The ultrasonic compact energy meter can be used for measuring the energy consumption in heating/cooling applications. Please note that Measurement Canada will issue its first Notice of Approval for Heat Meters in 2020 and will start inspection of Heat Meters installed prior to 2021 to check for accuracy. All BTU meters are supplied with end pieces and follow NPT (National Pipes Thread). Features Internal high capacity 3.6V lithium battery Can be mounted on a supply pipeline or on a return pipeline, and can be mounted in the either horizontal or vertical direction. Compatible with CJ188, EN1434 (GB/T26831) protocols Having optical interface, RS485 or M-Bus interface Compatible with NOWA protocol MID certification approval Measurement Canada Approval AV-2467 Pipe Diameter Flow Rate Temperature Lead Time 15mm (1/2") 0.6m3/hr 4-95°C In Stock 20mm (3/4") 1.5m3/hr 4-95°C In Stock 25mm (1") 3.5m3/hr 4-95°C In Stock 32mm (1 1/4") 6m3/hr 4-95°C 4-8 weeks 40mm (1 1/2") 10m3/hr 4-95°C In Stock 50mm (2") (Flanged) 15m3/hr 4-95°C In Stock 65mm (2 1/2") (Flanged) 25m3/hr 4-95°C 4-8 weeks 80mm (3") (Flanged) 40m3/hr 4-95°C 4-8 weeks 100mm (4") (Flanged) 60m3/hr 4-95°C 4-8 weeks 125mm (5") (Flanged) 100m3/hr 4-95°C 4-8 weeks 150mm (6") (Flanged) 150m3/hr 4-95°C 4-8 weeks 200mm (8") (Flanged) 250m3/hr 4-95°C 4-8 weeks 300mm (12") (Flanged) 400m3/hr 4-95°C 4-8 weeks Quick Access Product Sheet Manual