2 In 1 Combination Smoke And Carbon Monoxide Detector Alarm 85dB/3m 200m 95%RH

ZKD-512 Smoke and CO Alarm

ZKD-512 is a smart carbon monoxide and smoke combo detector ,adopts microprocessor control, the electrochemical carbon monoxide sensor is stable and reliable with low current consumption and small sensitivity drift.
It's mainly well used in the place of carbon monoxide gas leakage and fire place, guarantee personal safety.It's reliable and trustworthy.

State-of-the-art Photoelectric Sensor
Combination Smoke Detector and Carbon Monoxide Detector Can Detect the threat of these Two Gases. Carbon Monoxide Detector alarm Using High accurate Electrochemical Sensor, alerts you to Carbon Monoxide Danger. Photoelectric Sensor Detects Smoke, Smoke Detector While Minimizing false alarms.
LCD display concentration PPM, real-time monitoring to protect your safety.

360° All-Round High-sensitivity Protection
* 3*1.5V AA battery supply
* Ultra-long standby time, low current consumption
* Low-battery warning
* Alarm memory function
* Alarm pause(Hush Mode)
* Sound & Flash Alarm & LED indicating Alarm

Easy Installation
1.First, determine whether the gas to be detected is lighter or heavier than air.
2.Gas that is heavier than air: liquefied petroleum gas, etc.
3.Gas that is lighter than air: natural gas, artificial gas, biogas, etc.
4. When detecting gas heavier than air: Install natural gas alarm detector 0.3 m above the ground, within 1.5 m from the air source radius.
5. When detecting gas lighter than air: Install natural gas alarm detector 0.3-1.0 m below the ceiling and within 1.5 m from the air source radius.
 

The device is highly sensitive, can respond quickly, accurate measurement of low level concentration of smoke.
It's suitable for homes, office buildings, factories, schools, hotels, warehouses, entertainment places, trains etc.
 

For example, It install in home. 

Q: What is your terms of payment ?
A:We accept trade assurance, western union ,Visa master card and tt.
Trade assurance can protect you, when you confirm the product then the money into my account.

Q: When do you reply to messages?
A: We will reply you for your inquiry in 24 hours.

Q: What is the warranty for your product ?
A: Warranty: 12 months, Lifetime maintenance

Q: When do you send the products? And how do you send it ?
A: For the small order, we will send out the goods with 5 days,If have stock ,we will send immediately.
We send them by ups, fedex, tnt or dhl. For big order, normal is 20 days will finish.

Q:Do you accept OEM or revised logo, color, model, size?
A:Yes, we accept OEM for the qualify buyer.We can make the products according to customer personal requirement.

Q: How about the quality of the managements ?
A: We have a complete quality control system , all of our products will be fully pre-inspection by QC departments before shipping to you . We have the certification of ISO,CE we could send the certification test of our company to you.

Q: How about your after-sale service?
A: After sending, we will track the products for you , until you get the products.
When you got the goods, test them, and give me a feedback.
If you have any questions about the problem, contact with us, we will offer the solve way for you.