Sontex Supercal 739 Heat Meter

Supercal 739 – Advanced Compact Thermal Energy Meter

The Supercal 739 is Sontex’s updated successor to the Supercal 539, building on the proven turbine impeller design with enhanced features and functionality for heating and cooling applications. Maintaining a compact form factor, the 739 achieves MID Class 3 accuracy, making it suitable for Domestic RHI and billing applications. Its versatility and communication capabilities have made it a popular choice for UK apartment installations.

Key Features and Benefits

• MID Class 3 Approved – Ensures accuracy for billing and domestic renewable heat incentive (RHI) applications
• Enhanced Communication Options – Pulse output, LoRaWAN, M-Bus, Radio, and Wireless M-Bus
• Battery-Powered – Standard operation with 6-year or 12-year battery options; batteries are replaceable without purchasing a new meter
• Flexible QP Ratings – Available as QP0.6 (15mm), QP1.5 (15mm), QP1.5 (20mm), and QP2.5 (20mm), where QP indicates nominal flow rate in m³/hr

Compact, Space-Saving Design

Following Sontex’s tradition of compact meter design (as seen in the 449 and 749 Superstatic ranges), the Supercal 739 includes:
• One temperature sensor mounted in the meter body to reduce installation space
• Display integrated into the flow unit, with an optional wall bracket for remote mounting if needed

The Supercal 739 provides a reliable, accurate, and flexible solution for modern residential heating and cooling systems, combining long-term performance with easy installation and versatile connectivity options.