Best Photoelectric Sensor

3 Pack Smoke and Carbon Monoxide Detector Powered by Battery with Digital Display, Dual Alarm Sensor of Smoke and CO,Easy to Install

Smoke and Carbon Monoxide Detector Offering Excellent Security: Making a Loud Alarm (85 dB) When It Detects a Buildup of Smoke or Carbon Monoxide, and Instantly Alert Those In Danger..
Built-in Electrochemical Sensor with High Accuracy and Infrared Photoelectric Sensor Helping to Reduce False Alarms..
Carbon Monoxide Detector and Smoke Alarm Providing Whole-day Protection.
Battery-powered Unit Can be Installed Quickly and Easily without an Electrician.

2-in-1 Accurate, Reliable & Highly Sensitive Alarm: Equipped with both photoelectric smoke sensor and electrochemical CO sensor that work....
LCD Display: Clearly indicates real-time carbon monoxide (CO) concentration in the surrounding air, as well as the remaining battery life and working....
Test and Silence Button: Tests the unit for proper operation and resets the smoke and carbon monoxide alarm, Alarm Volume: Loud > 85dB(A) at 1 meters.....
Easy Install and Use: The alarm can easily install with mounting bracket. No hardwired anymore, very convenient to install at home or bedroom - wall....
Safety and 5 year Warranty: Low battery signal alarm and "end of life"warning ensures the detector can work normal. Environment friendly, without....

【Automatic Light Control】 Automatically switches on post light at dusk and off at dawn, no need manual operation. On level: 10-16 lux, Off Level: ＜65 lux, 30-180S sensor delay prevents accidental triggering of the other lights..
【Easy to Replace & Mount】Exact replacement for your existing post light sensor, male-female connector design, plug and play, change the original sensor in seconds. 1-3/8" diameter mounting hole for easy installation..
【Waterproof】High quality PC material, protects the sensor against from rain, snow, dust and abrasion, withstands years of use. Shock and erosion resistant, suitable for wet locations. Works with -40°C ~ +70°C Ambient Temp..
【Wide Application】 Compatible with most bulbs: up to 1800W Tungsten/ 1800VA Ballast/ 5A E-Ballast. Works with most lamp posts, coach lights and pole lights. Black finish matches any apperance..
【UL Listed】120V AC input voltage, 60Hz, threaded diameter 1-3/8" inch. The photoelectric switchis UL certified. DEWENWILS offers 24/7 troubleshooting and hassle-free return policies through Amazon.

Combo smoke detector/carbon monoxide alarm detects two threats.
Electrochemical CO sensor alerts you to carbon monoxide danger.
Photoelectric sensor detects smoke while minimizing false alarms.
Battery-operated unit installs quickly and easily without an electrician，A single button tests the unit or silences the alarm. Low battery signal mute, quiets low battery signal for up to 8 hours.
ARRANTY AND SERVICE: Our products provide after-sales service. If you have any questions about our products, you can contact us, we will reply to you as soon as possible within 24 hours..

The E3K-R10K4 is a heavy-duty AC/DC retroreflective Photoelectric Sensor for long sensing distance. It has 950nm pulse modulated infrared LED light source and detects opaque object material..

Includes Photoelectric Sensor, Sensor Hood, Reflector, Reflector Hood, Mounting Brackets, Hardware and Installation Manual.
UL Recognized Component and meets UL325 Requirements.
Compatible with LiftMaster Gate Operators with Monitored Safety Inputs.

Product 1: Battery-operated smoke and carbon monoxide alarm.
Product 1: Connects multiple alarms together for wireless safety network.
Product 1: Voice alarm gives clear indication of where the problem is located.
Product 1: Features photoelectric smoke sensor and electrochemical CO sensor.
Product 2: Help keep your family safe with this hardwired smoke alarm that wirelessly interconnects with other First Alert–enabled alarms to create....

Battery operated smoke and carbon monoxide alarm can be installed easily.
Connects multiple alarms together for wireless safety network.
Voice alarm gives clear indication of where the problem is located.
Features photoelectric smoke sensor and electrochemical CO sensor.
One button silences a false alarm and tests the unit. Loud 85 decibel alarm.
NOTE: Kindly refer to the user manual provided as a PDF manual in the product description section.
First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018).

10-Year Battery And 10-Year Sensor: This smoke and carbon monoxide alarm provides 10 years of continuous power with a built-in lithium battery, saving....
Hush Function: This smoke and carbon monoxide alarm fire alarm has been redesigned from the inside out, and it will confirm that smoke triggers the....
Reliable And Highly Sensitive Alarm: Equipped with both photoelectric smoke sensor and electrochemical CO sensor that work independently of each....
Simple To Use: Test/Silence button enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur.
Quick And Easy Installation with Guaranteed Quality: Requires no rewiring.
easy to mount on any wall or ceiling with the included mounting bracket,....