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Nitrogen Dioxide Breakthrough Indicator (BTI3). The indicators are reliable and cost effective for protection from nitrogen dioxide.

Nitrogen Dioxide Breakthrough Indicator (BTI3)

Nitrogen Dioxide Filter Change Indicator (BTI 3)

Item No. 449

Length = 11.43cm (4.5”)
Diameter = 7.62cm (3.0”)
Inlet = 2.5” Male NPT
Nitrogen Dioxide Breakthrough Indicator BTI3 Waterproof is reusable. Refill Kit Part Number: 449-5000


Nitrogen Dioxide Breakthrough Indicator Waterproof High Capacity (BTI3). Indicates the saturation filters. The indicator is reliable and cost effect for protection from toxic nitrogen dioxide. Easily connect to the 1½ inch female NPT outlet of filter using the 2½ inch male NPT threading at the bottom of the indicator. It is sensitive to targeted gases or vapors. The indicator is 4.5-inch-tall, 3-inch diameter. Unique design allow you can observe the bright vibrant color change from all directions.

Nitrogen dioxide Breakthrough Indicator Waterproof (BTI3). is reusable. Refill Kit Part Number: 449-5000

BTI 3 Refilling Instructions

PN 449

Product Specifications

a Weight: 204.5g (7.2oz)
b Dimensions: 11.43cm (4.5in), diameter 7.62cm (3.0in)
c Inlet dimensions: 2.5″ MNPT
d Operating temperature: -20oC to 55oC (-4oF to 131oF)
e Operating humidity: 5% RH to 85%RH
f Minimum detectable limit: 0.5ppm•hr at 30 cm/sec face velocity
g Color change: Off white to gray to black
h Storage temperature: 4oC to 25oC, (39oF to 77oF)
i Shelf life: 1 years at 4oC to 25oC, (39oF to 77oF)
j Service life: 1 years

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