GEODEVICE - Model SmartMag -Overhauser base station magnetometer

Easy-to-Use Console
The console provides simple mode setup, real-time data view, and access to stored measurements from the built-in microSD card.
Data download via USB (to PC or smartphone) or real-time broadcast via RS-232 or CAN.

Features: OLED display (−40 to +60 °C); Backlit keypad; Built-in multi-band GNSS with RAW data collection.

Suitable for Magnetic Observatories
SmartMag offers high sensitivity, high sampling rate and <0.1 nT accuracy, making it an excellent choice for INTERMAGNET-grade observatories.
Real-time streaming: CAN FD or RS-232.
Optional CAN–Ethernet interface allows direct connection to network infrastructure; CAN line length up to several km.
Supplied with SmartManager software.

Ready-to-Use Package
The system includes all required components — no need to purchase extra cables, GNSS, or power accessories.
Options add functionality, but the basic configuration is fully operational out of the box.

Power & Autonomy
12+ hours at −30°C
23+ hours at +20°C
Power can also be supplied from: car battery, AC-DC converter (110/220 → 12V), solar panel.
The included Li-ion battery operates from −40 to +70°C and is certified for air transport.
No built-in sealed batteries → easier logistics and maintenance.

Data Format
Data is organized into project folders, each session saved as a TXT file named by:
- Console serial number
- Measurement mode
- Number of sensors

Each line contains:
UTC time, line/base name, field value, estimated error, sensor ID, lat/long, altitude, UTM (auto zone & hemisphere), and GNSS accuracy.
This makes datasets consistent and easy to merge, even when multiple operators work on site.

Multi-Sensor Gradiometer Support
SmartMag units can be synchronized over CAN FD to form multi-sensor arrays.
Up to 30 SmartMag sensors may be linked to a MaxiMag console, or a virtually unlimited network can be created using CAN–Ethernet interfaces.

Accuracy in Real Environments
Each instrument is metrologically tested (noise, absolute accuracy, orientation error).
Advanced filtering ensures reliable measurements under industrial noise and high-voltage powerlines.

Reliability & Warranty 
3-year warranty
Overhauser sensor lifetime >10 years
Trade-in program available

Built-in GNSS with PPK 
The multi-band GNSS receiver provides centimeter-level accuracy (PPK).
SmartMag can also work as GNSS base, rover or tracker, and GNSS RAW data can be converted to RINEX.
Supports NMEA-0183 and external GNSS via RS-232.

Key Advantages
Compact carry-on case, total weight ~7.5 kg
Unified rods: tripod or long pole assembly
12+ hours at −30°C, 23+ hours at +20°C
Power cable for car battery included

Operating Modes
- Base station with continuous measurements
- GNSS receiver mode with RAW GNSS data collection for a centimeter level accuracy with base or rover modes

Applications
- Base station for ground, drone, and airborne magnetic surveys
- Magnetic observatory
- Volcanology and earthquake prediction
- Operation with MaxiMag as a part of gradiometer for any type of ground magnetic surveys

Type: Overhauser magnetometer
Number of sensors: up to 30 with MaxiMag console; unlimited with optional CAN-Ethernet unit
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, 0.25, 0.5, 1 s and longer with 1 s step
Sensors stability: > 10 years
Additional sensors: IMU, compass
Interfaces: Built-in: USB, RS-232, CAN FD; Optional: Ethernet (CAN-Ethernet interface unit required)
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: 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 / RS232 / 12V, USB, external GNSS antenna, Overhauser sensor
Display: 160 × 128, OLED
Keypad: 6 buttons with backlight
Built-in memory: up to 32 Gb (microSD)
Power supply: 9.5-21 VDC, LiPo 3S/4S, Li-ion 3S/4S, LiFePo4 4S, or lead-acid battery; 100-240 VAC, optional power supply required
Operating temperature: –40 to +60 °C
Battery included: 14.8 V, 4 A·h
Dimensions with connectors: Ø73×116 mm – sensor; 125×100×35 mm – console
Item weight: 0.45 kg – console; 1 kg – sensor on rod; 0.7 - Li-ion battery
Weight of a set includes console, sensor, battery, tripod, and GNSS antenna 3.1 kg
Delivery package size and weight: 55.8 × 35.5 × 19 cm, 7.5 kg