Overview
This serves as a lightweight, hand-held tool combining gas detection, multimeter functions, and environmental sensing. It covers a wide range of combustible gases (e.g., hydrogen, methane, CO, phosphine) with excellent responsiveness and built-in auto-ranging. Users benefit from real-time LCD readouts alongside intuitive analog bar, LED, and audible alarms. The device also measures temperature and humidity—making it highly versatile for safety inspections in industrial, environmental, or maintenance applications.
Features
- Broad gas detection: Hydrogen, carbon monoxide, methane, ethane, propane, butane, phosphine, and more
- Fast response time: 2 seconds to detection
- Alarm modes: Analog bar, LED illumination, and audible beep
- Environmental measurements: Temperature and humidity monitoring (with ±0.1 °C and ±5 % RH accuracy respectively)
- Display & Interface: Auto-ranging LCD indicator for clear readings
- Auto power off: Activates after ~5 minutes of inactivity
Technical Specifications
| Specification | Value |
| Model | NKYF-X4A |
| Gas Detection | Wide range including LEL, CO, H₂, etc. |
| Detection Range | 0 – 100 % LEL |
| Resolution | 1 % LEL |
| Preheat Time | 30 s |
| Alarm Modes | Analog bar, LED light, beeper |
| Environmental Sensing | Temp: ±0.1 °C; Humidity: ±5 % RH |
| Auto Off Time | ~5 minutes |
| Power Source | 2 × AAA batteries |
| Dimensions | 170 × 28 × 31 mm |
| Weight | 67 g |







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