Data Sheet for Product

Information in this document is based on specifications believed correct at the time of publication. The right is reserved to make changes as
design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners.
© 2016 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089-4513
USA
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Document No. 149-956
Printed in the USA
Page 2 of 2
Table 1. Ordering Information.
Sensor
Type
Output Signal
Finish
Accuracy
Product Number
Button
1K Ω Pt
RTD (375a)
Metal
±0.54°F (±0.3°C)
@ 32°F (0°C)
QAA1011.AASU
For Use with
Siemens TEC Only*
Metal
±0.50°F (±0.28°C)
@ 77°F (25°C)
QAA1031.AASU
Button
with
Plate
1K Ω Pt
RTD (375a)
Metal
±0.54°F (±0.3°C)
@ 32°F (0°C)
QAA1011.AATU
For Use with
Siemens TEC Only*
Metal
±0.50°F (±0.28°C)
@ 77°F (25°C)
QAA1031.AATU
Flush
Mount
100K Ω
Thermistor
White Plastic
±0.36°F (±0.2°C)
@ 77°F (25°C)
536-784B
Beige Plastic
536-784A
Metal
±0.50°F (±0.28°C)
@ 77°F (25°C)
536-984
10K Ω Type II
Thermistor
White Plastic
536-994B
Beige Plastic
536-994A
Metal
±0.4°F (± 0.2°C)
@ 77°F (25°C)
540-984
1K Ω Pt
RTD (375a)
White Plastic
±0.54°F (±0.3°C)
@ 32°F (0°C)
544-374B
Beige Plastic
544-374A
Metal
544-973
For Use with
Siemens TEC Only*
White Plastic
±0.50°F (±0.28°C)
@ 77°F (25°C)
540-520B
Beige Plastic
540-520A
Metal
540-995
* Connects to TEC RTS port using an RJ-11 cable.
Table 2. Accessories.
Description
Part Number
Metal Guard for Plastic Flush Mount Sensors
(Not compatible with button style or metal sensors)
540-538