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Highly versatile transmitter unit for cranes, lifting equipment and machines. Advanced dual-processor electronics protected in an ergonomic and robust housing for demanding radio remote control solutions in industrial environments.

  • For control of motors with digital or analogue drive systems
  • Displays important feedback information onto a graphic LCD or via status LEDs
  • High safety-class through redundant hardware and software architecture
  • Suited for applications requiring
  • EN ISO 13849-1 Performance Level d
  • Approvals and frequencies for worldwide deployment
  • Application-specific transmitter layout
  • Housing made of high impact-resistant polycarbonate resin
  • Reverse-engraved front plate – extremely hard wearing for use in industrial environments
  • Compatible with a number of receiver units, featuring various interface options
  • System configuration via easy accessible TransKey

The transmitter is supplied with a cushioned waist belt or as option with a user-friendly body harness.

Contact Laird Technologies today for your complete application solutions. 


  • Accommodates up to 3 dual-axis joysticks plus a large number of control elements
  • Central Stop switch
  • Acoustic and optical undervoltage warning
  • Tilt switch option as operator safety feature
  • System configuration via easy accessible TransKey
  • Tandem and multi-transmitter/-receiver operation
  • Protection class IP65


LRC-L1 Spare Parts 


RF Characteristics 

Frequency range/power 335 MHz / (<1 mW ERP)
418, 433, 447 MHz / (<10 mW ERP) - Europe, Asia
869 MHz / (<5 mW ERP) - Europe
915 MHz / (FCC part 15) - USA 
Transmission speed 4.8 to 20 kbits/s
Transmission power < 10 mW (within the permitted limits)
Receiver sensitivity -107 dBm
Modulation FM
RF channel spacing 12.5 kHz; 25 kHz and others
Antenna Internal




Commands up to 55 digital commands + STOP
up to 8 analog commands
Digital Circuitry Dual-processor technology
System addresses 24 bits = 16 million addresses
Energy Saving Mode automatic shutdown (configurable: 0–30 minutes)
Power supply Rechargeable battery, NiMH, 4.8 V / 1600 mAh
Autonomy >12h at 100% uninterupted use




Protection class IP 65
Safety Standards EN ISO 13849-1 Performance Level d
EN ISO 13849-2



Mechanical Data 

Weight approx. 1.6 kg
Dimensions 320 x 255 x 185 mm (L x W X H)
Housing Lexan* EXL polycarbonate resin, standard colour red/grey
Opertating Temperature -20° to +60°C



Operation and Indication 

Layout Customer specific, up to 3 joystics, maximum 6 steps
TransKey System configuration, address and RF channel
Indication Status LED + 4 Multi-LEDs
Buzzer low voltage indication
Graphic LCD 128 x 64 dots, backlight white (graphic LCD optional)




Batteries 2 x rechargeable batteries, NiMH 4.8 V / 1600 mAh
Battery charger Processor-controlled charger incl. adapter cradle, 100-240Vac, 50-60 Hz

Specifications are subject to change without notice. Check with the factory for confirmation. 

Machine Control Units

ct24 Receiver LRC CT24 

  • Ranges from 17 to 32 command relays + 2 safety relays
  • System parameter and configuration setting via RFID transponder key (TransKey™) 
  • Rugged, industrial design enclosure with IP65 protection class
  • Approvals and frequencies for worldwide deployment
  • Dim for 17 relay: 9.25” x 6.69” x 4.13” (235 x 170 x 105 mm)
  • Dim for 32 relay: 12.2” x 6.69” x 4.13” (310 x 170 x 105 mm)

ct24 Datasheet
ct24 6 Relays Datasheet 
ct24 Spare Parts 


MMCU-4  mmcu-4 

  • Up to 4 I/O cards for digital, analogue or industrial fieldbus signals
  • Various interface options for feed-back data
  • Safety-relays for commands available
  • Rugged, industrial design in a metal enclosure
  • High safety-class through redundant hardware and software architecture
  • Approvals and frequencies for worldwide deployment
  • Application-specific solutions through hardware and software configuration
  • Compatible with several transmitter types and models

