The GF U1000 V2 Wallmount (WM) is a permanent ultrasonic clamp-on flowmetering solution with wallmounted head unit. This cost-effective device can either be used as a stand-alone meter or as an integral part of a control loop.  The GF U1000 V2 Wall mount Heatmeter (WHM) is an ultrasonic permanent Clamp-On heatmeter / energy meter / BTU meter. Additionally, to an ultrasonic flowmeter it is equipped with Pt100 temperature sensors to calculate the energy of a heat exchanging system.