Skip to main contentSkip to footer
Slide 1 of 1

Overview

The Belimo 22G05-5B is a fixed methane (CH₄) gas monitor for commercial spaces, measuring 0–50% LEL with temperature sensing. It offers CAN bus and BACnet MS/TP communication, dual SPDT relays, configurable analog outputs, and an LCD for local status.

Belimo 22G05-5B CH₄ Gas Monitor, 0–50% LEL, CAN bus/BACnet, 2 Relays, LCD Display

Model: 22G05-5B
Web Code: 19614779
Sold and shipped by | 4.8 seller rating (12 reviews)

Sale ends: *

Available for deliveryAvailable online only

Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

Seller Return Policy

Read return policy

Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

What's included:

  • Belimo 22G05-5B methane gas monitor
  • mounting hardware
  • documentation (installation/operating instructions).

Designed for demanding commercial and industrial environments, the Belimo 22G05-5B methane gas monitor provides reliable detection of CH₄ from 0–50% LEL while also tracking ambient temperature. It helps protect enclosed areas such as parking garages, boiler rooms, and mechanical spaces by enabling ventilation or alarms when gas levels rise. For flexible integration, the 22G05-5B includes CAN bus and BACnet MS/TP communication along with configurable analog outputs (2–10 V or 4–20 mA). Two onboard SPDT relays can directly control fans, dampers, or warning devices, and the backlit LCD makes setup and local status checks straightforward. Factory calibration, robust housing, and Belimo’s five-year warranty support long-term performance in building automation systems.

Product Condition
Brand New
Type
Fixed methane gas monitor
Device Compatibility
Building automation systems and controllers using CAN bus; BACnet MS/TP; control systems accepting 2–10 V or 4–20 mA inputs.
Connectivity
CAN bus; BACnet MS/TP; analog outputs 2–10 V or 4–20 mA (configurable ranges).
Material
UL94 5VA-rated plastic housing
Special Features
Factory calibrated CH₄ sensor 0–50% LEL; integrated temperature sensor; CAN bus and BACnet MS/TP; dual SPDT relays; configurable analog outputs; audible and visual alarms; backlit LCD display.

Dimension

Width
12 cm
Height
19 cm
Depth
5 cm
Weight
0.43 g

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping may be available on orders over a minimum amount (before taxes, fees, and promo codes). Shipping charges may vary based on item size and your shipping address. Want a shipping charge estimate? Simply add an item to your cart, then access the cart and enter your postal code in the shipping estimate section.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • No restrictions in Canada
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
Product Category
Smart home products
Return/Exchange Period
30 days
Condition
Opened

Learn more about returning a Marketplace product