MaxiMag – the World's most advanced and portable magnetometer/gradiometer based on the Overhauser effect. The instrument is designed to measure magnetic field with high sensitivity and absolute accuracy. MaxiMag can be used as a field magnetometer, two- or multi-sensor gradiometer, base station, or observatory magnetometer. MaxiMag console is fully compatible with SmartMag digital magnetometers and recognizes them as standard digital Overhauser sensors.
Perfect gradiometer for any task resolution
MaxiMag console allows you to connect up to 30 digital Overhauser sensors or SmartMag magnetometers via a wired CAN interface. This unique feature enables to build two- or multi-sensor gradiometers with the required measurement base.
Easy-to-use tablet console
We have equipped the console with a large, excellent daylight readable, heated display, a two-way switch panel, modern wired interfaces and even a flashlight. The control of measured values and their quality is provided in digital, graphical, and audible modes. Line planning, operator guidance, saving of coordinates and exact times of measurements are provided by built-in multi-system GNSS receiver. In some cases, external GNSS receiver is required - MaxiMag supports the standard NMEA-0183 protocol and can be connected to most navigation devices. Data download is available via USB, RS-232 or from the built-in industrial microSD card. We also made sure that all our parts and connectors were non-magnetic, which allowed to reduce the dimensions of the ready-to-go magnetometer set. Maneuvering with a magnetometer in forests and jungles has never been easier!
Magnetometer for magnetic observatories
High sensitivity, sampling rate, and accuracy (less than 0.1 nT) allow to use MaxiMag in magnetic observatories, but a more optimal solution to this problem is provided by the digital SmartMag. Both magnetometers support real-time data upload mode via USB, CAN FD or RS-232 connection. Optional CAN-Ethernet interface module can be connected directly to the network equipment. The digital CAN FD line can be up to several kilometers long. The device is supplied with the SmartManager software which has all the necessary functionality to work in the INTERMAGNET network of magnetic observatories.
Metrology - a guarantee of high accuracy
Every MaxiMag sensor is metrologically tested. We control the standard deviation of random error (noise), absolute accuracy and orientation error. All magnetometers are supplied with a certificate of calibration performed on a certified measure of magnetic induction. Metrological tests guarantee the accuracy and reliability of the measured data.
Reliability and warranty
Our R&D specialists have extensive experience in performing geophysical surveys. We are well aware that such equipment must be reliable, and the service must be fast and comfortable. We give 3 years warranty on all our magnetometers, and our technical support will promptly answer any of your questions. Our Overhauser sensors have the longest in the World lifecycle of more than 10 years. You can also take advantage of our trade-in program and replace your old instruments with the new MaxiMag with available discounts.
Important "little things"
We know that geophysical instruments should not have useless details, so we try to make our equipment as comfortable to use as possible. Here are some important details of MaxiMag:
Type |
Overhauser magnetometer |
Number of sensors |
up to 30 |
Dynamic range |
20 000 to 120 000 nT |
Absolute accuracy |
0.1 nT |
Sensor sensitivity |
0.021 nT/√Hz rms 0.012 nT/√Hz rms (on request) |
Resolution |
0.001 nT |
Gradient tolerance |
30 000 nT/m |
Sample rates |
0.2, 0.33, 0.5, 1, 1.5, 2, 2.5, 3 s and longer with 1 s step |
Sensors stability |
> 10 years |
Interfaces |
built-in: USB, RS-232, CAN FD. optional: Ethernet (CAN-Ethernet interface module) |
Maximum communication cable length |
up to 6 km (CAN FD), up to 100 m (RS-232) |
GNSS receiver |
built-in and optional external |
GNSS antenna |
built-in and optional external |
GNSS signals |
GPS L1C/A and L2C; GLONASS L1OF and L2OF; Galileo E1B/C and E5b; BeiDou B1I and B2I; QZSS L1C/A, L1S and L2C. SBAS: WAAS, EGNOS, MSAS, GAGAN, SDCM. |
Connectors |
2 × CAN FD+12V / RS232+12V, USB, external GNSS antenna |
Display |
240 × 128, LCD |
Membrane switch panel |
32 buttons |
Internal memory capacity |
up to 32 Gb (industrial microSD) |
Power |
10 ÷ 16.8 V, Li-ion or lead battery 220 V / 50 Hz, optional CAN-Ethernet interface |
Operating temperature |
–40 to +60 °C |
Li-ion battery |
14.6 V, 4 A·h |
Flashlight |
LED, 300 lumens |
Dimensions with connectors |
950×125×72 mm – sensor 260×150×45 mm – console |
Item weight |
1.2 kg – console 1.3 kg – sensor |
Weight of a set includes console, sensor, Li-ion battery, harness and sensor cable |
3.8 kg – magnetometer 5.2 kg – gradiometer |