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CLS Series Forklift Scale

Scale Carriage

  • 28 in (Class II), 5,000 x 5 lbs, NTEP Certified
  • 34 in (Class II), 5,000 x 5 lbs, NTEP Certified
  • 38 in (Class III), 8,000 x 5 lbs, non-NTEP
  • 1-1/2 in thick front and back painted steel plates coupled by four flexures
  • Top cleats are welded, pinned and bolted
  • Welded centering pin
  • Two 5,000 lb S-Beam load cells
  • iQUBE2® junction box with inclinometer
  • Molded coiled cable, up to 15 ft uncoiled

Presale Requirements

  • Provide completed forklift questionnaire for quotation
  • Compatible with most Class II and Class III forklift attachments, consult factory

Required System Information

  • Forklift carriage size (Class II, Class III, Other)
  • Forklift carriage width (Is it greater than 36 in?)
  • Does the forklift have a load backrest?
  • Does the forklift have any existing attachments?
  • Supply power for scale instrumentation (12 VDC, Other)
  • Maximum mast extension (Under 180 in, Other)
  • Any peripheral equipment needed (Example: Printer)

Installation Recommendations

  • When installing a forklift scale on an electric forklift, static discharge protection must be present on the forklift and install a chassis mount power conditioner to protect scale electronics.
  • When installing a forklift scale, OSHA requires the end user to de-rate the lift capacity of the forklift.


Some approval documents are available to view by clicking the icons below.

NTEP Logo LOGO Measurementcanada Approved BW

WARNING: Cancer and Reproductive Harm California Proposition 65

Lift Profits, Lower Logistics Expenses

The CLS Series forklift scale mounts directly to most Class II and Class III forklifts, saving material handling processes time and money. The CLS can be paired with a device for weight display through a cable or cableless connection. The weight display can either be a Rice Lake Weighing Systems indicator designed for the CLS or virtually through a device that supports the VIRTUi3 software application. For connection to peripheral equipment, there is also optional USB, Bluetooth and Wi-Fi connection available.

Two-year limited warranty

NTEP CC 06-074
Measurement Canada AM-5893


CLS Dimensions Class II
28 in, 5,000 lb
A 28.00 in (711 mm) E 19.50 in (495 mm)
B 30.00 in (762 mm) F 4.49 in (114 mm)
C 16.00 in (406 mm) G 21.80 in (554 mm)
D 16.29 in (414 mm) H 28.24 in (717 mm)
34 in, 5,000 lb
A 34.00 in (864 mm) E 19.50 in (495 mm)
B 36.00 in (914 mm) F 4.49 in (114 mm)
C 16.00 in (406 mm) G 21.80 in (556 mm)
D 16.29 in (413 mm) H 34.24 in (870 mm)
CLS Dimensions Class III
38 in, 8,000 lb
A 38.00 in (965 mm) E 24.50 in (622 mm)
B 40.00 in (622 mm) F 6.04 in (153 mm)
C 20.00 in (508 mm) G 26.68 in (678 mm)
D 20.15 in (512 mm) H 38.00 in (965 mm)



The CLS-680 was designed from the ground-up specifically for forklift applications. With a machined aluminum anodized enclosure, the CLS-680 is ideal for demanding, general-purpose forklift applications. Its compact size is attached with a RAM® mount for flexible positioning and minimal obstruction. Additional features include rounded corners, vibration protection and surge suppression.

  • Machined aluminum enclosure with anodized finish
  • Six-digit, seven-segment LED display
  • Battery backed time & date
  • On/Off power switch
  • 9-36 VDC power supply
  • Cabled or cable-less
  • RS-232 serial port
  • Wi-Fi
  • Bluetooth®


The CLS-920i is a version of the 920i specifically designed for the CLS. It incorporates the flexibility, intelligence and programmability of the 920i in a smaller enclosure with a DC power supply for use on forklifts. The standard program offers weight indication, configuration, calibration and diagnostics specific to the CLS. Customize it for your application with an optional user program.

  • Painted mild steel enclosure
  • Backlit graphical LCD display
  • Battery backed time and date
  • On/Off power switch
  • 10-60 VDC power supply
  • Cabled or cable-less
  • Two available RS-232 ports for added options
  • Optional Wi-Fi
  • Optional Bluetooth®


Weight data is displayed on a device using VIRTUi3 software, creating a virtual indicator. The CLS connects to your device using RS-232, USB or Bluetooth®. Choose between the CLS-M or CLS-IM configuration for static or in-motion use.

