THIS PRODUCT HAS BEEN DISCONTINUED. CLICK HERE FOR DETAILS OR SEE MODELS NTM-3, NTM-M or NTM-N AS REPLACEMENTS. OTEK's LSB (4.35"W x 4.35"H) is a loop powered switchboard/circular bargaph with a 4 1/2 digital LCD display. Great choice to replace old analog style meters. In 1975 OTEK introduced the World's First Loop Powered DPM. In 1979, The First Loop Powered Bargraph. In 1996 the Automatic Tri-Color Bargraph and in 2004 the World's First Loop Powered Serial I/O DPM. Now OTEK brings you the World's First Loop or A.C. Signal Powered Bargraph (Pat. # 7,626,378 & 4,908,569). The bargraph gives you trend and digital accuracy. DISPLAY: The LSB is available with 101 segments. Loop Powered or externally powered, with or without automatic tricolor backlight. The LSB is fully configurable for many functions. Standard calibration and configuration (unless otherwise specified) is: a. Left Zero, 4-20mA or 0-2V = 0 - 100.0 & 0-100 bargraph segments. b. Alarm Annunciators (bars only reverse acting) set for: 25, 50, 75 & 100% of Scale. c. Backlight: Red: 0-10%, Amber: 10-20%, Green: 20-80%, Amber: 80-90%, Red: 90-100%. But, if you need to change it, just plug a hand held terminal into the Com connector on the back of the unit. LOOP POWERED: Use it to monitor or control any process and if you enable the backlite colors, it will inform the operator of limits exceeded. If you use the serial port it will communicate with other intelligent instruments (DCS, SCADA, PC, PLC, etc.) or even become a remote display. A.C. SIGNAL POWERED: No power supply is required! The LSB draws its parasitic power (~50mA) from the signal it measures. Again backlite colors and RS232E are available to help you control the process. WARNING: No isolation; use P.T. and C. T. (no control outputs). EXTERNALLY POWERED: Here you have access to ALL the LSB's features such as relays, analog out, USB, RS232C, RS485, math functions, X-Y tables, polynomials, floating point and more. GRADES: Nuclear: For Class 1E; Mil: To specific Mil-Stds; Industrial: Per these specifucations.