From a residential and commercial building perspective
TP342A & TP342HA require volt free switch inputs using CAT6 cabling
Dimensions (mm): 89
Supplied by the leading MVHR manufacturer Airflow
If you require switch live inputs via the lighting circuit please refer to the following:
Testo 440 Bluetooth 100mm Vane Kit lindab From a residential and commercialBenefits Comprehensive IAQ Measurement Measures all IAQ parameters, including flow velocity, temperature, humidity, pressure, CO2, CO, and more. Parallel Parameter Detection Measures volume flow, air velocity, humidity, and temperature simultaneously at air outlets. User Friendly Operation Intuitive, structured menus simplify measurement workflows and reduce setup time. Smart Data Handling Stores up to 7500 readings and enables report exports via USB