The YA-D400 series point type gas detectors provide comprehensive safety monitoring for combustible and toxic gases in industrial environments. These detectors are essential for chemical plants, petroleum facilities, metallurgy operations, liquefied gas stations, and other areas with potential gas leak hazards.

Designed for detecting toxic and combustible gases during generation, storage, and usage processes. The detector integrates seamlessly with YA-K series controllers to form complete industrial gas alarm systems.

This microprocessor-based controller processes detector signals, performs real-time data calculations, and manages system functions including fault detection and alarm notifications.

• Real-time gas concentration display with clear LCD screen
• Fault, low, and high-level alarm capabilities
• Infrared remote control operation without opening covers
• Three relay outputs (250V 5A) for automatic fan and solenoid valve control
• Multiple communication options: RS485, two buses, LoRa
• DC4-20mA standard signal output
• Stores 40 high and low alarm records
• Toxic gas units support mg/m³ and μmol/mol conversion
• 4.3-inch industrial LCD display with clear concentration readings
• Audible and visual alarm notifications when gas limits are exceeded