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As a genuine Laars boiler part
of 20-weight non-detergent oil at the time of installation
which is the standard capacity for most residential and light commercial HVAC control circuits
7" (18mm) diameter sensor
What is the purpose of the 450D TC designation
Tekmar Controls 070 Outdoor Sensor 319825-402 As a genuine Laars boilerThe Tekmar Controls 070 Outdoor Sensor is a professional grade 10k ohm NTC thermistor designed for precision temperature monitoring in hydronic and HVAC applications. Engineered for outdoor temperature reset systems, this sensor provides the critical data required for weather responsive control logic, optimizing boiler firing rates and system efficiency. The 070 features an NTC thermistor 10k ohms @ 77F with a Beta of 3892, ensuring linear accuracy
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