Electronic Flowmeter Product Type TFX Ultra Flow Meter Flowmeter Type Ultrasonic Accuracy +/-1 Percent Connection Size 1/2 in Compatible Flow Material Water Media Temperature - Maximum 140 Degrees F Media Temperature - Minimum -40 Degrees F Voltage - Maximum 264V AC Housing Material Aluminum Wetted Material Not Applicable Standards ANSI/ISA 12.12.01 (2013) with Directives 2004/108/EC 2006/95/EC and 94/9/EC UL 1604 CSA 22.2 No 213 UL 61010-1 CSA C22.2 No 61010-1