# Shenzhen Kerui Smart Technology Co., Ltd.

> （433MHz wireless doorbell）（TUYA WIFI alarm system）（GSM alarm systems）（PIR motion detectors）

## Website Language Versions
- [English](https://www.keruismart.com): KERUI SMART

## Website Navigation
- [Home](https://www.keruismart.com/index.html): Home
- [About Us](https://www.keruismart.com/aboutus.html): About Us
- [Products](https://www.keruismart.com/products.html): Products
    - [Wireless doorbell](https://www.keruismart.com/Wireless-Doorbells-pl568640.html): Wireless doorbell
    - [Tuya Smart Home Security](https://www.keruismart.com/Tuya-Security-system-KIT-pl3891658.html): Tuya Smart Home Security
    - [LED Lights](https://www.keruismart.com/LED-Lights-pl45416987.html): LED Lights
    - [Alarm Accessories Series](https://www.keruismart.com/Alarm-Accessories-Series-pl69284767.html): Alarm Accessories Series
    - [DIY Alarm Kit Series](https://www.keruismart.com/DIY-Alarm-Kit-Series-pl63184767.html): DIY Alarm Kit Series
    - [Welcome Chime Series](https://www.keruismart.com/Welcome-Chime-Series-pl69133667.html): Welcome Chime Series
    - [Temperature And Humidity Detector](https://www.keruismart.com/Temperature-And-Humidity-Detector-pl44084747.html): Temperature And Humidity Detector
    - [Upcoming New Product Showcase](https://www.keruismart.com/Upcoming-New-Product-Showcase-pl41352586.html): Upcoming New Product Showcase
    - [Water Leak Sensor](https://www.keruismart.com/Water-Leak-Sensor-pl00449476.html): Water Leak Sensor
- [News](https://www.keruismart.com/news.html): News
- [Support](https://www.keruismart.com/faqlist.html): Support
- [Contact Us](https://www.keruismart.com/contactus.html): Contact Us
- [Download](https://www.keruismart.com/download.html): Download

## Product Category
- [Tuya Security system KIT](https://www.keruismart.com/Tuya-Security-system-KIT-pl3891658.html): Tuya Security system KIT
- [DIY Alarm Kit Series](https://www.keruismart.com/DIY-Alarm-Kit-Series-pl63184767.html): DIY Alarm Kit Series
- [Alarm Accessories Series](https://www.keruismart.com/Alarm-Accessories-Series-pl69284767.html): Alarm Accessories Series
- [LED Lights](https://www.keruismart.com/LED-Lights-pl45416987.html): LED Lights
- [Wireless Doorbells](https://www.keruismart.com/Wireless-Doorbells-pl568640.html): Wireless Doorbells
- [Door Sensor Alarm](https://www.keruismart.com/Door-Sensor-Alarm-pl45697907.html): Door Sensor Alarm
- [Temperature And Humidity Detector](https://www.keruismart.com/Temperature-And-Humidity-Detector-pl44084747.html): Temperature And Humidity Detector
- [Upcoming New Product Showcase](https://www.keruismart.com/Upcoming-New-Product-Showcase-pl41352586.html): Upcoming New Product Showcase
- [Water Leak Sensor](https://www.keruismart.com/Water-Leak-Sensor-pl00449476.html): Water Leak Sensor
- [Welcome Chime Series](https://www.keruismart.com/Welcome-Chime-Series-pl69133667.html): Welcome Chime Series
- [Wireless Siren Alarm](https://www.keruismart.com/Wireless-Siren-Alarm-pl46697907.html): Wireless Siren Alarm

## FAQ
- **Q: How do you ship the goods and how long does it take arrive?**
  A: We usually ship by DHL(3-5days), UPS(4-6days), Fedex(4-6days), TNT(4-6days), Airline(7-10days), or by sea(25-30days)at your request.
- **Q: Do you offer OEM service, like make our own package and logo printing?**
  A: Yes, we support OEM service, including customizing boxes, manual with your language and printing logo on the product etc.
- **Q: What is the lead time?**
  A: Sample needs 2 working days, mass production needs 7-25 working days depends on order quantity.
- **Q: How are the doorbell products of SECRUI?**
  A: We are manufacturer for more than 15 years in this area. Every product has tested many times before the shipment to ensure the best quality. Our R&D has put many new technology into our doorbells, such as Memory Function(still last setting when reboot), User-defined prompt tones(users can put tones as they like), fit-prompt setting(each button plays different tones), the etc.
- **Q: Can i have a sample order?**
  A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.