2 Wire smoke font b alarm b font DC9 25V smoke detectors work with Conventional panel
Click to see details
2 Wire smoke alarm DC9 25V smoke detectors work with Conventional panel

2 Wire smoke alarm DC9-25V smoke detectors work with Conventional panel

100 % of buyers enjoyed this product!
Availability: in stock
Price:  US $6.50 / piece
from AliExpress
45 days Money back 45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.
On-time Delivery On-time Delivery
Guarantees: On-time Delivery 60 days


2 Wire smoke alarm DC9-25V smoke detectors work with Conventional panel



This product named Photoelectric smoke detector(hereinafter called detector) detects the smoke by a couple of infrared diodes. The principle of detecting is granule in the smoke can reflect infrared light. Infrared diodes are placed in the special chamber. The chamber can shield external light, but doesn’t affect the smoke into it. While there is no smoke, the diode can receive very weak infrared light. When the smoke entering the chamber,diode can receive more and more light,and the detector can give out alarm signal when the smoke attains the certain density. In order to reduce the interference and lower power consumption, the emitting circuit adopts the pulse signal.


Operating Voltage Range: 9 to 35 VDC Volts Non-polarized

Standby Current: 45uA@DC24V

Maximum Alarm Current (LED on): 40mA@DC24V

(1K Ohm current-limiting resistance)

Operating Humidity Range: 95%RH Relative Humidity, Non-condensing

Operating Temperature Range: -10C to 50

Smoke Alarm Sensitivity: 0.5dB/m(±0.1dB/m)

Height: 42 mm installed in Base

Diameter: 100mm

Connection Description 2 wire smoke detectors :base terminals “1” and“ 2” for DC power input , non-polarized.“1”for DC power positive pole or cathode input,“3” for DC power positive pole or cathode output.“4”for remote indicator cathode. When remote indicator is used “1” in must be connected to the positive line in .

Terminal 1: IN+( Zone Input+)

Terminal 2: IN- (Zone Input- )

Terminal 1: IN+( Zone Output+)

Terminal 3: IN- (Zone Output- )

Terminal 1: Remote Indicator+

Terminal 4: Remote Indicator-


Dear Friends, Please kindly Note:

1. Please understand the relationships between the value of Invoice declaration(for custom clearance) and the risk in your country, such as Brazil. Much lower value declaration may cause problem/risk during custom clearance. 2. Please leave a tax number under your order for delivery requirement. 3. All international expresses delivery are not allowed to send battery, so Batteries are not included in the independent smoke, the encoder and panel shipments. 4. For the free shipping products , we will choose one express which is convenient for both of us .If you don’t like any specific international express, please feel free to tell us, we will change to another.

We produce a variety of independent sales distribution smoke detectors , combustible gas detectors, fire alarm systems, security alarm systems products among consumers enjoy a higher status . With many retailers and agents to establish a long-term stable cooperative relations .

Welcome ODM OEM.

Average Star Rating:
0 out of 5 (0 Ratings)
Name Rating Feedback
Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

Most Popular from Category

Price:  US $6.50 / piece
from AliExpress