SKY 501/502

SKY-501 / 502 Radio Remote Control – Advanced 10-Button Wireless System for Multi-Motion Cranes

The SKY-501 (Single-Speed) and SKY-502 (Double-Speed) are premium models in the SKY Series designed for advanced crane and machinery operations requiring up to 20 control commands. With a rugged build, high-function relay outputs, and support for precise motion handling, this system is ideal for high-load EOT cranes, long-span gantries, or equipment with complex interlocks.

Built for industrial durability and operator safety, the SKY-501/502 integrates IP65-rated protection, secure transmission, and easy on-site configuration.

✅ Expanded Command Capacity

SKY-501: 10 single-speed buttons + Start/Stop + Alarm = 12 commands
SKY-502: 10 double-speed buttons (20 commands) + Start/Stop + Alarm = 22 commands

Accommodates complex systems including hoist, trolley, bridge, grab, or rotation functions.

✅ Robust Industrial Design

Durable housing for harsh factory or outdoor use
IP65 ingress protection
Transmitter weight: 275 g
Quick-access LED indicators for diagnostics

✅ Long-Range Secure RF Performance

Frequency: 433–434 MHz
FM modulation (4GFSK / 2GFSK) with 25 kHz channel spacing
Range: Up to 100 m, adjustable
32-bit address coding ensures signal exclusivity
Site-programmable channel and pairing

✅ Advanced Safety & Functional Control

Dual NC Emergency Stop contacts
Fast shutdown under 50 ms
Password protection and idle time management
Custom relay assignment for start, alarm, and auxiliary functions

Transmitter

Feature	Specification
Frequency	433–434 MHz
Modulation	FM (4GFSK / 2GFSK)
RF Output Power	10 mW
Commands (501)	12
Commands (502)	22
Power Supply	2 × AA alkaline batteries
Consumption	18 mA active / 1 mA standby
Dimensions (mm)	202 (H) × 60 (W) × 50 (D)
Weight	275 g
Protection Rating	IP65

Receiver

Feature	Specification
Relay Output (501)	10 + 2 relays (Start/Alarm)
Relay Output (502)	15 + 2 relays (Start/Alarm)
Relay Rating	5A @ 250 VAC (resistive)
Power Input	110 / 230 VAC
RF Sensitivity	–117 dBm @ 0.6 kBaud
Dimensions (mm)	284 (H) × 220 (W) × 110 (D)
Weight	Approx. 1.2 kg
Protection Rating	IP65

On-Site Pairing – Simplified setup and replacement
Adjustable Start Range – Prevents accidental activation
Idle Timeout Function – Automatically shuts down to save battery and enhance safety
Password Protection – Prevents unauthorized use of transmitter
LED Indicators – Clear feedback for battery status, transmission, and system errors.

Cranes with multiple motions (hoist + trolley + long travel + auxiliary)
Equipment requiring 20-relay custom control
Interlocked motion cranes and complex automation machinery
Outdoor and workshop installations

SKY 501/502

SKY 501/502

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