Product selection guide: IR windows

Use our product selection guide to find the IR window that fits your needs best.
F CV201 02A KO
Fluke 100clkt 1b
Fluke CV201 ClirVu® 50 mm (2 in) Infrared WindowFluke 100 CLKT IR Window for Outdoor and Indoor Applications
Size51 mm (2 in)100 mm (4 in) 
Voltage rangeAnyAny 
NEMA environment typeType 4/12 (indoor/outdoor)Type 3/12 
ClirVu® Optic   
Operating temperature-40 °C to +232 °C (-40 °F to +450 °F)-40 °C to +232 °C (-40 °F to +450 °F) 
Arc-tested (IEEE C27.20.7)68 kA for 30 cycles @ 60 Hz at KEMA60 kA for 30 cycles @ 60 Hz at KEMA 
UL 50 V component recognition   
UL 50/NEMA environmental ratingNEMA type 4/17NEMA type 3/12 
UL 1558  
CSA C22.2 No.   
CSA type ratingType 9Type 3/12 
IP ratingIP 67 at TUVIP 55 
Lloyd's RegisterUp to 11 kV marine switchgear, indoor or outdoor (offshore only)Up to 11 kV marine switchgear, indoor or outdoor (offshore only) 
Vibration ratingIEC60068-2-6IEC60068-2-6 
Humidity rateIEC60068-2-3IEC60068-2-3 
Actual mounting hole diameter required61.37 mm (2.416 in)92 mm (3.62 in) 
Greenlee punch kit - punch/die76BB = 441AV / 442AVHole saw only 
Door latchSecurity keyHand turn 
Install time10 minutes or less10 minutes 
Optic insert diameter51 mm (1.97 in)100 mm (4 in) 
WarrantyLifetime replacement against manufacturing defectsLifetime replacement against manufacturing defects