
ALLIS COMMUNICATIONS Page 3 of 8 LHR10&LSS10 Specifications Rev. 1.0 08/2018
1. Electrical Specifications:
Device
Hardware Specifications
LHR10
LSS10
Controller ATmega328/P
Operating Voltage
USB power In 4.5~5.2V--LHR10
12V cable in -- LSS10
LoRa® Chipset SX1276
LoRa® MCU STM32L151,128 KB flash
Frequency 902 - 928 MHz
Transmitting Power 902-928 MHz @ 20 dBm
Transmitting Distance 1 ~ 10 KM @ 0.81 Kbps
Receiving Sensitivity -132 dBm @ 0.81 Kbps
LSS10
PM2.5/ PM10 Sensor
Operating Principle Laser Scattering
Detection1,2 PM2.5 and PM10
Output unit1,2 PM2.5 in μg/m3 and PM10 in μg/m3
Concentration Range 0 μg/m3 to 1,000 μg/m3
Accuracy (at 25°C±5°C)
0 μg/m3 to 100 μg/m3: ±15 μg/m3
100 μg/m3 to 1000 μg/m3: ±15 %
Operating time 20,000 hrs
Laser Class Laser Class 1: IEC/EN 60825-1: 650 nm
ESD ±4 kV contact, ±8 kV air per IEC 61000-4-2
Fast Transient Burst ±0.5 kV per IEC61000-4-4
Radiated Emissions
40 dB 30 MHz to 230 MHz
47 dB 230 MHz to 1000 MHz
Conducted Emissions 0.15 MHz to 30 MHz in compliance with CISPR 14