The TIO Totalizer converts analog mass flowmeters and controllers into digital units via RS 232 or RS 485 interfaces (multi-drop capacity up to 64 devices). The device can be used for the company’s GFM and AFM flowmeter, as well as with any third-party devices with 0–5-V d.c./4–20-mA inputs and outputs. No host PC presence is required for local or programmable set-point control. — Aalborg Instruments, Orangeburg, N.Y.