Aurora Touch-Button Air Quality Monitor DM155C

The Aurora store offers the Dienmern DM155C for indoor use. Aurora is the storefront; this is the manufacturer’s published model, not an Aurora-designed original. The Dienmern DM155C is a large, slim indoor air monitor with touch keys, listed at 240 × 120 × 20 mm and 428 g. It displays carbon dioxide (NDIR, 400–5000 ppm), PM1.0/PM2.5/PM10 (laser scattering), electrochemical formaldehyde, semiconductor TVOC, AQI, temperature, humidity, and time. Features listed by the manufacturer include brightness adjustment, manual calibration, an alarm, and Celsius/Fahrenheit switching. A 3000 mAh battery charges over Type-C. It is a room display, not a medical or life-safety device.

Best for

A large, slim indoor display for a desk, shelf, or wall-facing placement in a living room or office, with touch keys and a broad parameter list.

Specifications

The following details are stated according to the manufacturer. They have not been independently tested by Aurora. Fields not given on the official page are omitted.

• Measures CO2, PM2.5, PM10, PM1.0, AQI, HCHO, TVOC, temperature, humidity, and time
• CO2: NDIR, 400–5000 ppm; PM: laser scattering, 0–999 µg/m³
• HCHO: electrochemical, 0.001–1.999 mg/m³; TVOC: semiconductor, 0.001–9.999 mg/m³
• Touch-screen buttons, brightness adjustment, manual calibration, alarm, and Celsius/Fahrenheit, as listed
• Power: 3000 mAh rechargeable battery, Type-C charging; Type-C cable included
• Size: 240 × 120 × 20 mm; weight 428 g; white ABS

Power and connectivity

• Power: 3000 mAh rechargeable battery, Type-C charging; Type-C cable included

Limitations

• This is an indoor air or climate monitor, not a medical device, and not a life-safety smoke or carbon monoxide alarm.

FAQ

What does this model measure?

According to the manufacturer, it displays carbon dioxide (CO2), temperature, humidity, PM2.5, PM10, PM1.0, formaldehyde (HCHO), TVOC and AQI.

Does it use Wi-Fi or an app?

The official manufacturer page does not list Wi-Fi, app, or Matter connectivity for this model.

Is this a medical or life-safety device?

No. It is an indoor air or climate monitor. It is not a medical device and is not a smoke or carbon monoxide life-safety alarm.

Manufacturer

Shenzhen Langdeli Technology Co., Ltd. (Dienmern), model DM155C. Official product information: https://www.dienmern-instrument.com/air-quality-detector-new.html.