Induction coil magnetometers
| Sensor | LEMI-118 | LEMI-120 | LEMI-121 | LEMI-123 | LEMI-134 |
| Application | Land | Land | Land / marine | Marine | Land |
| Frequency range | 1 - 70,000 Hz | 0.0001 - 1,000 Hz | 0.001 - 500 Hz | 1 - 1,000 Hz | 0.5 - 200,000 Hz (upon request) |
| Transformation factor | Linear section: f * 1 mV/nT Flat section: 20 mV/nT |
Linear section: f * 100 or 200 mV/nT Flat section: 100 or 200 mV/nT |
Linear section: f * 200 mV/nT Flat section: 200 mV/nT |
Linear section: f * 0.2 mV/nT Flat section: 20 mV/nT |
Linear section: f * 4 mV/nT Flat section: 20 mV/nT |
| Noise level | 1 Hz ≤ 5 pT/√Hz 10 Hz ≤ 0.2 pT/√Hz 10,000 Hz ≤ 0.005 pT/√Hz 50,000 Hz ≤ 0.001 pT/√Hz |
0.001 Hz ≤ 100 pT/√Hz 0.01 Hz ≤ 10 pT/√Hz 1 Hz ≤ 0.1 pT/√Hz 100 Hz ≤ 0.01 pT/√Hz |
0.001 Hz ≤ 600 pT/√Hz 0.01 Hz ≤ 5 pT/√Hz 100 Hz ≤ 0.05 pT/√Hz |
1 Hz ≤ 8 pT/√Hz 10 Hz ≤ 0.5 pT/√Hz 100 Hz ≤ 0.05 pT/√Hz 1000 Hz ≤ 0.02 pT/√Hz |
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| Power | ≤ 240 mW | 225 mW | 116 mW | 65 mW | 300 mW |
| Dimension | 800 mm (L) 42 mm (D) |
1340 mm (L) 85 mm (D) |
560 mm (L) 85 mm (D) |
255 mm (L) 48 mm (D) |
400 mm (L) 10 mm (D) |