Fluke CV401 ClirVu 95mm Locking Infrared Window
The Fluke CV401 supports safe thermal checks while keeping panels closed and energised. It lets teams work with less delay, and it helps reduce risk with a rugged IR window that stands up to heat, cold and moisture. The unit uses a tough ClirVu coated optic, and it keeps its clarity even when the environment shifts. The result is a simple tool that extends uptime and eases routine work.
Safety and Clarity
The Fluke CV401 uses a sealed optic that resists damage from moisture and dust, and it performs in harsh indoor or outdoor sites. The window keeps a stable view for all Fluke thermal cameras, and it enables repeatable scans without removing doors. This raises inspection speed and lowers exposure to arc-flash conditions.
Fast Installation
The Fluke CV401 installs through a single standard punch and locks in place with a secure latch. The cover stays attached so it cannot fall or get lost, and the housing maintains strength with a metal-to-metal ground path. The fit is firm, and it is rated to withstand demanding marine and industrial settings.
The Fluke CV401 also gives teams clear location tracking thanks to an identification plate. Its wide 95 mm optic allows greater field of view, and its IP67 housing blocks dust and water. These small gains build smoother workflows and safer processes for electrical, thermal and condition-based tasks.
Key Features
- Provides a 95 mm viewing optic for wide thermal access
- Supports short, mid and long-wave IR plus UV inspection
- Operates from −40°C to +232°C with 260°C intermittent use
- Fits all current Fluke thermal cameras without adapters
- Uses a secure key latch for restricted access
- Allows single-hole mounting with a standard punch kit
- Keeps cover and fastener attached at all times
- Accepts up to 10-gage panel thickness
- Includes ClirVu coated optic for stable long-term clarity
- Rated for indoor or outdoor panels under Type 4 and 12











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