The UPM-F is a single channel compact unit (2"x3"x1/2") that needs no panel cut-out, only a 1/2" hole for mounting. The flat pack case model is for display only, and offers no controlling or analog outputs. The UPM-F is available in either a loop (4-20mA), A.C. or D.C. signal or external power version. The external powered version offers >30 signal conditioners with non-isolated power input options (Non-Isolated 5VDC or 7-32VDC). This compact unit also features automatic/programmable colors (red/green/yellow) on each character. You can use the UPM as a DPM (Digital Panel Meter) for analog inputs and/or a universal timer/counter for 15 different functions, including Log & Anti-Log, Datum Zero, Frequency, etc. In addition, the included match functions (+, -, √, ÷, x) enable it to be used as a scientific counter. The UPM Series features 10 different mechanical models, from the flat pack to the explosion proof, and custom orders are welcome! As with all our products, the UPM comes with a Lifetime Warranty (limited) and has a CMTBF (Calculated Mean Time Between Failure) of 40 years!