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The iM-105 (Intelligent Measurement Total Station) incorporates all the features you need at a cost-efficient price. It will handle your most demanding survey layout or as-built project needs.

You get fast, accurate, and powerful EDM technology, best-in-class accuracy up to 5,000 m with a prism and up to 800 m in reflectorless mode, and a battery life of up to 28 hours. The iM-105 is ready to be your hardest worker out in the field.

  • Fast, accurate and powerful EDM
  • Integrated Blueooth® technology - no external antenna necessary for connectivity with the controller
  • Dual axis compensation
  • Waterproof IP66 rating
  • Up to 28 hours of battery life in Eco mode

SKU: Total Station

Category: Total Station, Sokkia Total Station

Product Details


Magnification / Resolving power

30x / 2.5"


Length : 171mm (6.7in.), Objective aperture : 45mm (1.8in.) (48mm (1.9in.) for EDM), Image: Erect, Field of view: 1°30' (26m/1,000m), Minimum focus: 1.3m (4.3ft.) Reticle illumination: 5 brightness levels

Angle measurement                     

Minimum Display

1"/5" (0.0002 / 0.0001gon, 0.005 / 0.02mil)

Accuracy (ISO 17123-3:2001)


Dual-axis compensator

Dual-axis liquid tilt sensor, working range: ±6'

Collimation compensation

On/Off (selectable)

Distance measurement

Laser output*

Reflectorless mode : Class 3R / Prism/sheet mode : Class 1

Measuring range (Reflectorless)

0.3 to 800m (2,620ft.) / Under good conditions*4 : 1,000m (3,280ft.)

Measuring range (Reflective sheet)

RS90N-K: 1.3 to 500m (4.3 to 1,640ft.), RS50N-K: 1.3 to 300m (4.3 to 980ft.), RS10N-K: 1.3 to 100m (4.3 to 320ft.)

Measuring range (Mini prism)

CP01: 1.3 to 2,500m (4.3 to 8,200ft.), OR1PA: 1.3 to 500m (4.3 to 1,640ft.)

Measuring range (One prism)

1.3 to 5,000m (4.3 to 16,400ft.) / Under good conditions*4 : 6,000m (19,680ft.)

Minimum Display

Fine / Rapid : 0.0001m (0.001ft. / 1/16 in.) / 0.001m (0.005ft. / 1/8 in.) (selectable), Tracking / Road : 0.001m (0.005ft. / 1/8 in.) / 0.01m (0.02ft. / 1/2 in.) (selectable)

Accuracy (Reflectorless)

(2 + 2ppm x D) mm

Accuracy (Reflective sheet)

(2 + 2ppm x D) mm

Accuracy (Prism)

(1.5 + 2ppm x D) mm

Measuring time (Fine)

0.9s (initial 1.5s)

Measuring time (Rapid)

0.6s (initial 1.3s)

Measuring time (Tracking)

0.4s (initial 1.3s)

OS, Interface and Data management

Operating system


Display / Keyboard

Graphic LCD, 192 x 80 dots, backlight, contrast adjustment / Alphanumeric keyboard / 28 keys with backlight

Control panel location

On both faces

Trigger key

Yes (right side)

Data storage (Internal memory)

Approx. 50,000 points

Data storage (Plug-in memory device)

USB flash memory (max. 32GB)


Serial RS-232C, USB2.0 (Type A for USB flash memory)

Bluetooth modem (option

Bluetooth Class 1.5, Operating range: up to 10m


Guide light

Green LED (524nm) and Red LED (626nm), Operating range: 1.3 to 150m (4.3 to 490ft.)


Coaxial red laser using EDM beam

Levels (Graphic)

6’ (Inner Circle)

Levels (Circular level on tribrach)

10' / 2mm

Plummet (Optical)

Magnification: 3x, Minimum focus: 0.5m (19.7in.) from tribrach bottom

Plummet (Laser Options)

Red laser diode (635nm±10nm), Beam accuracy: <=1.0mm@1.3m, Class 2 laser product

Dust and water protection / Operating temperature

IP66 (IEC 60529:2001) / -20 to +60ºC (-4 to +140ºF)

Size with handle

183(W)x 181(D)x 348(H)mm

Instrument height

192.5mm from tribrach mounting surface

Weight with battery & tribrach

Approx. 5.3kg (11.7lb)

Power supply


Li-ion rechargeable battery BDC70

Operating time (20ºC)

BDC70: Approx. 28hours

Application program

On board

• REM Measurement • 3D Coordinate Measurement • Resection • Stake Out • Topography Observation • Offset Measurement • Missing Line Measurement • Intersection • Surface Area Calculation • Route Surveying • Point to Line

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