The SmartPD meter from Niagara Meters is a digital, volumetric meter available in nutating disc (SND) and oscillating piston (SOP) models. It is two-wire loop powered and measures volume and flow rate. It has 4-20mA output with HART communication to allow for flexibility in applications. Various line sizes and base materials are available. Remote options are available up to 50 feet for high-temperature applications or when access to the meter for readings is not convenient. 800/778-9251; www.niagarameters.com.