Operation and Performance Fluid Types Liquids: acoustically conductive fluids, including most clean liquids and many liquids with small amounts of entrained solids or gas bubbles Flow Measurement Patented Correlation Transit-TimeTM mode Pipe Sizes Standard: 0.5 to 24 in. (15 to 600 mm) Optional: up to 300 in. (7500 mm) available upon request Pipe Wall Thickness Up to 3 in. (76.2 mm) Pipe Material All metals and most plastics Accuracy ±1% of reading (2in/50mm or greater pipe sizes) ±2% of reading (0.5in/15mm to &lt,2in/50mm pipe sizes) > Installation assumes a fully developed, symmetrical flow profile (typically 10 pipe diameters upstream and 5 pipe diameters downstream of straight pipe run). Final installation accuracy is a function of multiple factors including fluid, temperature range, pipe centricity among other factors. Repeatability ±0.2% of reading Range (Bidirectional) 0.1 to 40 ft/s (0.03 to 12.19 m/s) Response Time Up to 2 Hz Measurement Parameters Velocity, Volume, Mass, Energy, Total Flow Channels 1 or 2 channels Flow Transmitter Enclosure IP65 rating Specifications Weight: 3 lb (1.4 kg) Size (h x w x md): 7.9 x 4.3 x 1.5 in. (200 x 109 x 38 mm) Mounting: Soft strap around pipe or magnetic clamp > Analog Inputs 4-20 mA (qty 2) Analog Output 4-20 mA (qty 1) Digital Output Pulse (Totalizer), Frequency, Alarm (qty 1) Digital Communication Modbus via RS485 Port Bluetooth Wireless Micro-USB Port > Battery Type: Lithium Ion (high-energy, rechargeable) Life (continuous operation): 18-20 hours Life (power saver mode): &gt,4 days Charger: 100 to 240 VAC (50/60/Hz) Charging Time: Up to 3 hours (from 0% to 100%) > Operating Temperature -20 to 55°C (-4 to 131°F) Electronics Classifications CE (EMC Directive) IEC 61326-1:2013, IEC 61326-2-3:2013, LVD 2006/95/EC, EN 61010-1 2010 ANSI/UL STD. 61010-1, CAN/CSA STD. C22.2 NO. 61010-1 WEEE Compliant (Directive 2012/19/EU) RoHS Compliant (Directive 2002/95/EC)