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RTi-SG-651 Sight Glass with Humidicator Paper, 13 mm, Use Wi - Reading Technologies

Part #: SG-651

The Reading Technologies RTi-SG-651 Sight Glass with Humidicator Paper is a crucial component for professional technicians monitoring system integrity in various applications. This 13mm sight glass provides immediate visual feedback on moisture levels, helping to prevent costly equipment damage and maintain optimal operational efficiency. Its robust design ensures reliable performance in demanding automotive and industrial environments.

Key Features

  • Integrated Humidicator Paper: Features a specialized indicator paper that changes color, typically from green (dry) to yellow or pink (wet), to visually confirm the presence of moisture within the system.
  • Clear Visual Monitoring: The "INDICATOR EYE" offers a direct and unobstructed view of the system's fluid condition, allowing for quick assessment of clarity and flow.
  • Durable Construction: Built by Reading Technologies, this sight glass is designed for professional-grade applications, ensuring longevity and resistance to operational stresses.
  • Optimal Sizing: With a 13mm diameter, it is suitable for integration into a variety of system lines, providing versatile application options.

Applications

The RTi-SG-651 Sight Glass is an essential diagnostic tool for professionals across several sectors. It is commonly utilized in HVAC and refrigeration systems to detect moisture in refrigerant lines, safeguarding compressors and other sensitive components from corrosion and failure. In industrial settings, it's valuable for monitoring the purity of process lines, hydraulic systems, and air dryer systems, helping to identify potential contaminants or leaks before they escalate into major issues. This sight glass allows mechanics and technicians to perform preventative maintenance, ensuring systems operate reliably and efficiently.

We have 12 in stock
List: $32.90 Save: $2.48

$30.42

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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This product was added to our catalog on Saturday 13 June, 2026.

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