®
SM-UART-01L+
Laser Dust Sensor
PM2.5
Telaire SM-UART-01L+ Laser Dust Sensor detects dust particle concentration in air by using an optical
sensing method. A laser light emitting diode (laser LED) and a photosensor are optically arranged in the
device. The photosensor detects the reflected laser LED light by dust particles in air, including particle sizes
below PM2.5. The dust sensor can detect small particles, such as cigarette smoke, and distinguish small
particles, such as smoke from large house dust, by the pulse pattern of the signal output.
Applications
• Detection of dust in the air for Indoor Air Quality
Monitoring
•
Air cleaners and air purifiers
• Air conditioners and HVAC
• Outdoor dust monitoring
Features
•
Fast response（≤15s（
•
High accuracy（≤±15%（
• Digital UART output
•
Ultra-compact (43mm L x 45mm W x 18mm H)（
Amphenol
Advanced Sensors
SM-UART-01L+ Dust Sensors
Electrical Parameters
Absolute Maximum Ratings
Parameter
Supply Voltage
Operating Temperature
Storage Temperature
Operating Humidity
[1]
Storage Humidity
[1]
Symbol
V
CC
T
opr
T
stg
RH
opr
RH
stg
Rating
4.8 ~ 5.2
-10 ~ 50
-20 ~ 70
35 ~ 85
35 ~ 85
Unit
V
°C
°C
%
%
Block Diagram
LASER
TRANSMIT
LASER
RECEIVER
Electro-Optical Characteristics
Parameter
Particle Size
Detection Range
Resolution
Detection Error
[2]
Response Time
Supply Voltage
Current Consumption
Signal Output (RX, TX)
[1] Non-Condensing
2
0 ~100ug/m
3
> 100ug/m
3
Symbol
D
D
reg
R
D
err
t
rsp
V
CC
I
CC
Minimum
0.3
1
-
-
-
-
-
Typical
2.5
-
1
-
-
10
5
Ripple<30mV
-
Maximum
10
999
-
+/-15
+/-15
-
100
Unit
um
ug/m
3
ug/m
3
ug/m
3
%
s
V
mA
L<0.8 @ 3.3V, H>2.7 @ 3.3V
[2] Testing at T=25°C, RH=40-60%
SM-UART-01L
+
Electrical Characteristics
Connector
Name
Connector
Housing
Terminal
Part No.
A1251WR-8P
A1251H-8P
A1251-TP
Description
Manufacturer
1.25mm pitch
CJT
Alternative Connectors
Part No.
440146-8
10114826-00008LF
Maker
TE
Amphenol FCI
PIN MAP
PIN1
PIN2
PIN3
PIN4
PIN5
PIN6
PIN7
PIN8
NC
NC
NC
TXD
RXD
NC
GND
VCC
Not connected
Not connected
Not connected
UART Transceiver @ 3.3V TTL
UART Receiver @ 3.3V TTL
Not connected
Ground
Input supply voltage
PIN1
PIN2
PIN3
PIN4
PIN5
PIN6
PIN7
PIN8
NC
NC
NC
TXD
RXD
NC
GND
VCC
Communication Protocol
UART Serial Configuration
Baud rate
Data bits
Parity
Stop bits
9600 bps
8
None
1
See Application Guide for full detail of protocol. (Document ID: AAS-916-136A)
3
Amphenol
Advanced Sensors
www.telaire.com
www.amphenol-sensors.com
© 2018 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice.
Other company names and product names used in this document are the registered trademarks or
trademarks of their respective owners.
AAS-920-706B - 07/2018
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Amphenol
:
SM-UART-01L+
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