Domer thermometer 5720 capillary, white dial, 63 mm case diameter

Domer 5720 is a mechanical capillary thermometer with a white dial inside a 63 mm round case. The instrument uses a capillary sensing element and an analog pointer to indicate temperature, offering a simple and reliable way to monitor ambient or equipment temperatures where an independent, compact mechanical thermometer is preferred. Its clear dial and conventional scale make readings straightforward in HVAC tasks, control panels, and general-purpose temperature monitoring.

Advantages

The capillary construction provides remote sensing capability with a flexible connection between the dial and the sensing bulb, allowing installation where space near the measurement point is limited. The 63 mm case delivers a compact footprint while maintaining a readable dial. As a mechanical device, the thermometer requires no external power and is resistant to power interruptions, providing continuous temperature indication. The white dial with contrasting markings improves legibility under typical indoor lighting conditions.

Suitable for

• HVAC system checks and routine maintenance
• Mounting on industrial control panels and enclosures
• Monitoring ambient temperature in technical rooms or cabinets
• Applications where a compact, non-electrical temperature indicator is needed

Key specifications

• Case diameter: 63 mm
• Dial colour: white with high-contrast markings
• Sensor type: capillary tube with remote sensing bulb
• Display type: analog pointer (mechanical)
• Mounting style: panel or surface mount compatible with standard 63 mm instruments

How to use

Install the thermometer by placing the case into the prepared panel cut-out or using the appropriate mounting bracket; secure it according to panel thickness and the mounting method. Position the capillary sensing bulb at the measurement location, avoiding direct contact with strong heat sources or drafts that could affect accuracy. Ensure the capillary line is routed without tight kinks or sharp bends and fixed to prevent movement. Read temperature from the dial once the sensor has equilibrated with the measured environment.

Usage recommendations

For reliable readings, allow sufficient time for the sensing bulb to reach thermal equilibrium with the environment being measured. Avoid exposing the instrument to temperatures or mechanical stresses beyond its intended range. When installing in control panels, place the bulb where it represents the air or surface temperature of interest and protect the capillary from pinch points or crushing during panel assembly.