User's Manual

R155 Humidity-Temperature Tag
The R155 Humidity-Temperature Tag monitors and reports the relative humidity and ambient temperature in its
immediate environment. It is designed for use in environmentally-sensitive areas, such as IT data centers. This affordable
sensor tag is mounted in an impact resistant polycarbonate enclosure with strong adhesive on the back of the case. The
tag has reliable performance with an operating range from -20°C to +70°C and 0% to 95% RH. In temperature-controlled
settings, such as offices and data centers, the sensor has an accuracy of +/- 0.3°C and +/- 2% RH (typical).
R156 Humidity-Temperature Tag
The R156 Humidity-Temperature Tag monitors and reports the relative humidity and ambient temperature in its
immediate environment. It is designed for use in environmentally-sensitive areas, such as IT data centers. This affordable
sensor tag is mounted in an impact resistant polycarbonate enclosure with strong adhesive on the back of the case. The
tag has reliable performance with an operating range from -20°C to +70°C and 0% to 95% RH. In temperature-controlled
settings, such as offices and data centers, the sensor has an accuracy of +/- 0.3°C and +/- 2% RH (typical).
Note: the R156 uses Treatment Code 06 which requires Reader firmware version 1.4 or later.