NEF-800 Natural VLF Water Detector:
1. Fast and high efficiency
2. Good precision and high accuracy


NEF-800 Natural VLF Water Detector:

NEF-800 Natural VLF Water Detector is the other
upgrade product based on continuous
improvement and enhancement. The applied
module of full imported IC control and filtration
completely reaches international leading level to
fixed machine filtering of frequency; you can get
perfect stability and accuracy in data
measurement. It is also further improved in
shielding interference signal and design of anti-
jamming.

terials for field survey. It is your optimal assistant
in geophysical survey.
NEF-800 Natural VLF Water Detector main
technical parameters
1. Automatic noise reduction, super 5 shifts anti-
jamming design, fit for various geological
conditions.

2. 5 frequencies or 30 frequencies measurement
synchronously.

3. Operating functions are all on the LCD screen,
easy operation.

4. Automatic measurement, data storage and
curves mapping. No need to record data and the
data can be transferred to U disk directly..

5. It can store 5 frequencies measuring data of 30
curves and multiple frequencies data of 30 curves,
the data and curves can be displayed.

6. Use film switch panel to make usage more
stable and convenient, the appearance is
beautiful.

7. Power supply: by large capacity chargeable
lithium batteries.

8. Electrode test and power monitor function.

9. Measuring range: 0.001mV~355mV (auto range
transfer)

10. Resolution: 0.001mV

11. Measuring voltage accuracy: ±1% ±1LSB

12. Measuring currency accuracy: ±1% ±1LSB

13. Input impendence: ≥50MΩ

14. Working temperature: -10°C~+50°C

15. Working humidity: 95%

16. Whole weight.2.5kg, size:
31cm*23cm*10.8cm.