SITERWELL Smoke Detector Carbon Monoxide Detector Combo with Voice Speaker, Dual Sensor Fire and CO Alarm with LED Light & Test Button, Battery Operated, Auto-Check, UL 217 & UL 2034 Standards, 1 Pack
Unique Voice Speaker - Unique smoke detector and CO detector alarms distinguish between smoke alarms and CO warnings. Co alarm: "Warning, carbon monoxide, evacuate! Smoke alarm: "Fire!" . Verbal warning system reduces confusion and helps people maintain order..
Reduced Cooking Nutrition Alert - This smoke and carbon monoxide detector uses photoelectric smoke sensing technology to quickly detect slow burns. It is suitable for many locations, especially in cooking areas, to reduce false alarms of cooking smoke..
Not Disturb Mode - With SITERWELL fire and CO detectors, you don't have to worry about your rest. In low voltage or fault mode, simply press the button and the alarm clock will go into non-disruptive mode, avoiding nighttime alarms and frequent flashes, and you can enjoy approximately 10 hours of silence..
Self Check Function - The smoke detector carbon monoxide detector combination replaces the manual daily test and automatically checks the batteries and sensors every 80 seconds to ensure they are working properly. You'll be alerted when a malfunction occurs..
2-in-1 DAB-TEK Smoke and Carbon Monoxide Detector (3 Long-Life Batteries Included). Smoke Detector Carbon Monoxide Detector Combo with LED Indicator, Test & Silence Button
2-in-1 DETECTION: Detect both smoke and carbon monoxide with the DAB-TEK Carbon Monoxide Smoke Detector Combo.
3 AA BATTERIES INCLUDED: No last-minute trips to the DIY store. This Smoke Alarm And Carbon Monoxide Detector comes with 3 long-life Batteries.
PHOTOELECTRIC SENSOR: Opt for a Photoelectric Smoke And Carbon Monoxide Detector and reduce the likelihood of a serious fire spreading in your home.
SAFETY FEATURES: With a built-in test button & low-battery warning, sleep soundly knowing your fire and carbon monoxide detector is operating at its best.
EASY INSTALLATION: Simply apply mount to ceiling using 2 screws (included) and rotate the carbon monoxide detector and smoke alarm into the mount.
Aoicrie 5Pcs DC 5V 1 Channel Relay Module Board Shield with Optocoupler Isolation Support High or Low Level Compatible Development Board Trigger
This Relay Board Maximum load: AC 250V/10A, DC 30V/10A With power and relay action indicator.each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
Main Specification Peak Load of NO Connector: AC 250V/10A, DC 30V/10A.
These Relay Board use photocoupler isolation that has strong driving ability and stable performance.The isolation circuit prevent damages to I / O port by relay switch current.The module has a jumper so you can set rather the unit state changes with high or low signal. Has screw terminals for relay (NC,C,NO) and for input.
Using SMD optocoupler isolation, strong driving capability, stable performance.Fault tolerant design, even if the control line is broken, the relay will not operate.
And interface design humanized, all the interface can be directly connected through the terminal lead, so convenient..
Wide Application These 5V relay board works well with for ARM /PIC /AVR /MCU/Raspberry/CNC machine /etc..
3 Pack Combination Smoke and Carbon Monoxide Detector Alarm Digital Display for Travel Home Bedroom and Kitchen 9V Battery Operated White YJ-00903
2 in 1 smoke detector/carbon monoxide alarm, well used in the place of carbon monoxide gas leakage and fire place, well guarantee personal safety..
Understand the surrounding environment in real time - smoke detector and carbon monoxide detector Indicator lights on the face of the unit display the presence of smoke or carbon monoxide..
When carbon monoxide and smoke rise to alarm levels, the 85 dB alarm provides a clear, loud warning when it is discovered..
Dual high stability sensors- Minimize carbon monoxide and smoke detector alarm false positive..
Battery operated device Can be easily installed and maintained without the need for an electrician..
Aoicrie 5Pcs DC 12V 1 Channel Relay Module Board Shield with Optocoupler Isolation Support High or Low Level Compatible Development Board Trigger
This Relay Board Maximum load: AC 250V/10A, DC 30V/10A With power and relay action indicator.each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
Main Specification Peak Load of NO Connector: AC 250V/10A, DC 30V/10A.
These Relay Board use photocoupler isolation that has strong driving ability and stable performance.The isolation circuit prevent damages to I / O port by relay switch current.The module has a jumper so you can set rather the unit state changes with high or low signal. Has screw terminals for relay (NC,C,NO) and for input.
Using SMD optocoupler isolation, strong driving capability, stable performance.Fault tolerant design, even if the control line is broken, the relay will not operate.
And interface design humanized, all the interface can be directly connected through the terminal lead, so convenient..
Wide Application These 12V relay board works well with for ARM /PIC /AVR /MCU/Raspberry/CNC machine etc..
Install these Kidde Worry-Free Smoke Alarms to provide your home with reliable protection against smoke and fire. The alarms are equipped with sealed-in lithium batteries that are designed to last for the life of the alarms. Photoelectric sensors can detect fire particles, which are associated with slow, smoldering fires, quickly. Once the alarms are attached to the mounting brackets, they activate automatically for simple use. Product Features: Provides reliable protection Sealed-in lithium b.
ZTCOLIFE Hidden Spy Camera Wireless WiFi Spy Cam Smoke Detector with Night Vision Motion Detection HD 1080P Secret Cameras Small Nanny Cam with Phone App for Home Room Indoor Office Baby Kid Pet
【Unique Smoke Detector Design】: The appearance of wireless wifi hidden camera is the same as an ordinary smoke detector(NO real smoke detector....
【Motion Detection & Alert Notification】: when someone breaks into the home and office, the notification will be pushed to your phone app, it will....
【IR Night Vision】: Not only can clear videos and pictures be taken during the day, but also at night this hidden camera smoke detector supports....
【Full 1080P HD Hidden Spy Camera】: When the wireless wifi hidden camera smoke detector connected to an available router 2.4G WiF(not support 5G....
【Protect Your Family and Property】: When you go out, do you worry about your child's safety? Is your pets lonely? Are you worried about your place....
Adafruit 1918 Analog UV Light Sensor Breakout - GUVA-S12SD
photosensitive resistance module's most sensitive to ambient light, commonly used to detect environment around the brightness of the light, or MCU trigger relay module, etc..
module in the environment light intensity than set threshold, output high level DO end, when the environment light intensity more than set threshold, the DO output low level.
the DO output can be directly connected to microcontroller, through single chip microcomputer to detect the high and low level, thus to detect the environment light intensity change.
the DO output can be directly driven our relay module, which can form a light-operated switch..
