Overview :

LAS-302 series is designed to measure carbon dioxide, temperature, and humidity by LoRa long-range and low-power wireless connectivity. It is an integrated LoRa wireless technology, CO2 sensor, and T/RH% sensor know-how and high-performance MCU solution for various IoT market usage. LAS-302 series has two models, LAS-302V1 and LAS-302V2. They only differ in the CO2 sensor and corresponding power consumption. LAS-302V1 is designed as a low power consumption version with the S11 CO2 module. LAS-302V2 adopt the S8 CO2 module, it could only support AC adapter power-in. Customers can choose according to product needs. With a calibrated CO2 sensor module, compensated temperature and humidity sensor integration, the data is ready for use. Besides, with the low power consumption CO2 module, the wireless devices could be achieved, and it is convenient for installation. It is perfect for monitoring air quality in schools, office buildings, greenhouses, factories, hotels, hospitals, transportation lines, and anywhere high levels of carbon dioxide are generated.

Features :

  • Support multiple air quality sensors (option)
  • Support PIR sensor (option)
  • Wireless transmission to server
  • Easy to replace the battery without special tools
  • Easy settings for user from web configuration
  • Support both battery and AC adapter power in
LAS-302V1

CO2 and T/RH Sensor

Model : LAS-302

CORE

MCU

TLM922S

MEMORY

16 Kbytes

FLASH

128 Kbytes

CO2 SENSOR PARAMETERS

MEASUREMENT RANGE

400 to 10000ppm

ACCURAC

± (70ppm +3% of reading)

Extended range +-10% of reading

RESOLUTION

TEMPERATURE SENSOR PARAMETERS

MEASUREMENT RANGE

0~50°C

ACCURACY

±0.6°C at 5°C to 50°C

± 0.9°C at 0°C to 5°C

RESOLUTION

0.1°C

HUMIDITY SENSOR PARAMETERS

MEASUREMENT RANGE

5~85% RH

ACCURACY

±5.0 %RH at 25°C, 50%RH

RESOLUTION

0.1 % RH

NETWORK COMMUNICATION

LORA

TLM992S

LORA FREQUENCY RANGE

920.6~928MHz for JPN

LORA DATA RATE

0.244~18.2 Kbps

LORA TRANSMIT POWER

-2 ~ +20 dBm

LORA SENSITIVITY

-137 dBm

ANTENNA

Embedded 2dBi

MEASURING BEHAVIOR

MEASURING AND TRANSMISSION INTERVAL

Detect and report every 1 minute(default)

Adjustable period, minute base, up to 60 minutes

I/O

INTERFACE

micro USB power in x1
Reset button x1

POWER INPUT

Micro USB DC5V

MECHANISM

DIMENSION(mm)

95 x 94 x 27 mm

WEIGHT (w/o ACCESSORIES)

140g

ENVIRONMENT

OPERATION TEMPERATURE

0 ~ 50 °C

STORAGE TEMPERATURE

-40 ~ 70 °C

CERTIFICATE

TELEC, VCCI

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