Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your GREENCYCLE Wireless Motion Sensor Detector Alarm. Please read this manual thoroughly before use to ensure proper function and safety.
Safety Information
- This device is designed for indoor use only. It is not waterproof.
- Ensure correct battery polarity during installation.
- Keep the device away from direct sunlight, heat sources, and moisture.
- Do not attempt to disassemble or repair the device yourself. Contact customer support if issues arise.
- Dispose of batteries according to local regulations.
Package Contents
- 1x Receiver Unit
- 1x Motion Detector (PIR Sensor)
- 1x Remote Control
- Mounting Accessories (Screws, Sticky Paper, Bases)
- User Manual

Image: Overview of the GREENCYCLE Wireless Motion Sensor Detector Alarm components, including the receiver, motion detector, remote control, and mounting accessories.
Product Overview
Receiver Unit
- Speaker: Emits sounds for alerts and chimes.
- Colorful LED Light: Indicates different modes and alerts.
- Chime Key: Selects different melodies/tunes.
- Volume/Brightness Key: Adjusts volume levels or light brightness.
- ON/OFF Switch: Powers the unit on or off.
- Mode Key: Cycles through the 5 operating modes.
- Micro USB Port: For USB power supply.
- Battery Cover: Houses 3x AA batteries (not included).

Image: Detailed view of the receiver unit, highlighting the speaker, LED light, control keys, USB port, and battery cover.
Motion Detector (PIR Sensor)
- Infrared Sensor: Detects motion.
- LED Indicator: Lights up upon motion detection.
- ON/OFF Switch: Powers the sensor on or off.
- USB Charging Port: For power supply (optional).
- Battery Compartment: Houses 3x AAA batteries (not included).

Image: Detailed view of the motion detector, showing the infrared sensor, LED indicator, ON/OFF switch, and USB port.
Setup
1. Battery Installation
- Open the battery cover on the back of the receiver unit.
- Insert 3x AA batteries, ensuring correct polarity (+/-).
- Close the battery cover.
- Open the battery cover on the back of the motion detector.
- Insert 3x AAA batteries, ensuring correct polarity (+/-).
- Close the battery cover.
Note: For optimal performance, use alkaline batteries. The receiver can also be powered via its Micro USB port.
Video: Demonstrates the process of installing batteries into both the receiver and the motion sensor units.
2. Mounting the Units
Both the receiver and motion detector come with mounting bases that allow for 360-degree rotation horizontally and 180-degree rotation vertically. You can use the included screws or sticky paper for installation.
- Receiver: Place on a flat surface or mount to a wall using its base.
- Motion Detector: Mount in a location where it can effectively detect motion, such as near a door or pathway. Ensure the detection range (2-8 meters / 7-26 feet) covers the desired area.

Image: Illustrates the detection range and angle of the PIR motion sensor, showing its coverage area.
Video: Shows the 360-degree and 180-degree rotating adjustable features of the motion sensor's mounting base.
Operating Instructions
The GREENCYCLE Motion Sensor Detector Alarm offers 5 distinct operating modes:
- Welcome Mode: Plays a welcome message (5 language options).
- Doorbell Mode: Plays a chime (36 ringtones available).
- Alarm Mode: Emits a loud alarm sound (up to 113dB).
- Color Light Mode: Cycles through different colored lights silently.
- Night Light Mode: Provides a silent night light.

Image: Visual representation of the different operating modes: Doorbell, Night Light, Alarm, and Welcome Mode.
Changing Modes
Press the Mode Key on the receiver unit to cycle through the 5 available modes. The LED indicator will change color or pattern to reflect the selected mode.
Adjusting Volume/Brightness
In Welcome, Doorbell, or Alarm mode, press the Volume/Brightness Key to adjust the volume (4 levels). In Color Light or Night Light mode, this key adjusts the brightness (4 levels).
Selecting Ringtones/Welcome Languages
In Doorbell mode, press the Chime Key to cycle through the 36 available ringtones. In Welcome mode, this key cycles through the 5 welcome language options.
Video: Demonstrates how to switch between the 5 modes (Welcome, Doorbell, Alarm, Color Light, Night Light) on the receiver unit.
Pairing Instructions
The motion sensor and receiver are typically pre-paired. If you need to pair additional sensors or remote controls, follow these steps:
Pairing a Remote Control
- Ensure the receiver is powered off.
- Press and hold the Volume/Brightness Key on the receiver for 3 seconds until you hear a 'DU' sound and the indicator light illuminates. Release the button. The receiver is now in pairing mode.
- Press any button on the remote control. The receiver will emit a 'DI' sound, indicating successful pairing.
Video: Guide on how to pair the GREENCYCLE Motion Sensor Alarm with a remote control.
Pairing an Additional Motion Sensor
- Ensure the receiver is powered off.
- Press and hold the Volume/Brightness Key on the receiver for 3 seconds until you hear a 'DU' sound and the indicator light illuminates. Release the button. The receiver is now in pairing mode.
- Wave your hand in front of the motion sensor to activate it. The receiver will emit a 'DI' sound, indicating successful pairing.
Note: Each receiver can work with up to 32 motion sensors and 8 remote controls. The doorbell uses distinct colored lights (red, green, blue) to differentiate between sensors, but does not support assigning unique chime sounds to each.
Video: Step-by-step instructions on how to pair the GREENCYCLE Motion Sensor Doorbell with a sensor.
Unpairing All Sensors/Remotes
- Ensure the receiver is powered off.
- Press and hold the Volume/Brightness Key on the receiver for 10 seconds until you hear a 'di di di' sound. Release the button. All previously paired sensors and remote controls will be deleted.
Maintenance
- Clean the device regularly with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Replace batteries when the low battery indicator appears or when the device's performance degrades.
- Ensure the motion sensor lens is clear of dust and obstructions for accurate detection.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not responding | Low or dead batteries; Device is off. | Replace batteries; Turn on the device. |
| Motion sensor not detecting | Incorrect placement; Obstruction; Out of range. | Adjust sensor angle/location; Clear obstructions; Move closer to receiver. |
| No sound/light from receiver | Volume too low; Incorrect mode; Not paired. | Increase volume; Change mode; Re-pair the devices. |
| Remote control not working | Low battery in remote; Not paired. | Replace remote battery; Re-pair the remote. |
Specifications
- Brand: GREENCYCLE
- Model Number: M-SF20R-1PK+RMT-1PK-25
- Wireless Range: Up to 280m (918 feet) in open areas.
- PIR Detection Range: Approximately 2-8m (7-26 feet).
- PIR Sensor Angle: 100° (horizontal), 15° (vertical).
- Ringtones: 36 selectable tunes.
- Volume Levels: 4 adjustable levels (25-113dB).
- Operating Modes: Welcome, Doorbell, Alarm, Color Light, Night Light.
- Receiver Power: 3x AA batteries or Micro USB.
- Motion Detector Power: 3x AAA batteries.
- Mounting Type: Surface (360° horizontal, 180° vertical adjustable).
Warranty and Support
GREENCYCLE products are designed for reliability and performance. For any questions, technical support, or warranty claims, please contact GREENCYCLE customer service. Information regarding extended protection plans may also be available from your retailer.
For further assistance, please visit the official GREENCYCLE Store on Amazon.




