How to Prevent CO Sensor Failure with the DH-301 Electrochemical Sensor Carbon Monoxide Alarm

Carbon monoxide (CO) is a colorless and odorless gas that poses a serious safety threat. A reliable carbon monoxide alarm is essential for protecting lives, but many users overlook the risk of CO sensor failure caused by dust, humidity, or aging sensors.

Why Electrochemical CO Alarms Are More Reliable

The electrochemical sensor carbon monoxide alarm is known for its high accuracy, stability, and long lifespan. It uses a precise chemical reaction to detect even low CO levels, minimizing false alarms and ensuring consistent performance. This is why EN50291 certified CO alarms widely adopt this technology for both residential and commercial use.

DH-301 by Hangzhou Deheng Smart Electric

The DH-301, developed by Hangzhou Deheng Smart Electric Co., Ltd., is a high-quality CO alarm built with an imported Japanese electrochemical sensor. It provides accurate detection, smart silence, and alarm memory to record past alerts.

Key features include:

① High-accuracy electrochemical CO sensor

② The product sensitivity features automatic compensation

③ Smart silence and alarm memory functions

④ 85dB sound level and LED indicators

⑤ Complies with EN50291 safety standards

Compact and easy to install, the DH-301 carbon monoxide alarm is ideal for homes, hotels, and offices seeking reliable 24/7 protection.

How to Prevent CO Sensor Failure

① To maintain performance:

② Install the alarm away from vents and direct airflow.

③ Test it monthly using the test/hush button.

④ Keep it clean and avoid chemical exposure.

⑤ Replace the unit at the end of its service life (10 years).

⑥ Trusted Protection from Hangzhou Deheng Smart Electric

With years of expertise in CO and smoke detection, Hangzhou Deheng Smart Electric focuses on precision, reliability, and safety. The DH-301 embodies this commitment — a durable, smart, and efficient carbon monoxide detector designed to keep families safe from the invisible dangers of CO gas.