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Built like a tank, the LRC-M1 controller for EOT cranes provides the next level of safety and reliability for your demanding industrial applications.

Control up to four motions with two ergonomic, multi-axis joystick controllers. Trolley/hoist selector, two aux push buttons and toggle all mounted on an impact resistant Lexan EXL® housing for the toughest environments.

The LRC-M1 controller provides the flexibility to easily standardize your EOT cranes currently using remote controls, saving facilities time and money.

As part of the company’s new CattronControl™ product series, the LRC-M1 controller uses the company’s external TransKey™ RFID configuration for efficient operations. This allows facilities to minimize spares and transfer keys to other controllers, while adding a level of safety and flexibility to streamline facility workflow

Contact Laird Technologies today for your complete application solutions. 


  • Control up to four motions with two multi-axis joy stick controllers
  • Lightweight impact resistant Lexan EXL® housing for rough environments
  • Flexible operations with TransKey™ configuration 
  • Conforms to EN954-1, Category 3 and EN 13849-1 Performance Level d
  • IP65 protection class, rated for outdoor use
  • LED screen optional


LRC-M1 Spare Parts 



Weight  3.5 lb (1.6 kg)
Dimensions  10.80” x 8.14” x 6.30” (274 x 207 x 160mm)(L x H x W)
Housing  Lexan EXL* Polycarbonate Resin, color Red/Grey
Operating Temperature  -4º to 140º F (-20º to +60º C)
IP protection class  IP65
Safety standards  EN 954-1 Category 3 & EN 13849-1 Performance Level D for all safety-related functions
Frequency ranges  903-927 MHz, 869 MHz, 402-470 MHz, 335 MHz
Transmission speed  4.8 to 20 kbit/s
Output power  10 mW - 500mW (within the allowable limits)
Antenna  Internal
Commands  Up to 34 commands + Stop
Digital circuitry  Dual-processor technology
System addresses  24 bits = 16 million addresses
Energy-saving mode  Automatic shutdown (configurable: 0-30 minutes)
Power supply  Re-chargeable battery NiMH 4.8V / 1600mAh
Battery Life  >12h at 100% uninterrupted use
Actuators  Joysticks, Paddles optional(customer specific layouts on request)
Indication  Status LED & 4 multi-LEDs, Buzzer for low voltage Graphic LCD 128 x 54 dots (optional)
TransKey™  System configuration, addresses and RF channel
Accessories  2 x Re-chargeable batteries NiMH 4.8V / 1600mAh, processor-controlled battery charger including adaptor cable 100-240 VAC, 50-60Hz, optional custom labeling
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.