Combined Combustible Gas and Carbon Monoxide Detector
User Manual
Product Details
Model: PTH-24E
Key Displays:
- Carbon monoxide concentration
- Humidity
- Temperature
- Combustible gas level
- Buzzer status
- Indicator light
- Alarm icon
Key Controls:
- U button: For self-test/restart and temperature unit switching (℃/℉).
- Button for adjusting screen brightness: Controls screen brightness and backlight.
- Button for turning off buzzer (audible alarm): Mutes alarms for low/medium levels; high levels trigger continuous alarms.
- Sensitivity of combustible gas sensor: Adjustable (low S1 for methane, high S2 for propane/butane).
- Detachable power plug
- Lock button for power plug
Use Instructions
- Power: The device turns on automatically when plugged in and off when unplugged.
- U Button Function:
- Short press: Initiates a self-test and restarts the device.
- Long press (3 seconds): Switches temperature units between Celsius (℃) and Fahrenheit (℉).
- Screen Brightness Button Function:
- Short press: Adjusts screen brightness (high/low) or turns off the backlight. The device continues to operate normally with the backlight off.
- Long press (3 seconds): Adjusts the sensitivity of the combustible gas sensor between low (S1, for methane) and high (S2, for propane/butane).
- Buzzer (Audible Alarm) Button Function:
- Short press: Turns the buzzer off or on for low and medium levels of carbon monoxide or combustible gas.
- Note: High levels (CO > 150 ppm or Combustible Gas > 15% LEL) will always trigger audible alarms.
- Long press (3 seconds): Rotates the screen display by 180 degrees.
- Service Life: The device has a maximum service life of approximately 5 years. Continued use after this period may lead to sensor malfunction. A "Sensor life has expired!" warning will be displayed.
Introduction of Alarm Function
1. Carbon Monoxide (CO) Alarms:
- 0-50 ppm: Green indicator light flashes; no audible alarm.
- 51-100 ppm: Orange indicator light flashes; audible alarm every 2 minutes.
- 101-150 ppm: Orange indicator light flashes; audible alarm every 2 minutes.
- 151-999 ppm: Red indicator light flashes; continuous audible alarms.
2. Combustible Gas Alarms:
- 0-5% LEL: Green combustible gas icon flashes; green indicator light flashes; no audible alarm.
- 5%-8% LEL: Yellow icon flashes; orange indicator light flashes; audible alarm every 2 minutes.
- 8%-15% LEL: Orange icon flashes; orange indicator light flashes; audible alarm every 2 minutes.
- >15% LEL: Red icon flashes; red indicator light flashes; continuous audible alarms.
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | PTH-24E |
| Detectable Combustible Gases | Natural gas, Liquefied Petroleum Gas (LPG), Methane (CH4), Ethane (C2H6), Propane (C3H8), Butane (C4H10), etc. |
| Carbon Monoxide Measuring Range | 0-999 ppm (±5%) |
| Temperature Measuring Range | -10℃ to 50℃ / 14℉ to 122℉ (±3%) |
| Air Humidity Measuring Range | 5% to 95% RH (±5%) |
| Sensor Detecting Frequency | Once every 2 seconds |
| Power Supply | AC 100-240V / 50-60Hz |
| Working Voltage & Current | 5V / 1A Max |
| Working Environment | -10℃ to 60℃ / 14℉ to 140℉, 20% to 80% RH |
| Product Dimension | 105 x 55 x 52 mm |
| Product Weight | 76 g |
| What's in the box | Gedsffati PTH-24E x1; user manual x1 |
Cautions for Use
- Keep the product away from water, fire, and heat.
- Do not use in environments with temperatures over 80℃ or humidity over 80% RH.
- Avoid dusty environments; regularly check and clear air holes.
- Keep away from synthetic chemical detergents, alcohol, perfumes, dust, water vapor, oil fumes, and strong sunlight, as these can interfere with sensor function.
- Do not install in corners, near large furniture, or in areas with poor air circulation.
- It is highly recommended to perform a self-test regularly to ensure proper function.
- The product has a maximum service life of approximately 5 years. Do not continue using it after this period as the sensor may no longer function normally.
Warranty
A 2-year warranty is offered against quality problems caused by manufacturing or workmanship defects. This excludes disposable batteries or damages resulting from accident, negligence, modification, improper use, or handling.
Manufacturer and Representatives
Manufacturer: Shenzhenshi Yidetong Technology Co., Ltd.
Address: 2806-X96, Foreign Trade Group Building, 239 Zhongxing Road, Dongmen Street, Luohu District, Shenzhen, Guangdong 518000, China.
Email: yidetong@outlook.com
EU Authorized Representative: E-CrossStu GmbH
Address: Mainzer Landstr. 69, Frankfurt am Main, Hessen 60329, Germany.
Email: E-CrossStu@web.de
UK Authorized Representative: Evatost Consulting Ltd.
Address: Office 101, 32 Threadneedle Street, London, EC2R 8AY, United Kingdom.
Email: contact@evatmaster.com
Product Disposal
This product is electrical and electronic equipment. Do not dispose of it with normal household waste to prevent potential hazards to the environment and human health. Please separate it from other waste for environmentally friendly recycling.
