For Explosive Risk Environment M4EX Explosion Proof Signal Tower Light DC24V IP66

The ONN-M4EX is a single-layer explosion-proof warning light built with an aluminum-alloy housing and tempered-glass cover. A secondary optical design delivers even, bright illumination, while the integrated buzzer supports steady-on and flashing modes. Two signal-input types are available — contact type and PNP/NPN — and an optional voice-broadcast version lets users load custom MP3 audio files via a Micro-USB port. Available in Red/Yellow/Green with multiple voltage options (AC/DC12V, DC24V, AC220V), it is CE, RoHS and FCC certified, screw-mounted, and backed by a 2-year factory warranty. Suited for wastewater treatment, port machinery, metallurgy, gas facilities and mining hazardous environments.

• Explosion-proof aluminum-alloy housing with tempered glass, rated IP66
• Per-color power: 1.6W; DC24V current: 60–80mA per channel
• Max buzzer volume: 100dB; steady-on, flash, and flash-and-steady integrated modes
• 3-color indicator: Red / Yellow / Green
• Input voltage options: AC/DC12V, DC24V, AC220V
• Signal interface: contact type or PNP & NPN
• Optional voice-broadcast function with custom MP3 audio via Micro-USB
• 50,000-hour LED lifespan; working temperature: -20℃ to 45℃
• Certifications: CE, RoHS, FCC; 2-year warranty

1. Robust explosion-proof IP66 construction adapts to corrosive and high-risk industrial sites.
2. Rich working modes: steady-on, single-color flash, all-color flash, with or without buzzer.
3. Dual-signal input (contact / PNP-NPN) is compatible with most industrial PLC systems.
4. Voice-broadcast model supports uploading custom MP3 warning audio for site-specific alerts.
5. Multi-voltage options are ready for different field power-supply conditions.

1. Complete explosion-proof and dust-water resistant housing for hazardous-area applications.
2. Versatile light-buzzer combination modes satisfy different alarm-notification requirements.
3. Non-polarized DC24V power input simplifies field wiring work.
4. Custom voice broadcast can replace traditional fixed-tone alarms with personalized site prompts.
5. Standard screw-hole layout enables fast retrofitting on existing equipment.

Wastewater treatment plants, port machinery, metallurgical equipment, gas stations and gas facilities, mining, and other explosive-risk industrial locations.

Full model example: ONN-M4EX-1-B-E-T-RYG-Y

16 years of industrial light manufacturing experience. Free wiring diagrams, custom engraved logo, and a 2-year full quality warranty.