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Available on request

Honeywell – M300DJ 300 Series Dual Monitor Module

MPN: M300DJ · Brand: Honeywell

Price on request

Discontinued by Honeywell — we can still source the original M300DJ (new, used or refurbished, subject to availability). Request a quote below.

Request a Quote

12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	Honeywell Fire Alarm Panels & Modules
Lifecycle	Discontinued
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

Can I still buy the M300DJ now that it is discontinued?

Yes. Honeywell has discontinued the M300DJ, but sourcing discontinued parts is what PartnerPLC specialises in — new old stock, used and refurbished units. Request a quote and we'll confirm availability, condition and lead time.

When can M300DJ be shipped?

M300DJ is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up M300DJ in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for M300DJ and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for M300DJ, subject to availability and destination.

Dual Monitor Modules provides two Style B (Class B) IDC circuits ONLY. Style D (Class A) IDC circuits are NOT supported in any application. They have a single panel controlled LED. They automatically assigns itself to two addressable points, starting with the original address. If one of the devices within the group has new information, the panel CPU stops the group poll and concentrates on single points. The net effect is response speed greater than five times that of other design protocols Features & Benefits:

Redundant protocol for added protection

Configurable for Class B operation

External supply voltage monitoring

Can power one 24V or two 12V solenoids

SEMS screws for easing wiring

Panel controlled status LED

Analog communications

Rotary address switches

Low standby current

Mounts in standard 4in (10.16cm) junction box

Flash Scan operationCertifications:

UL: S1570

ULC: S8643

MEA: 457-99-E Vol. 3

FDNY: COA #6036

FM Approved

CSFM: 7165-0554:0153

Honeywell System Sensor M300DJ — Dual Monitor Modules are intended for use in intelligent, two-wire systems. They offer two independent two-wire initiating device circuits at two separate, consecutive addresses. They are capable of monitoring normally open contact fire alarm. Discontinued by Honeywell — no longer in the current range. PartnerPLC sources new, surplus and discontinued Honeywell parts — request a quote for price, condition and lead time.