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MD368 Series UART Smoke Alarm

MD368 optical smoke alarm is designed to meet the needs of applications of radio linked operating systems. Not only the alarm offers aesthetically appealing design but also comes with UART output to be integrated with RF module. The MD368 series can either serve as a smoke or smoke / heat combo alarm, or serve merely as heat alarm. MD368 has a 10-year lithium battery option.

Approvals
EN14604 / UL217

Definition of The Model Name

Smoke only	MD368S, MD368ST (10 year type)
Heat only	MD368H, MD368HT (10 year type)
Combo smoke and heat	MD368SH, MD368SHT (10 year type)

Features and Benefits

Optical smoke detector.
With optional heat detection.
Self- diagnostic sensor test.
Low power consumption.
Low battery warning signal.
Temperature compensation.
Analogue sensitivity and battery capacity level output.
Some functions ( Test key, LED or Buzzer )can be utilized by RF via UART interface.
4 PIN connector connecting for RF board.
Capable of connecting with operating system control panel.
IoT / Smart Home, Home Security Applications.

Definition of The Model Name

Smoke only : MD368S, MD368ST (10-year type)
Heat only : MD368H, MD368HT (10-year type)
Combo smoke and heat : MD368SH, MD368SHT (10-year type)

Detector w/UART interface available for wireless system and IOT application:

Model Name	BatteryType			Battery Life
Model Name	Panasonic CR123A Lithium 3.0V * 1 (replaceable)	Energizer L91 Lithium 1.5V AA * 2 (fixed, non-replaceable)	Additional Panasonic Lithium CR123A 3.0V *1 for RF module use (replaceable)	Additional Panasonic Lithium CR123A 3.0V *1 for RF module use (replaceable)
MD368SB1	for detector & RF module use			1.2 years
MD368STB3		for detector use	V	D: 10 years RF: 1.2 years
MD368HB1	for detector & RF module use			1.2 years
MD368HTB3		for detector use	V	D: 10 years RF: 1.2 years
MD368SHB1	for detector & RF module use			1.2 years
MD368SHTB3		for detector use	V	D: 10 years RF: 1.2 years

MD368S Detector Specifications

Model:	MD368SB1、MD368STB3	Sound Level:	85dB/3M
Description:	Optical smoke detector	Sensitivity:	Smoke: EN14604 UL217/268
Rating Voltage:	DC 3V, DC 2.6~2.7 Low voltage	Operating Temperature:	0℃~50℃
Standby Current:	25uA	Operating Humidity:	5%~90%
Start Current:	5mA	Heat Alarm Temperature:	NA
Alarm Current:	60mA(max)	Dimensions:	120 X 52.45 mm
Sensitivity Specifications
Smoke Sensitivity range		Heat Temperature range
EN14604 0.08dB/m~0.12dB/m	UL217/268 1.25%/ft~2.31%/ft	NA	NA

MD368H Detector Specifications

Model:	MD368HB1、MD368HTB3	Sound Level:	85dB/3M
Description:	Heat detector	Sensitivity:	Heat : EN54-5, UL521
Rating Voltage:	DC 3V, DC 2.6~2.7 Low voltage	Operating Temperature:	0℃~50℃
Standby Current:	25uA	Operating Humidity:	5%~90%
Start Current:	5mA	Heat Alarm Temperature:	FT
Alarm Current:	60mA(max)	Dimensions:	120 X 52.45 mm
Sensitivity Specifications
Smoke Sensitivity range		Heat Temperature range
NA	NA	EN54-5 FT:A2S Refer to annex-Table 1	UL521 Temperature Rating: At Ordinary Refer to annex-Table2

MD368SH Detector Specifications

Model:	MD368SHB1、MD368SHTB3	Sound Level:	85dB/3M
Description:	Optical smoke detector Heat detector	Sensitivity:	Smoke: EN14604 UL217/268 Heat : EN54-5, UL521
Rating Voltage:	DC 3V, DC 2.6~2.7 Low voltage	Operating Temperature:	0℃~50℃
Standby Current:	25uA	Operating Humidity:	5%~90%
Start Current:	5mA	Heat Alarm Temperature:	FT
Alarm Current:	60mA(max)	Dimensions:	120 X 52.45 mm
Sensitivity Specifications
Smoke Sensitivity range		Heat Temperature range
EN14604 0.08dB/m~0.12dB/m	UL217/268 1.25%/ft~2.31%/ft	EN54-5 FT:A2S Refer to annex-Table 1	UL521 Temperature Rating: At Ordinary Refer to annex-Table2

Table 1 . EN54-5 Respone time limits

Rate of rise of air temperature
	Class A2 detector response time
	Lower limit		Upper limit
(OC/min)	min	s	min	s
1	29	0	46	0

Table 2 . UL539 Temperature classifications

Temperature classification
Ordinary	Operating temperature limit
	Minimum		Maximum
	OF	OC	OF	OC
	128	53.3	165	73.9