GREYSTONE CMD5B4100
Compact and reliable digital controller for managing temperature, humidity, and other environmental factors in building automation systems
Key Features
- Electrochemical CO sensor
- Selectable 0–500 ppm range
- 4–20 mA or 0–5 / 0–10 V output
- On-board LCD display
- Built-in audible alarm buzzer
- IP65 / NEMA 4X rated enclosure
৳ 0.00
Description
The GREYSTONE CMD5B4100 is designed for dependable indoor air-quality monitoring, specifically to detect harmful carbon monoxide (CO) levels before they become dangerous. Its electrochemical sensor delivers accurate CO detection over a configurable range (up to 500 ppm), with output options (4–20 mA or 0–5 / 0–10 V) that make it easy to integrate into building management or HVAC systems. The on-board LCD provides real-time CO concentration readings, so facility managers or staff can instantly see current air conditions. If CO rises above safe thresholds, the built-in audible alarm buzzer and optional relay alert ensure timely response, giving you crucial time to ventilate or evacuate.
Because it comes in a rugged, IP65 / NEMA 4X-rated enclosure, the detector remains durable in commercial or industrial environments — from offices and shops to warehouses or plant rooms. Compared to basic CO alarms, the CMD5B4100’s analog output, selectable measuring range, and robust build provide far greater flexibility and reliability. Whether you’re managing a large facility, a school, a theater or a hospital, this detector helps safeguard occupants’ air quality and peace of mind.
Specifications
- Sensor type: Electrochemical Greystone Energy+2Alps Controls+2
- Measurement range: 0–500 ppm (selectable 100, 150, 300, 400 or 500 ppm) Greystone Energy+1
- Output options: 4–20 mA or 0–5 V / 0–10 V DC Greystone Energy+1
- Power input: 24 VAC / 24 VDC Alps Controls+1
- Display: LCD panel with back-light Greystone Energy+1
- Alarm: Built-in audible buzzer (≈ 85 dB) Alps Controls+1
- Enclosure rating: IP65 / NEMA 4X (wall/space mounting) Alps Controls+1
- Relay: 1 relay (optional configurations may include alarm relays) Alps Controls+1
- Optional communication: Supports BACnet or Modbus (RS-485) for network integration Alps Controls+1
- Operating environment: Indoor use; temperature and humidity tolerances per manufacturer specification Broadline Industrials+1
- Application: Suitable for offices, schools, malls, theaters, industrial sites, hospitals and other enclosed spaces kele.com+1
Available for purchase and import to Bangladesh through authorized distributors. The price may vary depending on shipping, import duties, and distributor mark-ups. Please request a quote from local suppliers or importers to get the current landed cost in Bangladesh.
If you like — I can prepare a version of this description translated into Bengali (Bangla) for your Bangladesh webshop.

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