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Self-Leveling Rotary Lasers
The Short Answer
A self-leveling rotary laser levels itself electronically or via pendulum within a set range (typically ±5°), then spins a reference beam a receiver reads anywhere on site — the modern standard for slabs, pads, footings, and elevation control. The most-used models are the Topcon RL-H5A, Spectra Precision LL300N, Leica Rugby series, and Bosch Revolve line, all stocked at Express Tools.
Self-leveling is what made rotary lasers one-person tools: set the laser on a tripod roughly level, and it dials itself in and re-levels automatically after bumps — with height-alert protection that stops the beam rather than feed you a wrong grade if the tripod gets knocked.
The practical differences between models are range, battery life, drop rating, and the receiver bundled in the package — the table stakes (self-leveling, ±1/16 in accuracy class) are shared across the professional field.
Self-Leveling Rotary Lasers In Stock
Topcon
Topcon Machine Control Kit with RL-HV2S Self-Leveling Dual Grade Laser, Deluxe LS-100D Receiver, Inch Rod, Tripod / Rechargeable - Machine Receiver and Magnetic Mount - Model 1051612-22-K2-LS-B200W-MM
Starting at
$4,695
Topcon
Topcon HYBRID RL-HV2S Self-Leveling Dual Grade Laser Complete Kit Deluxe Spectra HL760 Receiver, Inches Rod and Tripod / Rechargeable - 1051612-22-K2-PRO
Starting at
$2,650
Topcon
Topcon HYBRID RL-HV2S Self-Leveling Dual Grade Laser Complete Kit with Spectra HL760 Deluxe Receiver, Tenths Rod and Tripod / Rechargeable - 1051612-22-K1-PRO
Starting at
$2,650
Topcon
Topcon HYBRID RL-HV2S Self-Leveling Dual Grade Laser Kit Deluxe Spectra HL760 Receiver, Rechargeable - 1051612-22-PRO
Starting at
$2,450
Topcon
Topcon RL-HV2S Self-Leveling Dual Grade Laser Complete Kit with LS-100D Receiver, Tenths Rod and Tripod / Rechargeable - 1051612-22-K1
Starting at
$2,450
Topcon
Topcon RL-HV2S Self-Leveling Dual Grade Laser Complete Kit with LS-100D Receiver, Inches Rod and Tripod / Rechargeable - 1051612-22-K2
Starting at
$2,450
Topcon
Topcon RL-HV2S Self-Leveling Dual Grade Laser RB Kit with LS-100D Receiver and Rechargeable Batteries- 1051612-22
Starting at
$2,295
Topcon
Topcon RL-HV2S Self-Leveling Dual Grade Laser RB Kit with LS-100D Receiver and Rechargeable Batteries- 1051612-02
Starting at
$2,295
Topcon
Topcon RL-HV2S Self-Leveling Dual Grade Laser RB Kit with LS-100D Receiver and ALKALINE Batteries- 1051612-22A
Starting at
$2,295
Topcon
Topcon RL-HV2S Self-Leveling Dual Grade Laser DB Kit with LS-80X Receiver, Tenths Rod and Tripod / Alkaline - 1051612-21-K1
Starting at
$2,195
Topcon
Topcon RL-HV2S Self-Leveling Dual Grade Laser DB Kit with LS-80X Receiver, Inches Rod and Tripod / Alkaline - 1051612-21-K2
Starting at
$2,195
Topcon
Topcon RL-SV2S Self-Leveling Dual Grade Laser RB Kit with LS-80X Receiver and Rechargeable Batteries- 313990738
Starting at
$2,150
Bosch
BOSCH GRL4000-80CHK REVOLVE4000 Dual Grade Self-Leveling Laser Package
Starting at
$2,149
Bosch
BOSCH GRL4000-80CHV REVOLVE4000 Dual Grade Self-Leveling Laser Kit
Starting at
$2,149
Topcon
Topcon RL-HV2S Self-Leveling Dual Grade Laser DB Kit with LS-80X Receiver and Alkaline Batteries- 1051612-21
Starting at
$2,050
Bosch
BOSCH GRL4000-80CH REVOLVE4000 Dual Grade Self-Leveling Laser Package
Starting at
$2,049
Topcon
Topcon RL-SV2S Self-Leveling Dual Grade Laser RB Kit with LS-100D Receiver and Rechargeable Batteries- 313990772
Starting at
$1,975
Topcon
Topcon RL-SV2S Self-Leveling Dual Grade Laser RB Kit with LS-100D Receiver and Rechargeable Batteries- 313990778
Starting at
$1,975
Topcon
Topcon RL-HV2S-BCC Self-Leveling Dual Grade Laser RB Kit with No Receiver, Carrying Case Included - 1051612-BCC
Starting at
$1,950
Topcon
Topcon RL-HV2S Self-Leveling Dual Grade Laser DB Kit with LS-80X Receiver and Alkaline Batteries- 1051612-01
Starting at
$1,895
Bosch
BOSCH GRL4000-80CHVK REVOLVE4000 Dual Grade Self-Leveling Laser Package
Starting at
$1,895
Topcon
Topcon RL-HV2S-BL Self-Leveling Dual Grade Laser DB Kit - Powered by Alkaline Batteries (1051612-BL) LASER ONLY
Starting at
$1,850
Topcon
Topcon RL-HV1S Self-Leveling Single Grade Laser RB Kit with LS-100D Receiver and Rechargeable Batteries- 1051612-29
Starting at
$1,820
Topcon
Topcon RL-HV1S Self-Leveling Single Grade Laser RB Kit with LS-100D Receiver and Rechargeable Batteries- 1051612-09
Starting at
$1,820
Topcon
Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit with LS-80L Receiver and Rechargeable Batteries- 313990709
Starting at
$1,795
Topcon
Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit with LS-100D Deluxe Receiver and Rechargeable Batteries 313990779
Starting at
$1,795
Topcon
Topcon RL-SV2S Self-Leveling Dual Grade Laser DB Kit with LS-80L Receiver - 313990752 (uses and Alkaline Batteries)
Starting at
$1,785
Topcon
Topcon RL-SV2S Self-Leveling Dual Grade Laser DB Kit with LS-80L Receiver and Alkaline Batteries- 313990758
Starting at
$1,785
Topcon
Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit with LS-100D Deluxe Receiver and Rechargeable Batteries 313990776
Starting at
$1,775
Topcon
Topcon RL-HV1S Self-Leveling Single Grade Laser DB Kit with LS-80X Receiver and Alkaline Batteries- 1051612-28
Starting at
$1,695
Topcon
Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit with LS-80L Receiver and Rechargeable Batteries- 313990706
Starting at
$1,695
Topcon
Topcon RL-SV1S Self-Leveling Single Grade Laser DB Kit with LS-80X Receiver and Alkaline Batteries- 313990749
Starting at
$1,625
Topcon
Topcon RL-SV1S Self-Leveling Single Grade Laser DB Kit with LS-80L Receiver and Alkaline Batteries- 313990756
Starting at
$1,625
Topcon
Topcon RL-SV1S Self-Leveling Single Grade Laser DB Kit with LS-80L Receiver - 313990759 (uses Alkaline Batteries)
Starting at
$1,625
Topcon
RL-H5A Self-Leveling Laser Kit with LS-B20 Multi-Use Receiver with Rod Bracket and Magnetic Mount 1021200-LSB20
Starting at
$1,395
Topcon
RL-H5A Self-Leveling Laser PS.RB Kit with LS-100D Receiver, Rechargeable Batteries, Grade Rod 10ths and Tripod - 1021200-16-K1
Starting at
$1,176
Topcon
RL-H5A Self-Leveling Laser PS.RB Kit with LS-100D Receiver, Rechargeable Batteries, Grade Rod INCHES and Tripod - 1021200-16-K2
Starting at
$1,176
Topcon
RL-H5A Self-Leveling Laser PS.DB Kit with LS-100D Receiver, Grade Rod INCHES and Tripod - 1021200-17-K2
Starting at
$1,165
Topcon
RL-H5A Self-Leveling Laser PS.DB Kit with LS-100D Receiver, Alkaline Batteries, Grade Rod TENTHS and Tripod - 1021200-17-K1
Starting at
$1,065
Topcon
Topcon RL-H5A Self-Leveling Laser PS.DB2 Kit with LS-80X Receiver, Measuring Rod INCHES and Tripod - 1021200-49-K2 (RECHARGEABLE)
Starting at
$1,050
Topcon
Topcon RL-H5A Self-Leveling Laser PS.DB 1021200-49-K1 with LS-80X Receiver, Measuring Rod 10ths and Tripod - RECHARGEABLE
Starting at
$1,050
Topcon
Topcon RL-H4C Self-Leveling Laser RB Kit with LS-100D Receiver and Rechargeable Batteries- 313980772
Starting at
$966
Topcon
RL-H5A Self-Leveling Laser PS.RB Kit with LS-100D Receiver and Rechargeable Batteries- 1021200-16
Starting at
$945
Topcon
RL-H5A Self-Leveling Laser PS.RB Kit with LS-100D Receiver and Rechargeable Batteries- 1021200-08
Starting at
$925
Topcon
Topcon RL-H5A Self-Leveling Laser PS.RB Kit with LS-80L Receiver, Rechargeable Batteries, Measuring Rod 10ths and Tripod - 1021200-06-K1
Starting at
$925
Topcon
Topcon RL-H5A Self-Leveling Laser PS.RB Kit with LS-80L Receiver, Rechargeable Batteries, Measuring Rod INCHES and Tripod - 1021200-06-K2
Starting at
$925
Topcon
Topcon RL-H4C-Kit Self-Leveling Laser DB Kit with LS-80L Receiver TENTHS-ROD and Tripod - 313980752-1
Starting at
$906.5
Topcon
Topcon RL-H4C-KIT Self-Leveling Laser DB Kit with LS-80L Receiver INCHES-Rod and Tripod - 313980752-2
Starting at
$906.5
Frequently Asked Questions
How does a self-leveling rotary laser work?
Inside the housing, a pendulum-and-servo or electronic tilt-sensor system trues the rotating beam to level once you get the instrument within its compensation range (about ±5° by eye). If the laser is bumped past that range, it stops and alerts instead of projecting a bad plane.
What is the best self-leveling rotary laser?
The Topcon RL-H5A is the best-selling choice — 800 m (2,600 ft) working diameter, ~100-hour battery life, IP66. The Spectra LL300N is its equal for most crews with a tougher roll cage and strong package pricing. Leica Rugby and Bosch Revolve round out the professional field. Match range and package contents to your sites.
What does "height alert" or "HI alert" mean?
If the tripod settles or gets bumped after setup, the laser’s height changes and every reading after that is silently wrong. Height-alert systems detect the disturbance and shut the beam off, forcing a re-check — a small feature that prevents expensive re-pours and re-grades.
How do I keep records of the grades I shoot?
Log each check — location, design grade, actual reading — as you go. Gradelog, our field documentation app, records grade shots with GPS, photos, and automatic pass/fail and turns them into inspector-ready reports. There is a free plan for small crews.
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