A/TT100-O-4X - ACI temperature transmitters are a cost effective solution for all of your temperature measurement needs. The transmitters are accurat durabl and reliable. Numerous mounting configurations are offered. ACI produces two temperature transmitter the A/TT100 for use with a 100 Ohm Platinum RTD and the A/TT1K for use with a 1K Ohm Platinum RTD. The transmitters produce a linear 4-20 mA output carried on a two-wire system. Optional output voltage ranges of (+1-5 or +2-10 VDC) can also be ordered. The transmitter is supplied factory calibrate and supplied with zero and span potentiometers for field calibration. The transmitter is linear from -50 to 392°F. The A/TTM Series transmitters are calibrated using a high accuracy NIST traceble digital thermometer and temperature chamber at three points standard. All temperature transmitters have a five year product warranty. The standard outside air configuration is based on an European style enclosure that locks out moisture with a gasketed cover and watertight fitting. They are designed to be mounted flush to an exterior wall.