The detection system in the NETH 203 and the NETH 20 uses an incremental encoder to measure horizontal and vertical angles. The unique double-sided keypad allows for quick and easy readouts, displayed brilliantly on LCD windows.

The powerful 30X telescope optics produces a crystal clear and bright image. An optical plummet, standard on the NETH 203 and the NETH 20, allows for fast and accurate setup.

NETH203   $1398	NETH20    $1198
	NETH20LP $1298
NETH 203 Specifications Telescope: Image Erect Magnification 30× Effective aperture 45 mm Resolving power 4" Field of view 1° 30' Minimum focus 3 ft Static Ratio 1:100 Angle Measurement: Measuring method Photoelectric Incremental encoder Minimum reading 10" Detection Method Horizontal single, Vertical single Measuring unit 360° Vertical 0° Zenith 0° or Horizontal 0° or Slope Accuracy 10" Sensitivity of Vial: Plate vial 30'/2mm Circular vial 8'/2mm Optical Plummet: Image Erect Magnification 3× Focusing range 1.5 ft Field of view 5° Display Double Sided LCD Battery Alkaline Battery (included) Voltage DC 6V Operation time 40 working hrs Operating Temperature -10°C-45°C Weight: Approx. Weight with Case 21 lb	NETH 20 Specifications Telescope: Image Erect Magnification 30× Effective aperture 45 mm Resolving power 3.0" Field of view 1° 30' Minimum focus 3 ft Static Ratio 1:100 Angle Measurement: Measuring method Photoelectric Incremental encoder Minimum reading 20" Detection Method Horizontal single, Vertical single Measuring unit 360° Vertical 0° Zenith 0° or Horizontal 0° or Slope Accuracy 20" Sensitivity of Vial: Plate vial 30'/2mm Circular vial 8'/2mm Optical Plummet: Image Erect Magnification 3× Focusing range 1.5 ft Field of view 5° Display Double Sided LCD Battery Alkaline Battery (included) Voltage DC 6V Operation time 30 working hrs Operating Temperature -10°C-45°C Weight: Approx. Weight with Case 21 lb