The ACI A/TT1K‑R2‑4 Room Temperature Transmitter is a precision wall‑mount sensor engineered for accurate space temperature monitoring in HVAC and building automation systems. Featuring a two‑wire 4–20 mA loop powered output, this transmitter ensures seamless integration with controllers and BMS platforms. Each unit is calibrated using NIST Certified equipment, with optional matched RTD/transmitter calibration for enhanced accuracy.
This model uses a 1K Ohm Platinum RTD sensor (Class A), offering exceptional stability and long‑term reliability. With Zero and Span adjustments, field calibration is straightforward, while the compact R2 style ABS enclosure allows easy installation over a standard junction box. Applications include office buildings, schools, hospitals, pharmaceutical facilities, manufacturing plants, gyms, and data centers.
Trias Automation is an Authorized Distributor of ACI in India, providing direct access to the A/TT1K‑R2‑4 along with technical support, warranty coverage, and fast delivery nationwide. Optional features such as set point adjustment, override switch, and LCD display make this transmitter versatile for demanding environments.
Room Temperature Transmitter ACI A/TT1K‑R2‑4
Specification Value Part Number A/TT1K‑R2‑4 Output Signal 4–20 mA (2‑wire loop powered) Sensor Type 1K Ohm Platinum RTD, Class A Accuracy ±0.2% (Temp spans < 260°C) Drift ±0.04%/°F (<100°F spans) Supply Voltage +8.5 to 32 VDC Enclosure ABS Plastic, White (R2 style) Operating Range 1.5 to 50°C (35–122°F) Warranty 5 years Compliance RoHS2, WEEE

