Gas detectors alarm on koopower

It is so dangerous when the coal gas leaked or a fire break out,or other danserous about gas ,if we haven't do any protection about i t,we always get died,but Koopwer can provide a system which can prevent you from gas dangerous ,it is  Gas Detector Alarm,it can send out alarm when carbon monoxide or other dangerous leaked ,see detail below

Gas Detector Gas Leakage Alarm Warning Alarm System Gas Detector Alarm

Features:

• 7 years lifetime,high accurate electrochemical sensor
• Good quality, good reliability & high stability;
• Power Supply : 3*1.5V AA batteries;
• 85 decibel alarm sound;
• Alarm Style :Per EN50291;
• The sensitivity and time:
• 50ppm, alarm in 60-90 minutes
• 100ppm, alarm in 10 ~ 40 minutes
• 300ppm, alarm in 3 minutes
• Simple installation;
• LCD display;
• Low battery warning feature;
• Test/reset button;
• Dimension :119mm x37.5mm, Weight: 130g.

You will get all as the picture shown

• 1 x Carbon Monoxide Alarm
• 2 x Screws
• see here:http://www.koopower.com/new-co-poisoning-gas-carbon-monoxide-sensor-alarm-detector-lcd-uk.html

New CO Poisoning Gas Carbon Monoxide Sensor Alarm Detector LCD UK

A perfect item for protecting your family from the dangers of carbon monoxide Advanced level of protection, easy to read with the digital display,
even in low light conditions.

Decripition:
Loud 85 decibel alarm
Permanent carbon monoxide sensor
The alarm sound pattern is four short alarm beeps. The red LED will flash while in the alarm mode.
One chirp every 30 seconds in an indication that the battery is low (need replacement) (green LED still flashes once every 30 seconds).
Test/Reset button to test the unit electronics and verifies proper unit operation and reset the unit during CO alarm.
Alarm memory feature: If the unit ever alarms, pressing the button, green LED will flashes once every second for one minute and the peak alarm level will be indicated on the LCD.
Green and red LED lights that indicate normal operation and alarm status.
The unit will sound chirp and red LED flashes once as power up.
Green LED: Flashes every 30 seconds to indicate the unit is operating properly. The green LED will also flash before CO reading is taken and when any button is pressed. 
Red LED: When a dangerous level of carbon monoxide is detected the red LED will pulse and a loud alarm pattern will sound. 
The carbon monoxide alarm pattern is 4 short beeps, followed by 5 seconds of silence, followed by 4 short beeps with a corresponding red LED flash. This cycle will continue for 4 minutes and then change to 1 cycle every minute until the device is reset or the CO is eliminated. 


Specification:

Power Supply	3 AA size batteries (not included)
Sensitivity & Time	50ppm, alarms within 60~90 minutes 100ppm, alarm within 10~40 minutes 300ppm, alarms within 3minutes
Standby Current	<50uA
Alarm Current	<50mA
Operation Ambient Condition	5~40ºC, 20~90%R.H
Color	White
Size	10 x 3.5cm

You will get all as the picture shown
1 x Carbon Monoxide Alarm 
2 x Screws 
1 x English User Manual 

see here:http://www.koopower.com/new-co-poisoning-gas-carbon-monoxide-sensor-alarm-detector-lcd-uk.html

Gas Detector Gas Leakage Alarm Warning Alarm System Gas Detector Alarm

Features:

• Brand New and High Quality.
• High Reliability Sensor
• Auto Reset after Alarm
• SMT Design, High Stability

Specification:

Operation Voltage	DC9-16V or AC 220V
Static Current	≤90mA
	≤ 30mA(low power consumption type )
Alarm Current	≤ 100mA
	≤ 40mA(low power consumption type )
Warm-up Time	about 180S
Alarm Level	10土5 (%LEL) ; 0.5士0.25 (VOL%)
Alarm Indicator	Red LED Flash
Failure Indicator	Yellow LED on & beeperlong- buzz
Sound Level	≥ 85dB/m
Operation Temperature	-10°C~+50°C
Environment Humidity	≤ 95 % RH (no congelation)
Alarm Output	Relay output/sound & flash alarm
	RF 315MHz or 433MHz (wireless type)
Radio Distance	100m in open area (wireless type)
Execute Criterion	GB15322.2-2003
Product Dimension	115.00*72.00*41.00mm(L*W*H)
Net Weight	184.00g
Package Dimension	136.00*107.00*61.00mm(L*W*H)
Gross Weight	255.00g

see detail here:http://www.koopower.com/gas-detector-gas-leakage-alarm-warning-alarm-system-gas-detector-alarm.html