The DIGOO DG-Lada is a cheap & compact PIR sensor with an embedded siren. It can be powered by 3*AAA batteries or by 5V micro usb cable.
The package contains the PIR/Siren, a remote control with 4 buttons and a windows/door sensor.
An external siren can be added with a 3.5mm jack (5V 200mA max).
Nevertheless for the size the embedded siren is very loud!!
It is a complete alarm system, you can add up to 20 433mhz sensors (PI, door…) and can act also as a ringbell.
You can add different remote controls with the following functions:
You can add up to 20 sensors so as to trigger the siren as:
- Common detector (act the siren sound if armed if not act the doorbell sound)
- Emergency detector (act the siren sound )
- Doorbell (act the doorbell sound whatever the system mode)
The device is delivered with a mini but clear user manual.
This siren, the door sensor and the remote are compatible with:
- ZgatewaySRFB (Sonoff RF Bridge)
The siren/PIR is a receiver, it can be operated by OMG with MQTTto433 commands. The PIR sensor doesn’t emit an RF signal when triggered (at contrary to the door/window sensor and the remote supplied).
The datasheet indicates the following characteristics:
- Power DC 5V / 3 * AAA
- Current <300uA
- Work current <100mA
- Switch off current <40uA
- Detecting Distant <8
- Detect Angle 110°
- Alarm sound 125dB
- Working humidity <80%
See the device list 'column “Days of autonomy”
The sleep current is not constant, I need to plug an oscilloscope to measure it.
ringbell 40mA 2s
siren 80-90mA continuously
Door Sensor Disassembled
At final a very interesting compact Siren and PIR sensor, affordable and with a lot of option. It can be a good starter kit in the world of 433mhz and OpenMQTTGateway. Recommended!