The cornerstone feature of the Series 1300 Oxygen Deficiency Monitor is its extended life electrochemical sensor with optimized Enhanced Electrolyte System (EES). As a result of EES, Alpha Omega Instruments is able to offer an unparalleled four (4) year sensor warranty. The standard measuring range of the monitor is 0-30% with a readout resolution to the nearest tenth of a percent. Alpha Omega Instruments’ exclusive Advanced Digital Interface (ADI) offers the capability to expand the Series 1300 with up to three oxygen sensors. Adding oxygen sensors and/or optional horn and strobe alarms in the field takes just a few minutes. For multi-point monitoring requirements, equipping the Series 1300 with three oxygen sensors reduces the per-point price to under $1,000. The Series 1300 also features a powerful built-in data logger so time-stamped oxygen values can be captured and stored for subsequent use with a variety of spreadsheet programs.