SKY 401/402

SKY-401 / 402 Radio Remote Control – Reliable 8-Button Wireless Control for Cranes and Industrial Equipment

The SKY-401 (Single-Speed) and SKY-402 (Double-Speed) are versatile wireless radio remote control systems designed for mid-range industrial applications like EOT cranes, gantry systems, and automated hoists. With 8 responsive pushbuttons and support for up to 18 control commands, this model strikes the perfect balance between simplicity and capability.

Engineered for safety, reliability, and ease of use, the SKY-401/402 comes equipped with IP65-rated protection, robust RF communication, and integrated safety features like dual emergency contacts and password locking.

✅ Optimized Control Layout

SKY-401: 8 single-speed buttons + Start/Stop + Alarm = 10 commands
SKY-402: 8 double-speed buttons (16 commands) + Start/Stop + Alarm = 18 commands

Perfect for cranes with hoist + trolley + bridge motion and systems with auxiliary or alarm functions.

✅ Designed for Harsh Environments

Dustproof, waterproof, and shock-resistant housing
IP65 protection for transmitter and receiver
Ergonomic handheld transmitter with easy-glove operation
Lightweight: 275 g

✅ Stable & Secure RF Communication

433–434 MHz operation using FM (4GFSK / 2GFSK)
Range: Up to 100 meters (adjustable)
32-bit address coding for safe and interference-free use
On-site pairing and frequency adjustment supported

✅ Safety First

Emergency Stop circuit with 2 NC contacts (EN 954-1 compliant)
Emergency response time: <50 ms
LED indicators for system health, transmission status, and low battery alerts
Password protection and idle timeout built-in

Transmitter

Feature	Specification
Frequency	433–434 MHz
Modulation	FM (4GFSK / 2GFSK)
Channel Spacing	25 kHz
RF Output Power	10 mW
Commands (401)	10
Commands (402)	18
Power Supply	2 × AA alkaline batteries (3.0V)
Power Consumption	18 mA active, 1 mA standby
Dimensions (mm)	194 (H) × 50 (W) × 59 (D)
Weight	275 g (without battery)
Protection Rating	IP65

Receiver

Feature	Specification
Relay Output (401)	8 + 2 relays (Start/Alarm)
Relay Output (402)	12 + 2 relays (Start/Alarm)
Relay Rating	5A @ 250 VAC (resistive load)
RF Sensitivity	–117 dBm @ 0.6 kBaud
Power Input	110 / 230 VAC
Dimensions (mm)	186 (H) × 186 (W) × 83 (D)
Weight	Approx. 0.8 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

Overhead cranes with three-motion control
Gantry cranes with pendant replacement
Chain hoists with alarm or auxiliary function
Factory automation systems with multi-step control

SKY 401/402

SKY 401/402

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