Topcon's engineering and construction automatic levels are streamlined and more compact than ever. They are lightweight for easy transport and the completely waterproof telescope is effective for all kinds of wet surveying operations.

Angular reading to 10 minutes (AT-G1)
Model AT-G1 has a glass horizontal circle which is graduated in 10 minute divisions (10c divisions) and numbered every degree (one grade) with calibrations from 0° to 360° (0g to 400g). Furthermore, readings are possible through a 25x reading microscope, with only a slight shift of the eye, from the telescope eyepiece. The horizontal circle freely rotates for zero alignment.

2 speed focussing (AT-G1)
Fine and coarse focussing is provided by a coaxial focussing knob, which permits rapid setting and accurate focussing for perfect image at the same time.

Clamp less fine horizontal adjustments
Fine horizontal adjustments are possible at any point through 360° (400g) of the arc, without clamping action. This means that target alignments are greatly speeded up. Furthermore, fine horizontal knobs are available on both sides for very easy and speedy adjustments.

Very short 0.5 meter focussing (AT-G3/G4/G7N)
AT-G3/G4/G7N have a short range setting position of 0.5 meter that is especially suitable for close range work carried out by builders and contractors.

Designs and specifications here in are subject to change without prior notice. In order to obtain the best results with this instrument, please be sure to review all user instructions prior to operation.