Product Details
The device features a digital display showing:
- CO concentration (PPM)
- Gas concentration (PPM)
- Temperature (°F/°C)
- Air humidity (%)
It also includes:
- Buzzer status indicator
- Indicator icon for CO concentration
- Indicator icon for screen brightness
- Indicator icon for gas concentration
- Indicator light
Control buttons: H button, O button, D button.
Model: HD08-G
Use Instructions
Turn on and turn off the device:
Plug the device into a socket to turn it on automatically. Unplug it to turn it off. After turning on, the combustible gas sensor warms up for 30 seconds, indicated by a countdown on the screen. Once warm-up is complete, the combustible gas indicator icon blinks normally.
Change the temperature unit:
Long press the O button to switch the temperature unit between Celsius (°C) and Fahrenheit (°F).
Turn off or turn on the buzzer (audible alarm):
Short press the D button to toggle the buzzer (audible alarm) on or off.
Adjust the screen brightness or turn off the screen:
Short press the H button to switch the screen brightness between high and low, or to turn off the screen. When the backlight is off, the device continues to monitor gas and carbon monoxide. The green indicator light blinks periodically to show it's working. Press any of the three buttons to light up the screen again.
Self Test:
When the screen is on, short press the O button to initiate a self-test. If the sensor is normal, the green indicator light flashes three times; if not, the red indicator light flashes three times. If the buzzer is normal, it sounds three times; if not, it will not sound.
Carbon Monoxide Alarm
If the carbon monoxide concentration exceeds 50 ppm, the device will sound an audible alarm and the corresponding indicator icon will blink.
- 0-50 ppm: No alarm, green indicator icon blinks.
- 51-200 ppm: Alarm sounds once every 2 minutes, yellow indicator icon blinks.
- 201-999 ppm: Alarm sounds continuously, red indicator icon blinks.
Combustible Gas Alarm
If the device detects combustible gases, it will sound an audible alarm and the corresponding indicator icon will blink.
- No combustible gas: No alarm, green indicator icon blinks.
- Low concentrations: Alarm sounds once every 2 minutes, yellow indicator icon blinks.
- Medium concentrations: Alarm sounds once every 2 minutes, orange indicator icon blinks.
- High concentrations: Alarm sounds continuously, red indicator icon blinks.
Technical Specifications
| Product Model | HD08-G |
| Detectable Combustible Gases | Carbon monoxide, natural gas, liquefied petroleum gas (LPG); methane (CH4), ethane (C2H6), propane (C3H8), butane (C4H10); ethylene (C2H4), propylene (C3H6), butylene (C4H8); acetylene (C2H2), propyne (C3H4), butyne (C4H6), etc. |
| Carbon Monoxide Measuring Range | 0-999 ppm (±5%) |
| Carbon Monoxide Alarm Range | 50-999 ppm |
| Temperature Measuring Range | -10°C to 50°C / 14°F to 122°F (±3%) |
| Air Humidity Measuring Range | 5% to 95% RH (±5%) |
| Data Refresh Frequency | 2 seconds |
| Input Voltage | AC 100-240V/50-60Hz |
| Working Current | 0.5A Max |
| Working Environment Temperature | -10°C to 60°C / 14°F to 140°F |
| Working Environment Humidity | 20% to 80% RH |
| Product Dimensions | 85 x 51 x 33 mm |
| Product Weight | 60 g |
| Packing List | HD08-G x1, user manual x1 |
Cautions for Use
- Keep this product away from water, corrosive liquids, and fire sources.
- Do not use or store this product in environments with temperatures over 60°C.
- Do not disassemble this product; doing so will invalidate the warranty.
- Do not use this product frequently in places with poor air quality, such as dusty environments.
- The maximum service life of this product is approximately 5 years. If used frequently in environments with combustible gas or carbon monoxide, the service life reduces to approximately 3 years. Do not continue to use the product after its service life ends, as the sensor may no longer provide accurate data.
Warranty
Gedsffati offers a one-year warranty against quality problems caused by manufacturing or workmanship defects, excluding disposable batteries or damages from accident, negligence, modification, improper use, or handling.
For any issues with the product, contact Gedsffati-service@outlook.com.
