1. Product Overview
INK456 tunnel brightness detector is dedicated for tunnel lighting monitoring. Adopting premium aluminum alloy housing with IP68 protection grade, it works steadily in dusty, wet and severe outdoor conditions. It detects real-time brightness to adjust tunnel lights automatically, avoiding black hole and white hole visual effect, improving driving safety and cutting power consumption. Widely applied in highway tunnels and urban underpasses as essential intelligent sensing equipment.
2. Sensing Technology & Self-Cleaning System
It adopts high-precision optical sensing module matching human eye visual curve, capturing visible light accurately and resisting irrelevant light interference. Built-in temperature stabilization structure eliminates data drift, keeping stable detection accuracy under extreme temperature. The wide viewing angle covers full monitoring area without blind zone.
The sealed body prevents dust and water from invading internal components. Anti-fouling optical glass reduces dirt adhesion, effectively maintaining long-term sensing performance and lowering maintenance frequency.
3. Key Features & Competitive Advantages
Supports wide brightness measurement range with high detection precision. Strong environmental adaptability fits various harsh working sites. Multiple signal output modes ensure easy connection with mainstream control systems. Long service lifespan and solid structure greatly reduce later maintenance cost. It realizes real-time status monitoring and fault warning for convenient remote management.
Compared with common similar products, this detector owns higher protection level, broader working temperature range, better accuracy and stronger compatibility, possessing outstanding comprehensive competitiveness.
4. Technical Specifications
| Parameter |
Specification |
| Measurement Range |
0 ~ 7000 cd/m² |
| Measurement Angle |
Vertical ≥20°, Horizontal ≥20° |
| Measurement Error |
±1% |
| Protection Class |
IP68 |
| Operating Temperature |
-40℃ ~ +80℃ |
| Operating Humidity |
0 ~ 100%RH |
| Power Supply |
AC 220V / DC 12V |
| Service Life |
≥50000 hours |
| Analog Output |
4~20mA |
| Digital Output |
RS485 / RS232 Optional |
| Weight |
About 2kg |
| Installation Type |
Post-mounted |
5. Applications
Mainly used for automatic lighting control of highway tunnels, urban underpasses and overpass tunnels. It can be integrated into intelligent transportation management system to collect and transmit brightness data. Also applicable for mine tunnels, mountain road tunnels, underground parking lots and industrial workshop intelligent light control scenarios.
