
135db Motion Sensor Alarm
135db Motion Sensor Alarm for Garage, Shed, Outbuilding, Indoor, Travel, Camping
MA20 motion sensor alarm
Merchant Video
How This Non-waterproof PIR (Passive Infrared) Motion Sensor Alarm Works? (Please read below info before ordering)
1: Must first set up 4 PIN codes each time the battery is replaced.
2: Press the '4' key to arm after PIN codes Setting. You will have a 30s delay to leave the monitoring area.
3: Once triggered, you have 5s to disarm with codes, or it sounds for 30s
What is the recommended mounting height for this alarm?
Recommended Wall-Mounted Installation Height: 5ft (1.5m);
Installing the alarm too high may reduce sensitivity or hinder motion detection;
Detection Range: 20-26ft (6-8 meters) Detection Angle: 120° horizontally, 60° vertically (non-adjustable);
How to power on this alarm?
Option 1: Recommend using 4 AA alkaline batteries (not carbon-zinc) with a minimum capacity of 2500mAh per unit (BATTERY NOT INCLUDED & NOT RECHARGEABLE);
Option 2: External USB Power with included special USB power cord. TIPS: ADAPTER NOT INCLUDED;
What can I do if batteries drain fast?
If installed in a high-traffic area where the alarm is frequently triggered, the battery will deplete more quickly. In such cases, we recommend using an external USB power supply instead of relying solely on battery power.
Can this infrared sensor work normally in high-temperature environments, such as ambient temperatures exceeding 95°F?
Recommended Temperature: 5°F to 95°F. High ambient temperature can cause infrared sensors to low performance or malfunction.Therefore, during installation, avoid direct sunlight or positioning the sensor towards other heat sources like radiators.

An Ideal Additional Indoor Home Security System
- This alarm emits an extremely high-pitched, harsh sound designed to immediately deter intruders or burglars.
- It is suitable for indoor areas, garages, sheds, outbuildings, gates, and front/back porches.

Portable Pets Repeller & Travel Camp Bear Alarm
- It can also be used while traveling for camping, RVs, motorhomes, or touring cars. Please note that IT IS NOT WATERPROOF.
- You can also use it to keep pets off kitchen counters and tables or keep them from destroying the furnitures when you are away.
Operation Guidance(IMPORTANT**PLEASE READ BEFORE ORDERING**)

Step 1: Power On Alarm
- Use 4 AA alkaline batteries. (TIPS: BATTERIES NOT INCLUDED)
- Or use External USB DC Power with included special USB power cord.(ADAPTER NOT INCLUDED)

Step 2: Set 4 PIN CODES First
- Set 4 numbers as PIN CODE after power on.(Make sure don't use '4' as the 1st code)
- The PIN won't be stored. You need to re-set when replace batteries.

Step 3: Press key '4' to Arm
- Press key '4' to arm after PIN code is set successful.
- Then you have 30s to leave the monitor area without triggering the alarm.

Triggered and Sound Loudly
After 30s, once triggered by detecting body movements, if PIN CODE isn't entered timely in 5s, it will sound very loudly and last 30s.
Video Tutorial for Settings
From BRAND Mosaic Alarm
135db Motion Sensor Alarm
135db Motion Sensor Alarm for Garage, Shed, Outbuilding, Indoor, Travel, Camping
MA20 motion sensor alarm
Merchant Video
How This Non-waterproof PIR (Passive Infrared) Motion Sensor Alarm Works? (Please read below info before ordering)
1: Must first set up 4 PIN codes each time the battery is replaced.
2: Press the '4' key to arm after PIN codes Setting. You will have a 30s delay to leave the monitoring area.
3: Once triggered, you have 5s to disarm with codes, or it sounds for 30s
What is the recommended mounting height for this alarm?
Recommended Wall-Mounted Installation Height: 5ft (1.5m);
Installing the alarm too high may reduce sensitivity or hinder motion detection;
Detection Range: 20-26ft (6-8 meters) Detection Angle: 120° horizontally, 60° vertically (non-adjustable);
How to power on this alarm?
Option 1: Recommend using 4 AA alkaline batteries (not carbon-zinc) with a minimum capacity of 2500mAh per unit (BATTERY NOT INCLUDED & NOT RECHARGEABLE);
Option 2: External USB Power with included special USB power cord. TIPS: ADAPTER NOT INCLUDED;
What can I do if batteries drain fast?
If installed in a high-traffic area where the alarm is frequently triggered, the battery will deplete more quickly. In such cases, we recommend using an external USB power supply instead of relying solely on battery power.
Can this infrared sensor work normally in high-temperature environments, such as ambient temperatures exceeding 95°F?
Recommended Temperature: 5°F to 95°F. High ambient temperature can cause infrared sensors to low performance or malfunction.Therefore, during installation, avoid direct sunlight or positioning the sensor towards other heat sources like radiators.

