Bapi BA/T1KA12BB Duct Averaging Temperature Sensor 1K RTD 385 12ft Flexible Probe BAPI-Box Enclosure

The Bapi BA/T1KA12BB is a duct averaging temperature sensor designed for accurate HVAC air temperature measurement across a 20°F to 120°F sensing range. Built around a 1KΩ Platinum RTD (385 curve), this unit delivers reliable, linear temperature readings ideal for Building Automation Systems (BAS) and HVAC control applications.

This model features a 12-foot flexible averaging probe constructed of bendable aluminum, allowing it to be routed across the full cross-section of a duct for a true average air temperature reading rather than a single-point measurement. The sensor ships housed in a BAPI-Box (BB) polycarbonate enclosure rated NEMA 4 / IP66 and UV-resistant, making it suitable for demanding installation environments.

Key Features:

• Sensing range: 20°F to 120°F
• 1KΩ Platinum RTD (385 curve) sensing element
• 12-foot flexible aluminum averaging probe for full-duct coverage
• 4 to 20mA output for long-distance signal transmission without degradation
• Housed in a BAPI-Box (BB) polycarbonate enclosure — NEMA 4, IP66, UV-rated (UL94V-0)
• Enclosure rated for ambient temperatures from -40°F to 185°F
• Etched Teflon lead wires for durability and moisture resistance
• CE and RoHS compliant
• Limited lifetime warranty backed by BAPI

The BA/T1KA12BB is engineered for straightforward duct installation, with mounting clips to secure the averaging coil and closed-cell foam to seal the probe insertion point. Wiring terminations use 22 AWG etched Teflon leads. BAPI recommends using a twisted pair of at least 22 AWG wire for all field connections to ensure signal integrity.