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Tribrachs

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Just because you can't remember doesn't mean your Tribrach won't.

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Bayonet Tipped Rotatable Tribrach without Optical Plummet

PN: RT482W-BLK

  • Without optical plummet

  • Bayonet tip

  • Height 100 mm

  • Vial 45″/2 mm

  • Weighs 1.21 lb (0.55 kg)

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Bayonet Tip, Rotatable Tribrach with Optical Plummet

PN: RT482WON-BLK

  • Rotatable prism holder, with optical plummet

  • Bayonet style tip

  • Vial Sensitivity 45″/2 mm

  • Height 100 mm

  • Accuracy: 0.5 mm/1.5 m

  • Image: Erect

  • Magnification: 2x

  • Operating Temperature: -20°C to +50°C

  • Shortest focal distance: 0.35 mm

  • Weighs 1.41 lb (0.64 kg)

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Fixed Tribrach Adapter

PN: FPT146-BLK

  • 5/8 x 11 Stud, fixed

  • Height: 145.5 mm

  • Weighs 1.10 lb (0.50 kg)

Laser Tribrach

PN: 2153-02-BLK

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  • Bright 650-nm focused laser dot

  • Circular vial w/ 8-minute sensitivity

  • Standard three-prong forced centering with center lines

  • Included is a standard 3 volt CR2 lithium battery

  • Weighs 1.65 lb (0.75 kg)

Optical Plummet Twist Focus Tribrach

PN: 2152-04

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  • The Optical Plummet Twist Focus Tribrach features twist focus (2.5X mag) and leveling screws with center line

  • Features an 8-min vial, three-prong forced centering and a 5/8 x 11 base

  • This tribrach has a focusing range of 1.5 to 50 feet (0.5 to 15 m)

  • Comes in Black, Gray, or Yellow

  • Weighs 1.85 lb (0.84 kg)

Swiss-Style Rotatable Tribrach with Optical Plummet

PN: RT481WON-BLK

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  • Rotatable prism holder, with optical plummet

  • Shortest focal distance: 0.35 mm

  • Operating Temperature: -20°C to +50°C

  • Magnification: 2x

  • Image: Erect

  • Height: 136.2 mm

  • Accuracy: 0.5 mm/1.5 m

  • Vial Sensitivity 45″/2 mm

  • Swiss-Style quick lock pin

  • Weighs 1.41 lb (0.64 kg)

Traverse Tribrach Adapter and GPS Carrier

PN: FPT144-BLK

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  • Swiss-Style locking pin

  • Height: 136.2 mm

  • Weighs 0.88 lb (0.40 kg)

Ask about our complete line!

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5/8 x 11 Stud Rotatable Tribrach without Optical Plummet

PN: RT484W-BLK

  • Without optical plummet

  • 5/8 x 11 threaded stud

  • Height 70 mm

  • Weighs 1.06 lb (0.48 kg)

European-Style Tribrach with Optical Plummet

PN: 2152-05-BLK

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  • This high-quality tribrach features an optical plummet and 2X magnification and a twist focus

  • Its reticule is composed of two small concentric circles

  • With a sighting distance of 0.3 m to 15 m, the tribrach has an accuracy of 0.5 mm per 1.5 m

  • Locking forced-centering knob and a 5/8 x 11 base and an 8-minute circular vial

  • Weighs 1.55 lb (0.70 kg)

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High Precision Red Laser Tribrach

PN: 2154-02-BLK

  • Up to 7 hours of continuous operation without battery charge or replacement!

  • One rechargeable, replaceable battery pack is included (Other battery packs available, sold separately) 500mAh Li-Po battery

  • Battery level indication

  • High contrast laser dot

  • Laser dot size: 1.5mm over 1.5 meters or equivalent in imperial

  • 1mm at 1.5m centering accuracy

  • Micro USB charging, cable included

  • 3cc (1 arc sec) Geodesy by Seco MOM Tribrach

  • 8’ vial

  • Operating temperature -10C – +50C (14F – 122F)

  • Laser class: Class 1M laser

  • Charge temp: 0°C – 45°C

  • Operating temperature -10C – +50C (14F -122F)

  • Operating height: 0.3m-5m operation

  • Vial: 8’ circular

  • Connection: 5/8 x 11

  • IP 65 ruggedness rating

Standard Precision Optical Plummet 

PN: 2152-07-BLK

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  • SECO now offers Geodesy-MOM tribrachs in two different models; our High-Precision tribrach and now the Standard-Precision tribrach

  • European-made with an effortless locking mechanism for fast and solid tripod connection

  • A center line on each of the leveling screws allows the user to balance the lengths of the leveling screws

  • All tribrachs feature 5/8 x 11 threaded base plates and 8-minute circular vials

  • High-precision tribrachs feature an error in angle measurement (hysteresis) is under 3 cc (60 Ncm torsion moment and 12 kg vertical load), standard tribrach is 5 cc

  • The 2152-06-BLK has a shortest focus distance of 0.35 m and an accuracy of 0.5 mm / 1.5 m

  • Features 2X magnification and an erect image

  • Operating temperature is -20ºC to +50ºC (-4ºF to +122ºF)

Swiss-Style, Rotatable Tribrach without Optical Plummet

PN: RT481W-BLK

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  • Rotatable prism holder, without optical plummet

  • Swiss-Style quick lock pin

  • Height 136.2 mm

  • Vial 45″/2 mm

  • Weighs 1.21 lb (0.55 kg)

Tribrach W/O Optical Plummet

PN: 2153-04-BLK

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  • This tribrach has a focusing range of 1.5 to 50 ft (0.5 to 15 m)

  • Three screw-leveling with center line

  • Comes without optical plummet

  • 8-minute circular vial

  • 5/8 x 11 base thread

  • Black

  • Weighs 1.66 lb (0.75 kg)

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