Honeywell – A/CP-O-4X ACI Thermistor
Discontinued by Honeywell — we can still source the original A/CP-O-4X (new, used or refurbished, subject to availability). Request a quote below.
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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 A/CP-O-4X now that it is discontinued?
Yes. Honeywell has discontinued the A/CP-O-4X, 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 A/CP-O-4X be shipped?
A/CP-O-4X 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 A/CP-O-4X 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 A/CP-O-4X 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 A/CP-O-4X, subject to availability and destination.
ACI Thermistor Outside Air Series features a weather proof European Style Plastic enclosure with twist cover and water tight cord grip fitting. The sensing element contains two, 14 inch 22 AWG Etched Teflon colored lead wires to differentiate the many different sensor types. All sensors in this series are manufactured using ACI’s proven double encapsulation process to eliminate the effects of moisture upon the sensors as well as to increase the thermal response time using our high quality, thermally conductive epoxy. The outside air sensor is a single point sensor designed to be mounted under an eave or on the North side of a building in a shaded location. The sensing tube pointed must be pointed downward to prevent any water or ice from settling in the sensing tube. Optional NEMA 4X “-4X” or NEMA 3R rated “-BB” cast Aluminum enclosure and NIST Certifcates are available as specifed in the ordering grid on the back of the product data sheet. For Applications in which the sensor must be mounted in direct sunlight, please see the Sun Shield data sheet which will allow you to order a Temperature or Temperature/Humidity Combination sensor. Features & Benefits:
Weather proof European Style Plastic enclosure
Double encapsulation
Designed to be mounted under an eave or on the North side of a building in a shaded location
5 Years WarrantyCertifications:
CE
RoHS2
WEEE
Honeywell Alerton A/CP-O-4X — ACI Thermistor Outside Air Series features a weather proof European Style Plastic enclosure with twist cover and water tight cord grip fitting to eliminate the effects of moisture upon the sensors to increase the thermal response time . 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 |
| Brand line | Alerton |
Others
| Minimum Operating Ambient Temperature | -40 degree Celsius, -40 degree Fahrenheit |
| Maximum Operating Ambient Temperature | 158 degree Fahrenheit, 70 degree Celsius |
| Brand | Alerton |
| Number of Wiring Terminals | 2 |
| Product Type | Thermistor Outside Air Sensor with NEMA 4X Housing Degrees Celsius |