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Spectra UL633 Universal Grade Laser

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  • 2,600 foot operating range

  • Self-leveling

  • Grade range to ±25% in X,Y,Z axes

  • Automatic axis alignment

  • Choice of receiver and plumb beam detector

  • Grade matching and PlaneLok

  • 40-hour battery life

  • Water resistant and dustproof to IP-67

  • Graphic LCD display and keypad

  • 5/8-11 tripod thread

Availability: In stock


Overview for the Spectra UL633 Universal Grade Laser

The Spectra UL633 is the first construction grade laser that offers full automatic control of the X, Y, Z axes. With long range operation up to 2,600 feet, this rotary laser provides precise automatic axis alignment, PlaneLok and grade matching capabilities. It also includes an HL750 laser receiver that provides digital readout and offers basic and advanced leveling and aligning applications. 

Total Control of the Three Axes

With self-leveling accuracy of 1/16th inch and fully automatic to +/-25% grade on all X,Y and Z axes, the versatile UL633 is suitable for both simple and complex grade and concrete work. This Spectra laser facilitates control of the Z axis via automatic detection of the plumb beam, while control of the X and Y axis utilizes a dual radio connection.

It also features automatic axis alignment that enables construction professionals to align the laser to within +/-40° at the desired axis to easily perform axis alignments in general construction, site preparation, road construction and machine control. You can also mount this device on a 5/8-11 tripod in a vertical or horizontal position.

Spectra HL750 Laser Receiver

The included HL750 laser receiver provides a digital readout of elevation and features an anti-strobe detector that prevents false readings from site strobe lights. The readout is displayed on its large front and rear LCDs and shows exactly how far the elevation is from on-grade. Accurate measurements can be made without moving the rod clamp and selectable units of measure can be displayed in millimeter, centimeter, feet, inches or fractional inches.

Wireless communication between the HL750 laser detector and the UL633 laser provides automatic grade matching, which allows measurement of unknown grade values between two points. For applications that require maximum stability and accuracy, the PlaneLok feature is available in both horizontal and vertical planes and automatically locks the beam on the receiver and keeps it on grade, reducing typical environmental factors that may cause an error.

Additional Features

The UL633 incorporates automatic temperature and grade compensation for high accuracy in any weather or geographical location. Mask mode eliminates interference and allows the use of multiple lasers onsite, while electronic leveling vibration filter reduces vibrations typically experienced on tall tripods, in high winds or on high vibration jobsites. This laser level also includes a combined radio and infrared RC603 remote control with a built-in backlit, graphic display that allows you to control the laser up to 330 feet away.

With an IP67 rating, the UL633 is sealed from moisture and dust and is built to survive a drop of up to three feet high on concrete. This dual grade slope laser works up to 35 hours using rechargeable NiMH batteries and approximately 40 hours using alkaline batteries.

This Spectra universal grade laser package comes with an HL750 laser receiver, RC603 remote control, rod clamp, hard carrying case, rechargeable NiMH battery pack, charger and a 5-year manufacturer's warranty.

Features for the Spectra UL633 Universal Grade Laser

  • 2,600 foot operating range
  • Self-leveling
  • Grade range to ±25 % in X,Y,Z axes
  • Automatic axis alignment
  • HL750 laser receiver
  • Grade matching measures and displays the existing grade 
  • PlaneLok automatically locks on the laser beam
  • Horizontal angle measurement
  • Automatic Spot Align for short pipe laying applications
  • Scan mode with five preset sizes and variable adjustment
  • Different rotation modes
  • Mask mode for using multiple lasers onsite
  • Electronic leveling vibration filter
  • Automatic temperature compensation 
  • Radio remote control
  • Ideal for machine control applications
  • 5/8-11 tripod thread
  • 40-hour battery life
  • Water resistant and dustproof to IP-67
  • Withstands a 3 feet drop onto concrete 
  • Graphic LCD display and keypad

Specifications for the Spectra UL633 Universal Grade Laser

Color Red
Wavelength 650 nm
Classification Class 3A/3R
Visibility Visible
Exterior 2,600 ft (792 m)
Self Leveling ± 14°
Battery Life with Rechargeable Battery Pack 35 hours
Battery Life with Alkaline Batteries 40 hours
Power Source NiMH or alkaline batteries
Battery Life Alert yes
Automatic Shut-Off yes
Display Backlit, graphic LCD
Drop Damage Protection 3 ft onto concrete
Protection Class IP67 (dustproof and water submersible)
Tripod Adapter (Center Screw Thread) 5/8 -11 horizontal and vertical
Detecting Indicator LCD indications and LED flashes
Adjustable Rotating Speed 0 - 900 rpm
Weight 6.8 lbs (3.1 kg)
Warranty 5-year
Remote Control Operating Distance 330 ft (100 m)
Extra Technology
Remote Control RC603
Detector/Reciever HL750
Horizontal 1/16” per 100 ft (1.5 mm per 30 m)
Storage -4°F to +158°F (-20° to +70°C)
Operating -4°F to +122°F (-20 °C to +50 °C)
Charging Time 10 hours
Slope Match yes
Grade Operation Automatic
Automatic Leveling yes
Beam Operating Modes Beam masking
Scanning Modes Five preset sizes and variable adjustment
Checking/Setting Elevations yes
Transferring Points from Floor to Ceiling yes
Machine Control of Excavators, Graders, Dozers or Similar Equipment yes
Installation of Interior Fittings (cabinets, lighting, windows, countertops, etc.) yes
Short-Range Leveling for Decks, Patios & Swimming Pools yes
Installation/Leveling Interior Walls yes
Installation/Leveling Ceiling Grids yes
Squaring and Layout of Partitions, Walls & Tile Floors yes
Concrete Forms, Footings and Foundations yes
Plumb Reference yes
Checking Elevations of Sub-Base and Sub-Grade yes
Short-Run Vertical Alignment yes
Checking Building Square & Area yes
Estimating Cut & Fill yes
Matching Existing Slope & Grade yes
Locating Finished Floor Levels yes
Type Universal
Percentage ± 25% (X,Y,Z axes)
Accuracy 1/8” per 100 ft. (3.0 mm per 30 m)

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