1. Introduction
Congratulations on your purchase of the CPVAN Door Window sensor. This sensor is designed for indoor use only and is intended to be used in combination with compatible CPVan Home Alarm Units. It provides an essential layer of security by detecting the opening or closing of doors and windows.
The sensor operates by detecting changes in magnetic fields. When the magnet component is moved away from the main sensor unit, it detects this motion and sends a wireless signal to the connected CPVAN Alarm Unit. The alarm unit will then respond according to its settings, typically by emitting a strong alarm sound or a chime.

2. Box Contents
Please check the package for the following items:
- 1x CPVAN Door Window Sensor
- 1x 12V Button Battery (pre-installed inside the sensor)
- 1x Set of double-sided mounting tape (for back cover)
- 1x Instructions for use (this manual)
3. Product Overview
The CPVAN Door Window Sensor consists of two main parts: the Sensor unit and the Magnet unit. The Sensor unit contains the detection circuitry and battery, while the Magnet unit provides the magnetic field for detection.

A small red indicator light on the front of the sensor flashes to confirm operation during testing.
4. Specifications
| Feature | Specification |
|---|---|
| Model Number | 433mhz Door sensor |
| Power Supply | DC 12V (1x button battery) |
| Standby Current | <8uA |
| Alarm Current | <15mA |
| Wireless Frequency | 433 MHz |
| Transmission Distance | <80m (open area) |
| Working Temperature | -10~55℃ |
| Certification | CE |
| Smart Home Platform Compatibility | Tuya (with compatible alarm hosts like CP2W/CP8) |
| Compatibility | CP2/CP2W/CP4/CP9/CP10/CP11 alarm hosts |
5. Setup and Installation
5.1. Pairing with CPVAN Hubs
This door/window sensor cannot be used alone. It must be used together with a compatible CPVAN alarm host. For detailed pairing instructions, please refer to the specific manual of your CPVAN alarm hub (e.g., CP2/CP2W/CP4/CP9/CP10/CP11).
5.2. General Installation Guidelines
Proper installation is crucial for optimal performance and reliable detection. Please follow these guidelines:
- Surface Preparation: Ensure that both the installation area on the door/window and its frame are clean, dry, and free from grease and dust.
- Placement Material: Do not install the sensors on breakable materials. Instead, choose a sturdy surface like the frame of a window or door.
- Stability: Avoid installing the sensor on unstable parts where it might easily shift or fall.
- Magnetic Interference: Do not install the sensor near other strong magnetic parts that might accidentally trigger the alarm.
- Alignment: The sensor and magnet must be placed on the door/window and its frame respectively. The square marks on both units should be aligned. The alarm is triggered when the sensor and magnet are separated.

5.3. Installation Examples
The sensor and magnet can be installed in various situations:
- Situation 1 (Ideal): Door/window and doorpost/frame are at the same vertical level. The sensor and magnet are aligned next to one another with minimal gap.
- Situations 2 & 3 (Uneven Levels): If the door/window and frame are at uneven levels, the sensor and magnet can still be installed. The distance between the two should ideally not be more than 2 centimeters. If the space is greater than 2 centimeters, the double-sided tape can be cut and stacked to create a thicker spacer to bridge the distance.


6. Operation
6.1. Working Principle
The door window sensor works by detecting the separation of its two components (sensor and magnet). When a door or window is opened, causing the magnet to move away from the sensor, the internal detector registers this change in magnetic field. It then transmits a wireless signal to your paired CPVAN alarm host, which in turn triggers an alarm or chime and sends an APP push notification to your smartphone.

6.2. Testing the Sensor
After installation, it is important to test the sensor to ensure it is functioning correctly:
- Open the window or door where the sensor is installed.
- Observe the sensor: the red indicator light on the front of the sensor should flash once.
- If the indicator light flashes, the sensor is properly set up and communicating with your alarm host.
7. Maintenance
7.1. Battery Replacement
The sensor is powered by a 12V button battery. When the battery is low, the sensor will typically send a low voltage alarm signal to your CPVAN alarm host. To replace the battery:
- Carefully open the sensor casing.
- Remove the old 12V button battery.
- Insert a new 12V button battery, ensuring correct polarity.
- Close the sensor casing securely.
7.2. Cleaning
To maintain optimal performance, periodically clean the sensor and magnet units with a soft, dry cloth. Avoid using abrasive cleaners or solvents that could damage the device.
8. Troubleshooting
- Sensor not triggering: Ensure the sensor and magnet are correctly aligned (square marks matching) and the gap is within the recommended distance (max 2cm, or adjusted with stacked tape). Check if the battery is dead or low.
- No alarm from hub: Verify that the sensor is successfully paired with your CPVAN alarm host. Refer to your alarm host's manual for pairing instructions. Check the alarm host's settings to ensure it's armed and configured to respond to the sensor.
- False alarms: Check for any nearby strong magnetic sources that might be interfering with the sensor. Ensure the sensor is installed on a stable surface and not prone to accidental movement.
- Red indicator light not flashing during test: This could indicate a dead battery or a faulty sensor. Replace the battery first. If the issue persists, contact customer support.
9. User Tips
No specific user tips were available from reviews or Q&A at this time. However, users generally find these sensors easy to install and reliable when properly configured with a compatible alarm system.
10. Warranty and Support
For any technical support, warranty claims, or further inquiries regarding your CPVAN Door Window Sensor, please contact CPVan customer support at: amazon@cpvans.com.
Please have your product model number and any relevant purchase information ready when contacting support.