Temperature sensor Hewalex 74.30.00 with 3 m cable

Hewalex temperature sensor 74.30.00 with 3 m cable is a wired temperature probe intended for measuring ambient or surface temperatures in residential, commercial and technical environments. The probe connects to HVAC controllers, weather stations and monitoring systems and provides a stable temperature signal compatible with common analog or digital inputs depending on the host device. The compact design and three-metre cable enable installation in rooms, technical cabinets or sheltered outdoor locations where a reliable temperature readout is required.

Advantages

The sensor offers a simple wired connection and a fixed 3 m cable that facilitates routing to control units or data loggers without additional extension. Its construction provides consistent measurements for HVAC regulation, environmental monitoring and basic meteorological setups. The probe’s format allows installation on surfaces or mounting within enclosures, delivering stable temperature feedback with minimal maintenance.

Suitable for

• Room temperature measurement for heating and ventilation systems
• Monitoring temperature inside technical cabinets and electrical enclosures
• Integration with weather stations and local environmental monitoring setups
• Surface temperature sensing on walls, ducts or equipment

Key specifications

• Wired temperature probe with fixed 3 m cable
• Designed for ambient and surface temperature measurement
• Compatible with common analog or digital inputs depending on host device
• Compact probe body suitable for mounting in rooms or enclosed spaces
• Intended for indoor use or sheltered outdoor installations

How to use

Mount the probe at the measurement point avoiding direct sunlight, strong drafts or heat sources that could distort readings. Route the 3 m cable to the controller, data logger or weather station input, ensuring secure electrical connections according to the host device’s input requirements. If surface measurement is needed, fasten the probe firmly to the surface for good thermal contact. Verify reading stability after installation and calibrate the monitoring equipment if required by your system specifications.

Usage recommendations

For accurate ambient readings, place the sensor away from radiators, ventilation outlets and direct solar exposure. When used in enclosures, ensure sufficient airflow around the probe or mount it on a representative internal surface. Check cable routing for mechanical stress and secure connections periodically to maintain reliable long-term operation.