AM100 series indoor sensor supports three new screen display modes since firmware version 1.17 and later. You can switch it by quickly pressing then releasing the reset button that lies on the top-left corner of back panel. Different mode displays different content.
1. Upgrade AM10x
If your AM10x' firmware version is 1.17 and later, please proceed to Mode Description. To upgrade to 1.17, please follow the guide below.
Firmware download link: https://resource.ursalink.com/firmware/AMXXX.0000.0140.0117.bin
ToolBox configuring software: https://www.ursalink.com/en/software-download
Release note for reference: https://www.ursalink.com/en/ursalink-firmware-release-note/
Step 1: Download firmware .bin file locally, download the latest ToolBox from software centre and run it on Windows.
Step 2: Use a type-C USB cable to connect AM10x to computer. Computer system detects a new USB hardware, and a new port with tag "COMx" will appear under "COM&PORT" section in device manager.
Step 3: Open the port in ToolBox, and go to Maintenance on the left.
Step 4: Click "Browse" to choose the firmware file, and click "Upgrade" to wait for an automatic reboot. If the progress bar stops at 2%, you can close and restart ToolBox program and try again.
2. Mode Description (from top to bottom)
Mode 1 (default): temperature, humidity, time & date
Mode 2: time, CO2, temperature, humidity, illumination, TVOC (no CO2 or TVOC on AM100)
Mode 3: CO2, temperature, humidity, illumination, TVOC (no CO2 or TVOC on AM100)
CO2: Histogram with columns displays the latest reading value. Each column contains up to 40 dots, you can calculate the value by the formula below:
Let N = ColumnHeight, R = CO2Reading;
for N less or equal to 8, R = 200 + 50 × N ppm;
for N more than 8 and less than 40, R = 600 + 25 × (N-8) ppm = 400 + 25 × N ppm.
If CO2 value is between 1001~1200, a warning lighting icon will appear instead of displaying the histogram. If reading value keeps increasing to more than 1200, the area will display a triangle with exclamation mark inside.
Illumination: 5 bars indicates 6~50, 51~100, 101~400, 401~700, 701~701+, unit is lux.
TVOC : 5 bars indicates 101~200, 201~250, 251~300, 301~350, 351~400, unit is ppb. If the value keeps going up above 400, the bars area will display a warning lighting icon.