What is the operating voltage range?

The operating voltage is DC 24V, with a range of DC(17~30)V.

What are the available models for the 442 series?

Available models include Audible Alarm, Visual Alarm, and Audio/Visual combinations in Red or White.

Conventional (non-addressable) Audible Alarm

Name: Conventional (non-addressable) Audible Alarm
Brand: Ningbo Ambest Electronics Co., Ltd.
SKU: 702911492

Zhejiang, ChinaNingbo Ambest Electronics Co., Ltd.

US$1.00

1 Piece

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Type

Smoke Alarm

Signal Transmission

Wired Alarm

Working Mode

Active

Certification

CE, RoHS, UL, En

Application

Indoor

Working Principle

Electro-Optical Type

Clour

Red

Operating Voltage

DC 24V

Start-up Time

<1s

Alarm Current

100mA

Strobe Light Flash Period

<0.5

Operating Temperature

(-10~+50)Centigrade Degree

Operating Humidity

(0~95)%Rh,Non-Condensing

Transport Package

60PCS/CTN

Specification

dia110*53mm

Trademark

Numens

Origin

Ningbo, China

HS Code

853110000

Production Capacity

200000PCS Per Year

Key features

Multiple Certification: Certified by CE, RoHS, UL, EN, BSI, and SGS for global compliance.

High Decibel Output: Loud sounder output of 85 dB at 1 meter for clear warning.

Dual Color Options: Audible alarm device available in Red or White body colors.

Versatile Compatibility: Compatible with 2-wire/4-wire systems and addressable modules.

Fast Response Time: Start-up time is less than 1 second for immediate alarm activation.

Low Power Consumption: Zero current load in quiescent condition with 0A quiescent current.

Durable LED Indicator: Features long-life LEDs for reliable visual alarm indication.

Professional Manufacturer: Numens is a professional fire alarm system manufacturer since 2010.

Company profile

Ningbo Ambest Electronics Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2012-02-01Nearest Port: Ningbo,ShanghaiAverage Response Time: ≤24hTerms of Payment: T/T, PayPal, Western UnionInternational Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryNINGBO AMBEST ELECTRONICS CO., LTD. is identified as a combined company manufacturing fire alarm products, including non-addressable line-type smoke detectors. It reports six production lines, three quality inspectors, documented quality and complaint-handling procedures, and uniform finished-product inspection instructions. The supplier supports OEM, ODM, SDK availability, and broad customization services. It has a valid manufacturing-capacity contract with associated subcontractors and an outsourcing SOP, but does not conduct ongoing batch quantity reconciliation. Export sales represent 90% of total sales, while no overseas agents, branches, warehouse, showroom, or in-stock service capability are reported. The supplier has participated in the Dubai Fair and indicates lead times of one month during peak season and within 15 working days off-season. No new products were introduced in the past year, and certification holding is not evidenced.

Supplier typeThe supplier is named NINGBO AMBEST ELECTRONICS CO., LTD. and classified as a combined company rather than an offshore company. Its stated offerings include manufacturing, export trade, service, quality control, R&D, and sustainability-related information, with fire alarm products identified in the product description.

After-Sales capabilityThe supplier has documented procedures and records for corrective and preventive actions, customer complaint handling, supplier service assessment, and finished service quotations. However, it reports no in-stock service capacity, overseas warehouse, overseas showroom, overseas agents or branches, and serves zero listed overseas-service countries; therefore, procedural capability is evidenced but broad physical after-sales coverage is limited.

Production capacityProduction capability is supported by six production lines, three quality inspectors, documented finished-product inspection instructions, valid manufacturing-capacity contracts with associated subcontractors, and an outsourcing SOP. Export sales account for 90% of total sales, and stated lead times are one month during peak season and within 15 working days off-season. A deficiency is the absence of ongoing batch or quantity reconciliation, and no in-stock capacity is reported.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, flexible customization, and ODM services. This provides direct evidence of broad product and design customization capability.