An Ideal Additional Indoor Home Security System
- This alarm emits an extremely high-pitched, harsh sound designed to immediately deter intruders or burglars.
- It is suitable for indoor areas, garages, sheds, outbuildings, gates, and front/back porches.

Portable Pets Repeller & Travel Camp Bear Alarm
- It can also be used while traveling for camping, RVs, motorhomes, or touring cars. Please note that IT IS NOT WATERPROOF.
- You can also use it to keep pets off kitchen counters and tables or keep them from destroying the furnitures when you are away.
Operation Guidance(IMPORTANT**PLEASE READ BEFORE ORDERING**)

Step 1: Power On Alarm
- Use 4 AA alkaline batteries. (TIPS: BATTERIES NOT INCLUDED)
- Or use External USB DC Power with included special USB power cord.(ADAPTER NOT INCLUDED)

Step 2: Set 4 PIN CODES First
- Set 4 numbers as PIN CODE after power on.(Make sure don't use '4' as the 1st code)
- The PIN won't be stored. You need to re-set when replace batteries.

Step 3: Press key '4' to Arm
- Press key '4' to arm after PIN code is set successful.
- Then you have 30s to leave the monitor area without triggering the alarm.

Triggered and Sound Loudly
After 30s, once triggered by detecting body movements, if PIN CODE isn't entered timely in 5s, it will sound very loudly and last 30s.
Video Tutorial for Settings
This Video Shows Every Step of Setting
Caution and TIPS
- Not for Door Bell.
- TIPS: THIS 135db VOLUME IS NON-ADJUSTABLE.
- This alarm emits an extremely high-pitched, harsh sound designed to immediately deter intruders or burglars. While the noise may be uncomfortable for some sensitive individuals, it is highly effective in attracting attention when needed.
Travel PIR Motion Detector
Portable Simple Keypad Alert
- NO APP required. Friendly keypad operation for Elderly or Kids
- Packing List: MA20 Motion Sensor Alarm x1; Fixings; USB Power Cord x 1(5ft/1.5m); Manual;
From BRAND Mosaic Alarm
![]() 135dB Remote Motion Alarm | ![]() Keychain Siren Alerts LED | ![]() Rechargeable 135dB Alarm | ![]() 2 Pack Personal Alarm | ![]() 70LED Motion Closet Light | ![]() 3 Pack Door Window Alarms | ![]() Elderly SOS Panic Button |
|---|---|---|---|---|---|---|
| Customer Reviews | ||||||
| — | — | — | — | — | — | — |
| Price | ||||||
| — | — | — | — | — | — | — |
| Qty | ||||||
| 1 Pack | 1 Pack | 1 / 2 Pack Optional | 2 Pack | 2 Pack | 3 Pack | 1 Kit |
| Model | ||||||
| MH105 | PA68LED | PA98CH | PA68T | LD70 | MH306 | MH102 Kit |
| Battery Power Supply | ||||||
| 2 x AAA akaline Batteries | CR2032 x 2 (non-replaceable | Rechargeable Battery | CR2032 (Replaceable ) | Built-in 2000mAh | LR44 x 3 (Replaceable) | USB Rechargeable |
| Battery | ||||||
| Not Included | Built-in | Built-in | Included (Replaceable) | Included (USB Rechargeable) | Included (Replaceable) | Included (Replaceable) |
| Color/Option | ||||||
| White | Black/Aqua/Pink/Gold | Black/Aqua/Pink/Gold | Black/Purple/Pink | 70 /40 /24 LED | White | White |
| Strobe Light | ||||||
| -- | Yes | Yes | No | -- | -- | -- |
| Volume | ||||||
| 135dB | 130dB | 135dB | 130dB | -- | 130dB | 130dB |
| USB DC Power | ||||||
| ? | ? | ? | ? | ? | ? | ? |



























