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GF603 Three-Axis Fluxgate Magnetometer

- Range: ±100μT ~ ±2000μT

- DC Basic Accuracy: 0.5%

- 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)

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Description Documents

COLIY^®--Excellent Solution for Magnetic Field Measurement
High Magnetic Field (0-10T) Measurement
Model	Principle	Type	Axis	DC Accuracy	Range	Resolution
X113	HALL	Sensor	1	0.05%	15T	TC of sensitivity: 30ppm/K
G80	HALL	Handheld	1	2%	2T	10μT
G81	HALL	Handheld	1	0.8%	10T	1μT
G81L	HALL	Handheld	1	0.8%	150mT	0.1μT
G83	HALL	Handheld	3	0.8%	10T	1μT
G401	HALL	Desktop	1	0.05%	10T	1μT
G403	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
F23	Fluxgate	Sensor	3	0.5%	1500μT	Output ±10V
GFP803	Fluxgate	Transmitter	3	0.2%	1mT	0.1nT
GMR61	GMR	Handheld	1	0.8%	600μT	10nT
GMR63	GMR	Handheld	3	0.8%	600μT	10nT
GF501	Fluxgate	Handheld	1	0.5%	200μT	1nT
GF503	Fluxgate	Handheld	3	0.5%	200μT	1nT
GF601	Fluxgate	Handheld	1	0.5%	1mT	0.1nT
GF603	Fluxgate	Handheld	3	0.25%	1mT	0.1nT
GF633	Fluxgate	Desktop	3	0.1%	1mT	0.01nT
Note: 1T= 10kG; 1mT= 10G; 1μT= 10mG; 1nT= 10μG

GF603 Three-AxisFluxgate 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 0.5%, 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	2mT	1mT
Probe Cable’s Length	Up to 200m	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 ~ ±2000μT

l DC Basic Accuracy: 0.5%

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)	±100μT	±1000μT	±180°	±90°
Accuracy	±0.5%	±0.5%	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 [f_T ≤ 300Hz] ±2% Reading ± 0.1% FS [300Hz < f_T ≤ 500Hz] ±10% Reading ± 0.1% FS [500Hz < f_T≤ 2kHz]
Frequency Response [f_T]	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]

Description of Magnetometer Selection

GF603

-10

Magnetometer Model

GF603

Spectrum Analysis Function

Not code – No

S - Yes

Measurement Range

-01 – ±100μT

-02 – ±200μT

-05 – ±500μT

-10 – ±1000μT

-15 – ±1500μT

-20 – ±2000μT

For example:

Model	Descriptions
GF603-01	3-Axis Fluxgate Magnetometer l With a 3-Axis Fluxgate Probe (±100μT range)
GF603-10	3-Axis Fluxgate Magnetometer l With a 3-Axis Fluxgate Probe (±1000μT range)
GF603S-01	3-Axis Fluxgate Magnetometer l With Real-time Spectrum Analysis Function l With a 3-Axis Fluxgate Probe (±100μT range)
GF603S-10	3-Axis Fluxgate Magnetometer l With Real-time Spectrum Analysis Function l With a 3-Axis Fluxgate Probe (±1000μT range)

Note:

1,Probes can be customized within ±2000μT;Unit Conversion: 1G=100μT=100,000nT;

2,The probe cable length is 1.5m default, and could be customized within 100m.

3,Fluxgate probehousing is made of POM and IP68protection.

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 100m

Please contact sales@coliy.com for the latest detailed datasheet.

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