USD 6.53/pieceUSD 15.57/lotUSD 6.49-14.63/pieceUSD 11.42-25.59/pieceUSD 10.75/pieceUSD 18.01/pieceUSD 9.05/pieceUSD 8.64/piece
Topvico Wireless CO Carbon Monoxide Gas Detector Alarm Sensor High Sensitive Digital Backlight LCD House Home Security System
Work on all the place will make CO (Carbon Monoxide).
This item not the detector for leak of natural gas, coal gas or normal smoke,
it is detect the CO only, CO come from the burn lack of oxygen,
most poisoning from air because of CO, many die every year.
– Europen standard subsection alarm
When concentration to 50PPM, alarm within 60 to 90 minutes
When concentration to 100PPM, alarm within 10 to 40 minutes When concentration to 300PPM, alarm within 3 minutes
– High senstive detector
– Clear digital backlight LCD
– High-end design
– 4 steps easy install
– Wirelss with battery(battery not include)
When install battery, screen turn on with 8888, it is mean the battery install correct, then screen turn off, for power save, only turn on when sensor detect CO more than 30PPM, keep press the test button, will with screen flicker and alarm voice, it is mean the sensor work correct, the green light will flicker every 30 seconds.
TOPVICO Electronic Technology Co., Ltd. is a company focus on Home Security&Automation, established in 2011, pay all attention to provide most desired and competitve goods to our customers, that’s why we exist, we are here to make your purchase happy, pleasure to communicate with you and improve by your suggestions, thank you dear customers!
– Q: How long your goods will be sent out?
A: 98% goods will be sent out within 24 hours, others within 72hours
– Q: What delivery method?
A: Defalut use Aliexpress online shipping, better guarantee for you,
if you need very urgent, please contact us to change the price for DHL or other commercial express
– Q: How to track the package?
A: Track will update in your order page
– Q: What is the delivery guarantee?
A: If not arrived within gurantee time, please contact us directly, will send new package or full refund
Please note that Buyers are responsible for all additional customs fees, duties, and taxes for importation into your country. We will not refund shipping charges for refused shipments.
AFTER SALE SERVICE
The following information is required when you reflect the problem:
– Image or video of defective goods (contact seller directly)
How to solution:
– Professional technic support to find the problems
– If really goods problems, will send new package or refund money
If repair need, please contact the seller, guarantee time is one year, out of guarantee time,
the buyer is responsible for the cost of returning or parts shipping cost.
We will employ every resource to ensure that your return is processed promptly and without hassle. Please contact us for any product or service issues before opening a dispute on Aliexpress.
Your satisfaction and positive feedback is very appreciate. Please leave positive feedback and 5 stars if you are satisfied with our items and services.
If you have any problems with our items or services, please feel free to contact us first before you leave negative feedback.
We will do our best to solve any problems and provide you with the best customer services.