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Available on request

Honeywell – MLS3421DRF Sensors - Microwave

MPN: MLS3421DRF · Brand: Honeywell

Price on request

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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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Quick facts

Availability	Confirmed on request
Category	Honeywell Building Management Systems (BMS)
Lifecycle	Active
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

When can MLS3421DRF be shipped?

MLS3421DRF 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 MLS3421DRF 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 MLS3421DRF 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 MLS3421DRF, subject to availability and destination.

High Detection Microwave Sensors offer high performance presence detection using Microwave technology combined with a photocell to monitor total light levels to maintain desired light levels.

Supplied as flush mount sensors. They can be converted to surface mount using the SURFMT kit and can be configured to suit site specific requirements using the QuickSet Pro.

The Mxx3500 series are suitable for corridors whereas the Mxx3421 series are sensitive to movement and are ideally suited to large spaces.

Microwaves are sensitive to movement and we recommend mounting on rigid surfaces. We do not recommend microwave sensors for use where there are large areas of metal such as metal ceiling panels as unpredictable sensitivity may result.

Dimming – 'D' models enable the luminaires to be dimmed.

Switching ‘R’ models have a switch input (mains) that can be used to switch lights ON/OFF .

The volt-free output can be used to switch equipment ON/OFF depending on the occupancy state.

• In presence mode the controlled lights will turn ON/OFF automatically when movement is detected

• In absence mode the controlled lights are switched ON by a wall switch/infrared remote and will turn OFF automatically when no movement is detected.

ELECTRICAL

Power input: 220V to 240V 50/60 Hz

Quiescent power Consumption

MLS3421DRF: 1W

MS3421R2F: 1W

MLS3500DRF: 1W

MR3500DRF: 1W

MR3500RF: 1W

Switch capacity: 10 Amps max, max inrush

200 A

Load Rating

DALI: 50 mA, 25 DALI Ballasts/Drivers

ENVIRONMENTAL

Operating temperature: 0°C to 50°C

Storage temperature: -20° C to 80° C

Humidity: 20% to 80% non-condensing

IP Rating: IP20

SENSING

Technology

Presence detection: Microwave

Light level detection: Photocell

Photocell: Passive/Active/Regulating adjustable 50-5000 lux

Max recommended mounting height:

Mxx3421: 3m

Mxx3500: 3.5m

Coverage:

Mxx3421: 360° Cone-shaped detection pattern, diameter (at floor level) = 2.8 x mounting height

MLS3500CDR: Adjustable up to 20m

Features & Benefits:

• 360° degree and directional microwave detection variants

• Surface and flush mount options

• Local control from an infrared remote

• Configurable off delay(s)

• Switch output(s) dependent on occupancy state and ambient light level

• 24hr (Washroom) mode

• Lighting scenes

Honeywell Honeywell Lighting Controls MLS3421DRF — High Detection Microwave Sensors offer high performance presence detection using Microwave technology combined with a photocell to monitor total light levels to maintain desired light levels. PartnerPLC sources new, surplus and discontinued Honeywell parts — request a quote for price, condition and lead time.