A Guide to Total Stations:

A total station is a combination electronic transit and electronic distance measuring device (EDM). With this device, as with a transit and tape, one may determine angles and distances from the instrument to points to be surveyed. With the aid of trigonometry, the angles and distances may be used to calculate the actual positions (x, y, and z or northing, easting and elevation) of surveyed points in absolute terms.
A standard transit is basically a telescope with cross-hairs for sighting a target; the telescope is attached to scales for measuring the angle of rotation of the telescope (normally relative to north as 0 degrees) and the angle of inclination of the telescope (relative to the horizontal as 0 degrees). After rotating the telescope to aim at a target, one may read the angle of rotation and the angle of inclination from a scale. The electronic transit provides a digital read-out of those angles instead of a scale; it is both more accurate and less prone to errors arising from interpolating between marks on the scale or from mis-recording. The readout is also continuous; so angles can be checked at any time.

Necessary Accessories to be used with Total Stations:

Prism: Single prism and triple prism
The other part of a total station, the electronic distance measuring device or EDM, measures the distance from the instrument to its target. The EDM sends out an infrared beam which is reflected back to the unit, and the unit uses timing measurements to calculate the distance traveled by the beam. With few exceptions, the EDM requires that the target be highly reflective, and a reflecting prism is normally used as the target. The reflecting prism is a cylindrical device about the diameter of a soft-drink can and about 10 cm. in height; at one end is a glass covering plate and at the other is a truncated cone with a threaded extension. It is normally screwed into a target/bracket on the top of a pole; the pointed tip of the pole is placed on the points to be surveyed.

QTS-7002 Total Station (2" Accuracy)

• Accuracy: 2”, Minimum Reading: 1"/5"
• Quick and Reliable Measurement
• Advanced Double-side Touch panel Large LCD display with Backlight
• Data Input System, with Open Communication
• Onboard large storage capacity of 10,000 readings
• Laser Plummet and spare battery included as standard accessory
• Maximum Display: Eleven Digits 9999999.999m
• Conversion of Metric to Imperial units
• 2 Year Warranty
• Two Modes for function key input: touching mode or key press mode
• Individual function allocations for easy functions management
• File management system simulate with Windows memory.
• Rear double communication port
• Extended operating time of up to 8 hours with one battery

QTS-802 Total Station (2" Accuracy)

• Accuracy: 2”, Minimum Reading: 1"/5"
• Quick and Reliable Measurement
• Advanced Double-side LCD display with Back Light
• Data Input System, with Open Communication
• Onboard large storage capacity of 8,000 readings
• Laser Plummet and spare battery included as standard accessory
• Maximum Display: Eleven Digits 9999999.999m
• Conversion of Metric to Imperial units
• 2 Year Warranty
• Angle and Distance Measurement with a push of a button
• Two way PC communication
• Automatic compensation for vertical angle
• Includes software & connecting cable
• Water resistant

QTS-6082 Total Station (2" Accuracy)

• Advanced Total Station unit
• Economical with excellent Price/Quality ratio
• User-friendly
• Large LCD Display
• Expanded display with 7 digit indication (before decimal point)
• Direct data port
• Advanced measurement program
• Easy to manage data
• Open communication mode
• Reliable construction and advanced design of the instrument guarantee the instrument's high accuracy
• Laser plummet as standard accessory
• 2 Year warranty included

For Pricing & Product info, please CLICK HERE

• Top of the Line and easy to use Total Station
• Economical with excellent Price/Quality ratio
• RS-232C interface
• Expanded display with 7 digit indication (before decimal point)
• Double readings, automaticlly eliminate the circle eccentric error
• Coaxial tangent screw
• Double focusing for telescope, fast focusing
• IEC529, IP54 grade
• Laser plummet as standard accessory
• 2 Year warranty included