Battery operated motion sensors alarm in comparison

Built in PIR motion sensor,Wireless

The PIR sensor has been designed and optimised for performance and battery lifespan so users are not having to frequently change batteries - Motion sensor has a built in low battery indicator

DIY Your Home Security System Customize your setup with door and window sensors, motion detectors, keypads, water leak sensors, and thermo-hygrometers; you can expand the system with up to 6 keypads and 44 additional devices for tailored, flexible protection

Wireless motion sensor include 1 Motion Sensor and 1 Plug-in receiver. The motion sensor will alerted when people enter or leave.Use as Entry Alert for home Business.It also can be used at the front door, back door, mailbox, garage and driveway.This motion sensor is not waterproof.If used it on outdoor,Please use on a covered porch or other location where it wouldn't get wet. Wide Distance and range Motion Detector Security Sensor detects movement within 16.4ft range x 110 . It transmits the signal to receivers within the 500ft 150m in open area. It with optional adjustable mounting bracket. Visual and Sound Alerts When the sensor is engaged, the LED light indicator flashes to perform a visual alert. It's a great visual indicator when you are listening to music or for the hearing impaired. Multiple melodiesLoud chime The receiver has 58 ringtones for your choice. 5 adjustable volume levels from 0 dB to 110 dB. Easy Installation YisTech Wireless Monitor Sensor is battery (also can use USB cable) operated for fast and easy use. Each receiver can be paired with up to 20 transmitters. Each transmitter can be paired with up to 20 receivers.

The motion detector is powered by a 9V battery type E-Block (not included).

HIGH-VOLUME 105DB SIREN ALARM; When motion is detected, the built-in alarm emits a powerful 105-decibel siren loud enough to startle intruders and alert people nearby. A reliable deterrent to protect your property day or night

Door alarm uses remote controls to set security code for arming disarming; home security system complete with fully programmed main unit and sensors, later if you want to DIY, please factory reset first according to manual, then pair them again or search operation video on YouTube "KERUI Standalone Alarm System Operation Guide" for reference.

100% Wireless & Cordless The XTU doorbell camera Built-in rechargeable battery can last up to 1-2 months so that you won t have to charge the batteries too often and getting the instant battery situation via your phone APP. Camera doorbell are 100% wireless to install and connect, makes you enjoy the convenience of not have to deal with any outlets or tangled mess of wires. Note video doorbell only connect with 2.4GHz Wi-Fi(not support 5GHz Wi-Fi).

Reliable Intrusion Alerts in Real Time Stay informed instantly with the CallToU motion sensor alarm system. Designed to detect movement within your driveway, garage, shed, or shop, this advanced motion detector alarm is perfect for spotting couriers, customers, or intruders. With a 150M wireless range, it offers full coverage without tangled wires. Ideal as a driveway alarm, garage alarm, or shed alarm.

HOSMART ADVANTAGE-30 years+ outdoor driveway alarm wireless driveway alert system produced in our own factory with our leading edge systems technology. Wireless Driveway Alarm Includes 1 Base Receiver and 3 yellow Sensor powered by AA batteries.

36 Ringtones & 5 Welcomes Doorbell Rings Languages 5 welcome languages are selectable in welcome mode. 36 ringtones selectable in doorbell mode. Welcome doorbell Alarm model has 4 level volume adjustable. Color light Lighting mode is silent and has 4 levels of brightness adjustable. Great for people with hearing disabilities or if there is a sleeping baby in your house. The color light model also has 4 colors selectable.

Working Range up to 328 feet (100 meters) between the infrared sensor and receiver allowing you to place it a good distance from the receiver to warn you of arrival and departure of family members, unwanted guests or solicitors, or anyone who visits your home or business