POLYUS's Laser Rangefinders have excellent technical performance to meet professional use in:

New POLYUS's Laser Rangefinders Family is simple in use and operates in harshest environments. Advantages of eye-safe Er:Glass laser technology and tacheometry (combination of a laser rangefinder and electronic precision goniometer) raise great possibilities for new applications.

All laser rangefinders have digital display. Unwanted echoes from nearest targets and dummy objects due to atmospheric interference (rain, snow, smoke, etc. ) may be gated by minimum range setting from 50 to 5000 m. Rangefinders provide first/last target selection and measurement of range to each of them.

Model

EG-LRF Eye-Safe Laser Rangefinder

LDI-3-1M Compact Laser Rangefinder

KTD-2-2 Topographic Laser Rangefinder

Laser

Er: Glass

Nd: YAP

Nd: YAP

Wavelength, µm

1.54

1.079

1.079

Measurement Range, m

50...25000

50...25000

100...10000

Accuracy, m

±5.0

3.5

0.5

Pulse Repetition Rate, s^-1

1/5

1/3

1/4

Sight Magnification

x 7.5

x 7.5

x 7.5

Operating Temperature, °C

-20...+50

-40...+50

-40...+50

Output Interface

RS-232

serial-parallel code

Power Supply

DC, 12 V, Ni - Cd battery

Dimensions, mm

220x200x90

75x145x155

260x200x90

Weight, kg

1.9

1.3

2.7

LISD-2 Laser Velocimeter & Rangefinder measures vehicle speed and range for traffic control. The main advantage of LISD-2 Laser Velocimeter & Rangefinder is the use of narrow-beam light of semiconductor laser operating at wavelength of 0.8 µm and avalanche photodiode as the receiver that allows to distinguish any vehicle in heavy traffic. The device realizes the pulsed method of ranging with automatic calculation of radial velocity.

LISD-2 Laser Velocimeter & Rangefinder performs:

Measurement speed

0 - 200 km/h

Maximum range to car

400 m

Measurement range

2 - 999 m

Range measurement accuracy

± 0.2 m +0.001 L

Measurement time

0.45 s

Directional pattern width

0.004 x 0.004 rad

Field of sight view

6°

Lifetime

5 x 10⁷ cycles

Interface

RS-232

Power supply:
- 6V, 4 AA battery (1000 measurements at 20 °C)
- external power supply 12 +-2V, 0.2A

Overall dimensions

210 x 162 x 92 mm

Weight

no more 1.6 kg

Operating temperature range

-30...+50 °C

Safety standard: LISD-2 Laser Velocimeter & Rangefinder is eye-safe device and corresponds to Class 1

  LISD-2 Laser Velocimeter & Rangefinder also registers a signal miss or loss, eliminates measurement errors because of jumping to another vehicle, automatically makes up to 10 repeat measurements in case of unsuccessful previous ones, has audible signaling indicative of operation and exceeding a speed limit.
  LISD-2 Laser Velocimeter & Rangefinder is designed as a single unit with a built-in battery. At the front of the device there is the sight eyepiece with the built-in digital indicator, the controls, the liquid-crystal display, the mains and interface plugs. The start button is placed at the top of housing. The device is provided by shoulder belt or could be set on a tripod.

LISD-2 Laser Velocimeter & Rangefinder is joint development of POLYUS Research & Development Institute and KrasnogorskyPlant and made by the order and with funds of MKNT Joint-Stock Company of Moscow Government

The KTD-3 Laser Tacheometer is designed for measurement of angles and distances at topographic survey, survey of general layouts of industrial enterprises, in engineer geodesy, at network closeness, in traversing, etc.
The built-in microcomputer provides solution of various geodetic tasks, the device checkup and control. Using the KTD-3 Laser Tacheometer one may determine:
- horizontal angles;
- vertical angles;
- slope distance;
- altitude differences or heights of sighting points;
- coordinate increments of coordinates of sighting points.

Geodetic coordinate are computed as corrected for the Earth curvature, atmospheric refraction, temperature and pressure, height and coordinates of position points.

Measurement accuracy (RMS):
- horizontal angles
- vertical angles
- ranges

2"
3"
20 cm

Measured ranges to diffusely reflecting targets

10,000 m

Rate of measuring

1 measurement per 4 s

Wavelength

1080 nm

Telescope magnification

25 x

Power supply: DC, 12 V, Ni-Cd battery 2 Ah

Operating temperature

-40...+50 °C

Weight (without battery)

8 kg

  The KTD-3 Laser Tacheometer set includes tripod, accumulator battery, the charge - discharge device, devices for measuring ambient temperature and atmospheric pressure, accessories for the tacheometer maintenance.
  The information presented on digital display may be transmitted on an external recorder.