectrum analysis within the frequency range 15Hz- 2kHz.
In addition, Magnetometer GF603 has passed the CE certification and EMC (Electromagnetic Compatibility) test.
Parameter Comparison | ||
Product Version | 2025-Version | 2020-Version |
Probe Size | 24x24x50mm | 32x32x107mm |
Sampling ADC bits | 24 bits | 18 bits |
Measurement Resolution | 0.1nT | 1nT |
Frequency Response | DC - 2kHz | DC - 1kHz |
Power Consumption | Reduced by 1/4 | High |
Max Range | 1.5mT | 1mT |
Probe Cable’s Length | Up to 300m | Up to 50m |
Features | |
l GUI Operation System l 3.2 inches color touch LCD l Full 5 display digits l Max/Min/Hold Function l Display trend graph & Alarm l Display XYZ axis and vector l Display R, D, I values l S or N Polar indication | lRange: ±100μT ~ ±1500μT l DC Basic Accuracy: 0.25% l AC Basic Accuracy: 1% l Finest resolution: 0.1nT l DC/AC measurement mode switch l Frequency response: DC- 2kHz l [GF603S] Real-time spectrum analysis lSmall-size Probe (24x24x50mm) |




GF603 Magnetometer Specification:
Model | GF603 / GF603S | |||
(DC) Measurement Specification | ||||
Tested item | Magnetic Flux Density | *D | *I | |
Range (FS)/Axis | ±100μT | ±1000μT | ±180° | ±90° |
Accuracy/Axis | ±0.25% Reading ±0.1% FS | ±0.25% Reading ±0.1% FS | 1° | 1° |
Finest Display Resolution | 0.1nT | 0.1nT | 0.1° | 0.1° |
Measurement Resolution | 0.1nT | 0.5nT | 0.1° | 0.1° |
Typical Temperature Coefficient ppm/℃ | ±100 | ±200 | N/A | |
Display Digits | 5 digits (More display digits will be shown in supporting PC software) | 4 digits | ||
Real-time Spectrum | Only GF603S within 15Hz~ 2kHz | N/A | ||
Hysteresis | <2nT for exposure to up to 2 x full scale <20nT for exposure to 10mT field within 10s | N/A | ||
(AC) Measurement Specification | ||||
Accuracy | ±1% Reading ± 0.1% FS [fT ≤ 300Hz] ±2% Reading ± 0.1% FS [300Hz < fT ≤ 500Hz] ±10% Reading ± 0.1% FS [500Hz < fT ≤ 2kHz] | |||
Frequency Response [fT] | DC – 2kHz | |||
Front Panel | ||||
Screen | 3.2 inches color resistive touch LCD,320x240 Pixel | |||
Units | Gauss(G), Tesla(T), Amperes per meter (A/m) | |||
Display Update Rate | 3 readings/second | |||
Display Mode | DC, AC, XYZ Axis, Vector R, Declination, Inclination, MAX, MIN, Trend Graph, Alarm, Polarity Indication, Real-time Spectrum [GF603S] etc. | |||
Probe | ||||
Start-up Time | 150 ms | |||
Warm-up Time | 15 min | |||
Probe Range | Could be customized within ±2000μT | |||
Probe Cable Length | Standard 1.5m; Customizable longest length of 100m. | |||
USB Interface | ||||
Function | 1, Communication Interface: to connect PC with Magnetometer host for monitoring the measurement; 2, Charging interface: to connect PC or mobile power with Magnetometer host for charging | |||
Software/ Driver | SMART PC Software without any driver | |||
Host Specifications | ||||
Operating Temperature | +15℃ to +35℃(Rated Accuracy) -10℃ to +60℃(Reduced accuracy) | |||
Storage Temperature | - 20°C to +75°C | |||
Ambient Magnetic Field | <100G (10mT) | |||
Battery | Rechargeable 4500mAH Li-ion | |||
Operating Battery Life | 6 hours; Can be charged by AC power or portable battery | |||
Dimension | 238 mm W × 95 mm H × 42 mm D | |||
Weight | 350g | |||
Certification | CE Certification, EMC Certification | |||
Note:
1, D- Declination, is the angle thatbetween the Z axis and the projection of the field vector onto the XZ plane.
2, I- Inclination, is the angle thatbetween the field vector and the XZ plane.
3, AC Range mentioned above refers to ACmagnetic field measurement range after DC magnetic field is shielded, so if DCmagnetic field is not shielded, and users want to measure magnetic field in ACmeasurement mode, AC Range is equivalent to the value that 0.7 times of DCRange minus DC magnetic field intensity. [SQRT(2)/2 ≈ 0.7]
ProbesSpecification
Model GF603/GF603S Magnetometer Probes | |||||
Probe Model | *Range | Frequency Response | Typical Temperature Coefficient | DC Accuracy ( 25℃) | Stem Material |
GF-Y01 | ±100μT | DC-2kHz | ±100ppm/℃ | ±0.25% | POM |
GF-Y01T | ±100μT | DC-2kHz | ±25ppm/℃ | ±0.25% | POM |
GF-Y10 | ±1,000μT | DC-2kHz | ±200ppm/℃ | ±0.25% | POM |
GF-Y10T | ±1,000μT | DC-2kHz | ±50ppm/℃ | ±0.25% | POM |
Note:
1, Three-axisfluxgate probe can be customized within ±1500μT;Unit Conversion: 1G = 100μT = 100,000nT;
2, Fluxgateprobe’s dimension: 50 x 24x 24mm, and its operating temperature: -20℃to +60℃;
3, The probecable length is 1.5m default, and could be customized within 300m.
4, Fluxgateprobe’s environmental protection / sealing is IP67by default.
Optional Accessories
Model | Descriptions |
GHOLD100 | 3-Direction Precision Movement Platform, is made of non-magnetic material. Users fixed the probe on the bracket front-end, and then manually rotate the knob so that the probe moves stably along the X, Y, Z-axis to a certain position and lock fixed. Maximum strokes of XYZ axis are 180mm,180mm and 280mm, and positioning accuracy is 0.1mm; center load: 20kg; weight: 6.2kg |
SAMRT PC Software | PC SOFTWARE for Magnetometer |
Probe Extension Cable | MAX length is 300m |
Description of Magnetometer Host Type Selection
Magnetometer | Description |
GF603 | Magnetometer WITHOUT the function of real-time spectrum analysis |
GF603S | Magnetometer WITH the function of real-time spectrum analysis |
Description of Probe Type Selection
GF | Y | 01 | T |
PROBE PRINCIPLE
GF- Fluxgate Probe
| PROBE TYPE
Y- Three-axis T- Transverse A- Axial | MEASUREMENT RANGE
01- 1G/Axis 10- 10G/Axis | TEMPERATURE COMPENSATION
BLANK- Without T- With |
Please contact sales@coliy.com for the latest detailed datasheet.