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Have your eye on Topcon's Green Beam® technology but think you can't afford it? Well, the TP-L4BG is the pipe laser for you. In fact, Topcon's TP-L4BG offers you the industry's only Green Beam® technology at prices lower than other red beam lasers.


  • GreenBeam® technology
  • Automatic line centering and grade zeroing.
  • RC-200 radio remote for complete control of all TP-L4BG functions from up to 660 feet away.
  • Industry's brightest LED line pivot locator.
  • Bright, easy-to-read rear display.
  • All metal, waterproof housing so you know it'll survive even under the toughest conditions.

Technical Specifications

horizontal ± 10" arc seconds
temperature drift 1"/C arc seconds per degree C
type 532 nanometers, Green Beam™ diode
power IIIa class, 4.5 miliwatt
Operating Range
laser 5 to 150 meters
line range ±15%
range -15% to +40%
remote control operation 200 meters from front (in pipe), 45 from behind
Line Control
width ±15% degrees
mechanical system Absolute encoder
self leveling range ±10% degrees
line centering yes auto
grade zeroing yes auto
plumb reference LED
source 4 D NiMH standard, 4 D-Size Alkaline optional
aproximate battery life 45 standard hours, 32 optional hours
Operating Temperature -20° to +50° Celsius, 4° to +122° Fahrenheit
Waterproof At least 16.5 ft (5 m) for 24 hours
Waterproof At least 16.5 ft (5 m) for 24 hours
Dimensions (LxWxH) 4.9" x 14.7" inches, 125 x 374 Millimeters
Weight 8.21 pounds, 3.8 kg
Optional features
Rolling Indication yes indication, ±4 range

Topcon's innovative Green Beam® technology gives you the advantage of a beam that's four times brighter than conventional beams. That means you never lose track of it - even in direct sunlight! With the TP-L4BG Green Beam® setups are faster and easier than ever before.


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Send us an email or give us a call on +91 120 4316111