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Flex EX

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62 User Programmable Channels

Advanced synthesized RF controls with 62 built-in channels set via pushbuttons and dipswitches.

Automatic Channel Scanning Receiver

The receiver is able to search and lock onto the newly selected transmitter channel.

Over One Million Unique ID Codes

Each Flex EX system has its own unique identification code, never repeats.

Advanced Controls

The Flex EX system utilizes dual advanced microprocessor controls with 32bit CRC and Hamming Code, providing ultra fast, safe, precise and error-free encoding and decoding.

Unique I-CHIP Design

The I-CHIP functions similarly to a SIM card. Information and settings can be transferred between transmitters without the hassle of resetting the spares.

Full System Compatibility

The software and hardware are fully compatible regardless of model type, minimizing spare parts inventory.

Ultra Reliable Pushbuttons

The in-house designed pushbuttons have gold plated contacts and are rated for more than two million press cycles. The defined snap-action steps provide positive tactile feedback even wearing gloves.

Low Power Consumption & Versatility

The transmitter requires only two "AA" alkaline batteries with more than 100 hours of operation. If rechargeable method is preferred, you can also opt for the in-house designed rechargeable battery pack and charger kit, fully interchangeable.

Ultra Durable & Rugged Enclosures

The transmitter and receiver enclosures are made from industrial strength nylon and fiberglass composite material, not ABS plastic. All housings meet the IP66/NEMA4 requirements and are highly resistant to dirt, liquid, acid, alkali, grease and oil penetration. The receiver enclosures and output cables are UL94-V0 rated.

Abundant Programmable Functions

All functions and settings are easily set via pushbuttons, dipswitches, jumpers, and in-house designed programmer unit. Customized functions can also be added upon request.

Pitch & Catch Operation

This standard-equipped function allows two operators controlling from opposite ends of a crane or equipment.

Channel Programming via Pushbuttons

Frequency channels can be reprogrammed directly via transmitter pushbuttons.

Rechargeable Options

The transmitter accepts both regular “AA” alkaline batteries and in-house designed 1000mAh Ni-MH rechargeable battery pack and charging station.

Tandem Operation

This function allows one operator controlling two cranes at the same time via a 3-position A/B/A+B rotary select switch. A special tandem output is provided for external tandem box connection.

Random Access Operation

This function allows multiple operators randomly controlling multiple cranes on a first come - first served basis.

Multiple Receivers Operation

This function allows one operator controlling up to ten receivers or equipment at the same time.

Prewired Output Cable

A prewired output cable is standard equipment on all Flex EX models.

Worldwide Approvals

The Flex EX systems are fully tested and certified in accordance with the FCC Part-15 Rules and European Safety Standards such as the EN 301 489-1&3, EN 300 220-1&2, EN 60204-32, EN 60950, EN 60529, EN 60204-32 and EN 13849-1 Category PLd.


Flex EX system is standard-equipped with pushbutton labels, waist belt, vinyl casing, receiver mounting hardware and output cable. Special rubber guards, miniature indicator light & buzzer, and rechargeable kit are optional.


Frequency Range:

433MHz, 458MHz, 471MHz, 850MHz...


Digital frequency modulation based on Manchester Code, 20bit address, 32bit CRC Parity Check and Hamming Code

Encoding / Decoding Reference:

Advanced microprocessor controlled

Operating Range:

>100 Meters / 300 Feet

Frequency Control:

Synthesized PLL

Responding Time:

40mS (average)

Receiver Sensitivity:


Transmitter Voltage:


Output Contact Rating:

250VAC @ 8A

Receiver Voltages:

Flex 4 models:
24VAC @ 50/60Hz
VAC @ 50/60Hz
VAC @ 50/60Hz
110~120VAC @ 50/60Hz
220~240VAC @ 50/60Hz 
380~400VAC @ 50/60Hz
410~460VAC @ 50/60Hz 
Flex 8 & 12 models:

110~120/220~240/380~400/410~460VAC @ 50/60Hz
VAC @ 50/60Hz
48/110~120/220~240VAC @ 50/60Hz 

Enclosure Rating:

IP66 / NEMA4

Operating Temperature:

-40°C ~ +75°C

Transmitter Dimensions:

Flex 4 models: 138mm (L) x 69mm (W) x 34mm (H)
Flex 8 models: 184mm (L) x 69mm (W) x 34mm (H)
Flex 12 models: 230mm (L) x 69mm (W) x 35mm (H)

Receiver Dimensions:

Flex 4 models: 180mm (L) x 150mm (W) x 82mm (H)
Flex 8 & 12 models: 363mm (L) x 228mm (W) x 70mm (H)

Transmitter Weights:

Flex 4 models: 234g / 8.2oz (include batteries)
Flex 8 models: 284g / 10.0oz (include batteries)
Flex 12 models: 336g / 11.8oz (include batteries)

Receiver Weights:

Flex 4 models: 2.0kg / 4.4lb (include output cable)
Flex 8 models: 3.3kg / 7.3lb (include output cable)
Flex 12 models: 3.7kg / 8.2lb (include output cable)

Standard Models

Flex 4ES

Four (4) single-speed pushbuttons

Flex 4EX

Four (4) dual-speed pushbuttons

Flex 8ES

Eight (8) single-speed pushbuttons

Flex 8EX

Eight (8) dual-speed pushbuttons

Flex 12ES

Twelve (12) single-speed pushbuttons

Flex 12EX

Twelve (12) dual-speed pushbuttons

Compact Receiver (Flex 4 models)

Up to 9 outputs

Standard Receiver (Flex 8 & 12 models)

Up to 26 outputs

Output Diagrams


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Any questions? Check with the Manager!

You can leave a request and we will contact you on your question or call us at the phone number: 8 800 550 60 25

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