Product Overview

 The RTS-C Room Temperature Sensor is a compact, precision-built device engineered for commercial and residential applications requiring accurate low-temperature detection. This model features a normally closed (N.C.) contact that opens when the surrounding temperature drops below 40°F (4.5°C), and automatically resets once the temperature rises above that threshold.

Designed with an epoxy-sealed stainless steel sensing element, the unit is fully protected against moisture, vapor, vibration, and corrosion. Its bi-metal operating mechanism ensures consistent performance without sensitivity degradation over time. The detector supports repeated cycling without requiring replacement of sensing components. Installation is simple with screw terminals and surface-mount capability, housed within a white ABS enclosure.

The RTS Series complies with NFPA 13 and NFPA 72 requirements for low-temperature room switches used to protect dry pipe valves against freezing, and it is also suitable for other temperature-monitoring applications.

Key Features

• Moisture- and vapor-resistant sealed sensor
• High resistance to vibration and corrosion
• Sensitive to minor temperature variations
• No performance degradation due to aging
• Automatically resets; supports repetitive operation
• Compact physical design
• Cost-effective construction with reliable performance
• Normally closed contact opens below 40°F (4.5°C)
• Epoxy-sealed stainless steel sensor with bi-metal mechanism
• Electrical rating: 1A at 24VDC
• Screw-terminal connections; surface mount
• Enclosure dimensions: 2 1/16"W x 3 7/16"L x 1 1/4"H (5.2 × 8.7 × 3.2 cm)
• Temperature setting: 40° ±5°F (4.5° ±3°C)