WRZ-TTJ0000-2 Johnson Controls Wireless Room Sensor

Overview

The Johnson Controls WRZ-TTJ0000-2 is a wireless room temperature sensor equipped with an integrated display, designed to monitor ambient indoor temperatures and transmit data to a compatible wireless receiver or controller. Operating as part of the WRZ Series, it eliminates the need for sensor wiring, which simplifies installation and reduces labor costs in both new construction and retrofit building automation systems.

Features

• Integrated LCD display for real-time temperature, setpoint, and system status viewing.
• Pushbuttons for Warmer/Cooler (+/-) setpoint adjustments or scaled value adjustments.
• Manual occupancy override button to request zone status changes.
• Selectable °F/°C display modes.
• Built-in wireless signal strength testing to help find optimal placement during installation.
• Utilizes direct-sequence spread-spectrum RF technology on the 2.4 GHz ISM band.

Specifications

• Power Supply: 3 VDC supplied by two 1.5 VDC AA alkaline batteries.
• Battery Life: 36 to 48 months under normal operating conditions.
• Wireless Frequency: 2.4 GHz Industrial, Scientific, and Medical (ISM) band.
• RF Standards: Complies with IEEE 802.15.4 standard for low-power, low-duty cycle transmissions.
• Transmission Range: Up to 150 feet (45 meters) line-of-sight indoors; average practical interior range is 100 feet (30 meters).
• Temperature Setpoint Range: Adjustable from 55°F to 85°F (13°C to 29°C).
• Enclosure Material: NEMA 1 white plastic housing.
• Mounting Options: Surface mount using double-sided adhesive foam tape or screw mounting.

Applications

• Commercial HVAC and building automation systems (BAS).
• Single-zone or multi-sensor averaging temperature control loops.
• Office spaces, classrooms, and commercial environments.
• Indoor, intra-building spaces requiring flexible, wireless sensor configurations.