  • Weight indication device (PC/tablet) is not included.
  • Consult factory to verify compatibility with your device.
  • Bluetooth® connection available
  • USB connection available


The cableless option removes the coiled communication/power cable between the scale and the indicator. A rechargeable battery is secured to the scale and it powers the scale and the paired wireless modules provide communication.

  • 802.15 wireless interface
  • Lithium-ion battery and charger
  • On/Off power switch
  • Battery life: 24 hours of constant use
  • Battery recharge time: 8 hours to fully recharge
  • Reinforced battery box welded to top cover


Wi-Fi is a standard feature for the CLS-680 and is available as a factory installed option for the CLS-920i.

  • Wireless LAN card 802.11 B/G
  • Range: Up to 328 ft indoors
  • Operating frequency: ISM 2.4 GHz


Bluetooth® communication is a standard feature for the CLS-680 and is available as an external option for the 920i. It is also available in a communications/power box for the virtual solution.

During the initial scale installation, remind the customer that they must have an updated ID plate on the forklift stating the new lifting capacity and center of gravity information. This is required per OSHA rules and regulations.

. 28 Inch 34 Inch 38 Inch
Vertical center of gravity (VCG) of scale = 8.06 8.06 10.15
Horizontal center of gravity (HCG) of scale = 2.09 2.09 2.83
Effective thickness (ET) of scale = 4.55 4.55 6.06
Weight of scale = 392 420 987

Resources / Downloads

Title View Email Category Type
Forklift Scale Buyer’s Guide Email Forklift Articles

Title Download Email
CLS Series Catalog Page Download Email

Title Version Revision Download Email Category Archived
CLS Series Forklift Scale Installation Manual A Download Email Forklift No
Cargo Lift Scale Series Wired to Wireless Conversion Instructions Addendum B Download Email Forklift No
CLS-Series Service Manual A Download Email Forklift No

Title Download Email
Forklift Scales Questionnaire Download Email

Title Collateral Wizard Request Download Email Category
CLS Series Forklift Scales Request Download Email
CLS-IM In Motion Forklift Scale Download Email
Forklift Scales Guide to Selling Request Download Email

Title Version Size Release Date Download Email
CLS-IM Firmware 1.15.06 168 KB 06/15/2021 Download Email
CLS-680 Firmware 1.02.00 325 KB 06/03/2021 Download Email
CLS-920i Firmware 1.04.00 708.5 KB 09/28/2021 Download Email

Title View Download Email Category
Weigh, Transfer and Collect Data with Forklift Scales View Download Email
CLS Cargo Lift Scale Installation View Download Email Forklift


CLS Forklift Scale, CLS-680

Part # Description List Price Cart
201300 Scale PKG,CLS-680 5000lb Capacity, Class II, 34", Wired, 9-36VDC, WiFi/Bluetooth, RAM Mount, Mode 600, 5000x5lb NTEP

List Price: $8,260.00

Call for price

CLS Forklift Scale, CLS-920i

CLS Forklift Scale, VIRTUi3 Static

CLS Forklift Scale, VIRTUi3 In Motion


Part # Description List Price Cart
166161 Power Line Filter, CLS DC EMI FIlter, 0-75 VDC input voltage, 100 Vdc surge.

List Price: $95.00

167498 Cable,Extension 2 Meters 125395 Coiled Cable Extension, Straight, Molded Turk PN BSM BKM 5-084-2

List Price: $160.00

188193 CLS Calibration Hook Set

List Price: $245.00

120160 Weight, 1000lb Forklift Testing 22-1/2 x 46-1/4 Rectangle Steel Class 6

List Price: $2,407.00

120162 Weight, 2000lb Forklift Testing 22-1/2 x 46-1/4 Rectangle Steel Class 6

List Price: $7,149.00

Consult 28 in wide scale base for Class II carriage instead of 34 in Class II scale base

Call for price

Consult 38 in wide scale base for Class III carriage instead of 34 in Class II scale base (Non NTEP certified)

List Price: $2,700.00

Consult Cableless option, order upgrade that also includes two batteries and charger

List Price: $1,650.00

Consult Bluetooth Option for CLS-680

Call for price

Consult Bluetooth Option for CLS-920i

List Price: $495.00

Consult Bluetooth Option for VIRTUi CLS-M/IM

List Price: $695.00

Consult WiFi option for CLS-680

Call for price

Consult WiFi option for CLS-920i

List Price: $650.00

Consult DC to DC converter, chassis mount

List Price: $140.00

Replacement Parts

Replacement parts can only be purchased through trained and authorized dealers. You must be logged in as a dealer to view any available replacement parts.

To locate a dealer in your area, please call us at 1-800-472-6703 or fill out a request online.

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