TrolMaster AS-4 CO2 Alarm Station (Blue Light)

TrolMaster AS-4 CO₂ Alarm Station with Blue LED & Digital PPM Display

Enhance safety in your grow facility with the TrolMaster AS-4 CO₂ Alarm Station. Designed to be mounted outside your grow room, the AS-4 continuously monitors carbon dioxide (CO₂) levels using input from either the AL-1 or AL-2 CO₂ sensors—or both for full redundancy.

Equipped with a vibrant blue LED indicator, audible alarm, and LCD digital display, this module immediately alerts you if CO₂ levels exceed your preset threshold. The AS-4 is ideal for commercial grow operations where environmental safety is critical. Its plug-and-play setup makes installation simple, while the real-time ppm readout gives staff full visibility before entering the grow space.

Note: The AS-4 requires the SPH-1 for supplemental power.

Features & Benefits:

• Blue LED light indicator and LCD PPM display
• Sounds an audible alarm when CO₂ exceeds limits
• Supports dual-sensor redundancy with AL-1 and AL-2
• Mounts easily outside grow areas for safety
• Includes 16ft RJ12 cable for flexible placement
• Easy plug-and-play configuration

Package Includes:

• 1 x TrolMaster AS-4 Alarm Station
• 1 x 16ft RJ12 Cable

Specifications:

• Voltage: 12V
• Working Temperature: 32–122°F
• Working Humidity: ≤90%
• Package Dimensions: 130mm (L) x 187mm (W) x 88mm (H)

Protect your grow operation and staff with the TrolMaster AS-4 CO₂ Alarm Station—designed for accuracy, safety, and reliability in high-performance cultivation environments.