MMCU-4 Datasheet 
MMCU Spare Parts 



  • CANopen Communication Profile CiA DS 301 V4.02
  • High safety-class through dual node hardware and software architecture
  • Operates in many radio frequencies for worldwide deployment
  • With data feedback option back to the transmitter unit
  • Features 2 monitored safety relays
  • High-impact-resistant housing with protection class IP66
  • Compatible with several transmitter types and models

CCM12 Datasheet 


Batteries Double Pack 

Batteries, Double-Pack
2 rechargeable NiCD-batteries, 4.8 V / 1600 mAh

Battery-Charger PLG 

Battery-Charger PLG
Process controlled battery-charger with 230V AC input power.

Waist Belt 

Waist Belt
Robust nylon cushioned belt with metallic waist clips for the transmitter

 Body Harness 

Body Harness
An ergonomic designed synthetic support harness with comfortable nylon straps.


Changing the RF-Channel
In order to ensure interference-free operation of a radio control system it may be necessary to change the RF-channel locally.

Changing the RF-channel can become necessary due to interference or the fact that a specific RF-channel is already in use. A change of channel can be performed either by reprogramming the TransKey or by reprogramming the transmitter. Reprogramming of the transmitter is performed using the transmitter keypad and requires no additional equipment.

By re-registering the operator receives useful information necessary for his working procedures.

The large displays for cranes and machines become therefore, inapplicable, thus increasing the safety aspect of the operator`s work as his attention remains within his working field.

LEDs and displays show the operator all the information he needs. The display information can be programmed to suit the individual needs of the customer.

Talkback Displays
Various displays are available to show the talkback data. Up to 6 line text messages can be displayed on an illuminated 6x16 character display.

Stationary Transmitter
When the circumstances do not allow for the use of a portable transmitter, a stationary one can be implemented, e.g. if the operator can only operate from the control console in his crane or another vehicle, the stationary transmitter is of great use.

Data transmission from machine to machine or the interlocking system of a conveyor belt is another good example of further application areas.

Tandem Operation
In the case of tandem operation the receivers can be controlled alternately either via one or two transmitters. One transmitter assumes responsibility for commands via an active request command.

Only by an active release command the receiver is given free and the other operator is able to have access to the receiver again. This option is the ideal soloution where heavy or long products have to be transported simulteaneously by tow cranes operating in tandem.

Pitch and Catch
In the case of a pitch and catch operation, the crane can be controlled alternatively via two transmitters. One transmitter assumes responsibility for commands via an active request command. Only by an active release command is the crane given free and the other operator is able to have access to the crane again.

This option is the soloution when different operators at various locations in the area and have to transport loads across large distances.

Electronic Deadman Control
The electronic deadman control shall prevent an unintentional use of a joystick, which can cause unwanted movement of cranes or machines.

The operator has to release the joystick by putting it back to the neutral position before giving the ultimate command. Without this release the joystick will not react and no commands will be conveyed from transmitter to receiver.

After the release, the joystick remains active until it returns to the neutral position and remains there for set amount of time. The active/inactive status of the joystick is indicated by a LED on the transmitter.

This feature can be set for a drive, a joystick or even two joysticks.

Man-down Alert
As operation of a remote control always requires the operator to be in an upright position, the transmitter has a tilt sensor which monitors whether the transmitter and thus also the operator are in an upright position.

If the transmitter or the operator are no longer in an upright position, a warning signal will sound after a brief period; this warns that the transmitter is in a tilted position. Unless the transmitter is not returned to an upright position or a certain button is not pressed in order to extend the tilt period, the crane or machine is automatically brought to a standstill by a forced braking.

Multiple Address Feature
The multiple address feature is an add-on feature for tandem-operation.

Up to 15 receivers can be controlled alternately from 1 to maximum 7 transmitters.