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Honeywell M301MJ

300 Series Miniature Monitor Module

MPN: M301MJ
Category: Honeywell Fire Alarm Panels & Modules

Price and lead time confirmed within 1 business day

Discontinued by Honeywell — we can still source the original M301MJ (new, used or refurbished, subject to availability). Request a quote below.

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12-month warranty (new) · 3-month (used/refurbished)
30-day returns, no restocking fee on unused parts
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What is the Honeywell M301MJ?

Mini Monitor Modules are used to monitor a single device or a zone of four-wire smoke detectors, manual fire alarm pull stations, water flow devices, or other normally-open dry-contact devices. They are used to monitor normally-open supervisory devices with special supervisory indication at the control panel. Monitored circuit/device is wired as an NFPA Style B (Class B) Initiating Device Circuit. A 47K ohm End-of-Line Resistor terminates the circuit. Features & Benefits:

Built-in type identification automatically identifies this device as a monitor module to the panel

Powered directly by two-wire SLC loop. No additional power required

High noise (EMF/RFI) immunity

Tinned, stripped leads for ease of wiringCertifications:

UL: S1570

ULC: S1570

FM Approved

CSFM: 7300-0554:131

MEA: 130-00-E

FDNY: COA

Honeywell M301MJ — Mini Monitor Modules are installed in a single-gang junction directly behind the monitored unit. Their small size and light weight allow it to be installed without rigid mounting. Mini Modules are intended for use in intelligent, two-wire systems. 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.

Specifications

Product

Lifecycle

Discontinued by Honeywell

Ordering codes

Part numbers on this product page

M301MJ, M301MJ-CH, M301MJ/N

M301MJ: frequently asked questions

Can I still buy the M301MJ now that it is discontinued?

Yes. Honeywell has discontinued the M301MJ, 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 M301MJ be shipped?

M301MJ 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 M301MJ 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 M301MJ 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 M301MJ, subject to availability and destination.