GTZ 300 – Type K Clamp-On Pipe Temperature Probe for HVAC, Refrigeration & Heat Pumps

The GTZ 300 clamp-on temperature probe is a high-precision Type K thermocouple sensor designed for accurate pipe surface temperature measurement in HVAC, refrigeration, and heating systems.

This pipe temperature probe is ideal for professionals working in HVAC systems, heat pumps, plumbing, and industrial cooling, allowing fast and reliable measurements on pipes up to 30 mm diameter.

Key advantages of the clamp thermocouple probe

• Type K thermocouple (Class 1 accuracy) – high precision measurements
• Fast response time (~3s) – ideal for diagnostics and field work
• Wide temperature range – from -65 °C to +150 °C
• Clamp design for pipes – quick and secure installation
• Perfect for differential temperature measurement – flow/return analysis

Applications (HVAC, refrigeration, industrial)

The GTZ 300 pipe clamp probe is widely used for:

• HVAC systems (heating, ventilation, air conditioning)
• Heat pump monitoring and diagnostics
• Refrigeration systems and cold chain
• Plumbing and sanitary installations
• Energy efficiency measurements and maintenance
• Photovoltaic panels

Technical performance & reliability

Featuring a NiCr-Ni Type K thermocouple compliant with IEC 60584-1, this clamp probe ensures high measurement accuracy and long-term stability. The clamp is designed for continuous contact with pipes up to 150 °C.

Its optimized mechanical design delivers the perfect balance between fast response time and durability, making it a reliable tool for professional technicians worldwide. When used with compatible instruments, it allows easy measurement of temperature differences between flow and return lines, making it ideal for energy efficiency analysis.

Technical specifications