Honeywell – ASL453 SWL Air flow monitoring

MPN: ASL453 · Brand: Honeywell

Price on request

Discontinued by Honeywell — we can still source the original ASL453 (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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Quick facts

Availability	Confirmed on request
Category	Honeywell Building Sensors & Detectors
Lifecycle	Discontinued
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

Can I still buy the ASL453 now that it is discontinued?

Yes. Honeywell has discontinued the ASL453, 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 ASL453 be shipped?

ASL453 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 ASL453 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 ASL453 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 ASL453, subject to availability and destination.

The SLF... sensor can be used in combination with an ASL… evaluation device to monitor the flow in the air (e.g. in air-conditioning systems). The switching point is adjustable. While the fan starts up the switch-on bypass is active. The bypass duration (2 – 60 s) is adjustable.The air flow monitors work according to the calorimetric principle. A thermistor is heated up. As heat is withdrawn by the flowing air, the thermistor resistance alters. The change in resistance is evaluated. As the resistance also depends on the temperature of the medium, the difference must be determined by a second thermistor. The difference is compensated and in this way the switching point is kept stable.Suspended materials adhering to the sensor can have an insulating effect and so affect themeasurement result and hence the defined switching point. Therefore it is advisable to remove any dirt during routine maintenance operations.

Honeywell FEMA ASL453 — The SLF... sensor can be used in combination with an ASL… evaluation device to monitor the flow in the air (e.g. in air-conditioning systems). The switching point is adjustable. 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.