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ZS2 Plus Zone Sensor

ALC’s ZS2 Zone Sensors provide the function and flexibility you need, delivering precise zoning/room control to manage conditions critical to comfort, productivity, and sustainability within your building. 

The ZS2 sensors are available in a variety of zone-sensing combinations and configurations to address your application needs. These combinations and configurations include temperature, relative humidity, motion, and indoor air quality (carbon dioxide and volatile organic compounds [VOCs]). 

Designed to work with Automated Logic controllers and the WebCTRL Building Automation System, the ZS2 zone sensor product line includes the ZS2 Standard, ZS2 Plus, ZS2 Pro, ZS2 Pro-F.

Key Features & Benefits

Temperature, Humidity, Motion, CO2, and VOC options 

Supports daisy-chaining 

Hidden communication port

Push-button occupancy override

Occupancy status indicator 

Setpoint adjust

Specifications
Sensing Element Range Accuracy
Temperature w/any option (excl. humidity) -4° to 122° F (-20° C to 50° C) ±0.35°F (0.2°C)
Temperature w/humidity and any option 50°F to 104°F (10°C to 40°C) ±0.5°F (0.3°C)
Humidity 10% to 90% ±1.8% typical
Carbon Dioxide (CO2) 400 to 1250 PPM
1250 - 2000 PPM
±30PPM or +/-3% (greater of two)
±5% of reading plus 30 PPM
Volatile Organic Compounds (VOC) 0 to 2,000 PPM CO2 equivalent reading (CO2e) ±100 PPM
Motion Sensing Sensor Type: PIR
Distance: 16.4 feet, (5 m)
Detection range: (HxV) 100° x 82°
Movement speed: 2.62 to 3.94 ft/s (0.8 to 1.2 m/s)
Detection object: 27.56 x 9.84 in. (700 x 250 mm)
Power Requirements Model Type Power Required
Temperature only
Temperature w/humidity
All models 12 Vdc @ 8 mA
Temperature w/VOC
Temp/VOC/Humidity
All models 12 Vdc @ 60 mA
Temperature w/CO2
Temp/CO2/Humidity
All models 12 Vdc @ 15 mA (idle) to 190 mA (CO2 measurement cycle)
Power Supply A controller supplies limited amount of power. Please refer to the controller’s specifications.
Additional power may be required. See sensor power requirements above.
Other Specifications
Communication 115 kbps Rnet connection between sensor(s) and controller
15 sensors max per Rnet network; 5 sensors max per control program
Local Access Port For connecting a laptop computer to the local equipment or WebCTRL® network for maintenance and commissioning
Environmental Operating Range 32° to 122°F (0° - 50°C), 10% to 90% relative humidity, non-condensing
Dimensions Global Models
Overall Dimensions Width: 3.56” (90.3 mm); Height: 3.77” (95.7 mm); Depth: 1.37” (34.6 mm)

Temperature, Humidity, Motion, CO2, and VOC options 

Supports daisy-chaining 

Hidden communication port

Push-button occupancy override

Occupancy status indicator 

Setpoint adjust

Sensing Element Range Accuracy
Temperature w/any option (excl. humidity) -4° to 122° F (-20° C to 50° C) ±0.35°F (0.2°C)
Temperature w/humidity and any option 50°F to 104°F (10°C to 40°C) ±0.5°F (0.3°C)
Humidity 10% to 90% ±1.8% typical
Carbon Dioxide (CO2) 400 to 1250 PPM
1250 - 2000 PPM
±30PPM or +/-3% (greater of two)
±5% of reading plus 30 PPM
Volatile Organic Compounds (VOC) 0 to 2,000 PPM CO2 equivalent reading (CO2e) ±100 PPM
Motion Sensing Sensor Type: PIR
Distance: 16.4 feet, (5 m)
Detection range: (HxV) 100° x 82°
Movement speed: 2.62 to 3.94 ft/s (0.8 to 1.2 m/s)
Detection object: 27.56 x 9.84 in. (700 x 250 mm)
Power Requirements Model Type Power Required
Temperature only
Temperature w/humidity
All models 12 Vdc @ 8 mA
Temperature w/VOC
Temp/VOC/Humidity
All models 12 Vdc @ 60 mA
Temperature w/CO2
Temp/CO2/Humidity
All models 12 Vdc @ 15 mA (idle) to 190 mA (CO2 measurement cycle)
Power Supply A controller supplies limited amount of power. Please refer to the controller’s specifications.
Additional power may be required. See sensor power requirements above.
Other Specifications
Communication 115 kbps Rnet connection between sensor(s) and controller
15 sensors max per Rnet network; 5 sensors max per control program
Local Access Port For connecting a laptop computer to the local equipment or WebCTRL® network for maintenance and commissioning
Environmental Operating Range 32° to 122°F (0° - 50°C), 10% to 90% relative humidity, non-condensing
Dimensions Global Models
Overall Dimensions Width: 3.56” (90.3 mm); Height: 3.77” (95.7 mm); Depth: 1.37” (34.6 mm)
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