Quick Answer
What is the Spectra Precision CR600?
See also: Spectra HR550 Receiver Specs
See also: Spectra LL300N Laser Level
The Spectra Precision CR600 is a digital grade rod that pairs with Spectra HR550-compatible lasers to display cut/fill values directly on the rod, eliminating manual reading calculations.
Spectra Precision CR600 — Complete Specs, Manual & Guide
Category: Grade Rod | Brand: Spectra Precision | Model: CR600
The Spectra Precision CR600 is a digital self-reading grade rod designed for use with the HR550 receiver and compatible lasers including the Spectra LL300N, LL500, and Leica Rugby 680. It displays cut/fill or elevation information directly on the rod face, allowing one-person grade checking without back-sight calculations.
Spectra Precision CR600 Full Specifications
| Rod type | Fiberglass telescoping, graduated in feet/inches and metric |
| Extended length | 25 feet (7.6m) |
| Collapsed length | 6 feet (1.8m) |
| Compatible receiver | Spectra HR550 (mounts in integrated bracket) |
| Display | LCD cut/fill display on rod face |
| Graduation | 0.01 foot and 1mm |
| Weight | 2.3 kg (5.1 lbs) extended |
| Material | Fiberglass with UV-stabilized coating |
Compatible Receivers
- Spectra HR550 — Required for digital cut/fill display. Mounts in integrated receiver bracket.
- Spectra HR320 — Compatible for on/off detection — no digital display.
- Topcon LS-80L — Compatible via 635nm wavelength for on/off detection only.
Accessories & Part Numbers
- HR550 — Digital receiver for CR600 — required for digital display functionality
- CR600-CS — Replacement carrying case
- CR600-TIP — Hardened steel rod tip (replacement)
Frequently Asked Questions — Spectra Precision CR600
What laser works with the Spectra CR600 grade rod?
The CR600 pairs with any laser compatible with the Spectra HR550 receiver. This includes the Spectra LL300N, LL500, HV301, and Leica Rugby 620/640/680 series. The laser beam must be 635nm red wavelength.
How does the CR600 display cut and fill?
When the HR550 receiver mounted on the CR600 detects the laser beam, the receiver calculates the offset between the beam and a preset reference elevation. The CR600's LCD display shows whether to cut or fill and by how much, in increments of 0.01 feet or 1mm.
Can the CR600 work without the HR550 receiver?
The CR600 functions as a standard graduated rod without the HR550. The digital display feature requires the HR550 receiver. Basic on/off indication can be obtained with any 635nm receiver mounted in the CR600 bracket, but numeric cut/fill values require the HR550.
What is the maximum length of the Spectra CR600?
The CR600 extends to 25 feet (7.6 meters), covering typical grade rod requirements for site grading, curb setting, and foundation layout. It collapses to 6 feet for transport.
Related models: Spectra HR550 Receiver | Spectra LL500 Laser
Track your CR600 calibration dates, service history, and field verification records with Gradelog's Equipment Registry. Free to start at gradelog.com.
