AC-2S

The economical, compact and lightweight AC-2S features a built-in compensator with magnetic damper that automatically levels line of sight. With an endless horizontal tangent screw, it is operable with either hand and employs a friction brake for faster operation. Moreover, it can be mounted on flat- or spherical-head tripod.

Key Features for AC-25 Automatic Level

Compact and lightweight (1.25kg/2.8 lbs.)
The built-in compensator automatically levels the line of sight over a wide compensation range of ±16' with a setting accuracy of ±0.5"
The powerful 24x telescope has a 30mm objective lens for clear, bright images in an erect and unreversed orientation
The minimum focusing distance of 0.75m/2.46 ft. lets you work even in confined places
Standard deviation for a 1-km double-run level is just ±2.0mm
The horizontal tangent knobs have an unlimited range and can be operated with either hand. A friction brake enables quick, easy setting
The detachable eyepiece lens can be replaced with an optional diagonal eyepiece prism
Specially designed base plate for mounting on either flat- or domed-head tripods
The water-resistant body construction allows use in light rain or dusty conditions
The AC-2S model is identical to the AC-2, except for the stadia line

Specifications for AC-2S Automatic Level

	B20	B21
Image	Erect	Erect
Magnification	32x or 40x (opt.)	30x
Resolving Power	n/a	n/a
Field of View	1° 20' (2.3 ft. @ 100 ft.)	1° 20' (2.3 ft. @ 100 ft.)
Minimum Focus	1 ft. (0.3m)	1 ft. (0.3m)
Stadia Ratio	1:100	1:100
*Compensator — PL1 (split-image tubular vial); all others (wire-hung; magnetically damped)*
Setting Accuracy	0.3"	0.5"
Range	± 15'	± 15'
*Leveling Accuracy (all models)—in 1.0 km (1 mile) of double-run leveling*
Standard Deviation	± 1.0mm / .004 ft.	± 1.5mm / .006 ft.
w/ micrometer	± 0.8mm / .003 ft.	± 1.2mm / .005 ft.
Level Vial (all models) — circular
Sensitivity	10' / 2mm	10' / 2mm