Wireless smoke detector and audio visual alarm with test button

MD-2106R Focus security meian tech wireless smoke sensor compatible with same brand wireless alarm panel such as ST-IIB, ST-VGT, FC-7688 or wireless siren strobe MD-314R, MD-204R.
It adopts thermistor sensor and photoelectric infrared LED indication, tamper switch button, built-in buzzer, exact detect smog density when it over the standard level (UI 217 / 3.2%/feet), it can make the alarm by itself via built-in buzzer, and also send out the wireless alarm signal to alarm control panel at the same time, low battery indication that make once sound in each 2 hours via built-in buzzer, easy to install on ceiling or wall using the screws with countersink heads which had packed in the package.
thermistor sensor / photoelectric infrared LED
smog sensitivity comply with UI 217 / 3.2%/feet
sent status signal every 15 seconds or 65 seconds
no emit radioactive element
auto send signal when low power voltage or re-setting
built-in buzzer make once sound in each 2 hours when battery low voltage
self-testing indication: infrared LED turn on and then make 2 buzzer sound
alarm indication: infrared LED turn on and around 30 seonds buzzer sound at the same time
power input: 6VDC (CR123A 3.0V Lithium Battery x 2pcs)
static current is 20μA ~40μA / alarm current is 20mA
alarm volume: 85dB at the distance of 10 feet
operating environment: -5C ~ +50C / humidity: 10% ~90%
wireless emitting frequency: 433MHz / 868MHz
wireless emitting range is 100m (in open area)
dimension is Φ105mm / ivory white color
Specification:
Model number: MD-2106R
Battery life time about one year
Power:6V DC CR123A*2
Debugging mode: ASK
Working frequency: 433MHz/868MHz (optional)
Working environment indoor use,-5 to +50℃
humidity 10%-90%
Self test indication: red LED turn on then voice prompt
self test successfully.
Alarm output indication: red LED turn on 5 seconds
then buzzer sound
Battery low voltage indication: sound once in each 2 zones.