Carbon Monoxide Gas Detector

Carbon monoxide is known as “the silent killer” because the deadly gas is colorless, odorless, and tasteless.Though rare, CO poisoning can occur during a dive as a result of compressor exhaust air contaminating the air intake, or the compressor’s oil overheating and combusting.

Carbon monoxide is a product of combustion. Carbon monoxide can enter a diver’s air if the air compressor intake valve is placed too close to engine exhaust or if the lubricating oil in a malfunctioning compressor becomes hot enough to partially combust, producing carbon monoxide.

Symptoms include nausea, headache, weakness, clumsiness, and confusion. Severe cases of carbon monoxide poisoning can cause seizures, loss of consciousness, or coma.

Carbon Monoxide (CO) Detection Range: 0 – 100 ppm (0.1 ppm resolution)
Response Time (Natural Diffusion): < 60 seconds
Response Time (Forced Air): < 30 seconds
Accuracy / Error Range:
Better than ±2% full scale (0–20 ppm)
Better than ±5% full scale (21–100 ppm)
(Worst case at temperature and humidity extremes)
Display: Bright backlight with high-contrast LCD
Operating Temperature: 32°F – 122°F
Operating Humidity: < 95% RH (non-condensing)
Gas Sensor Type: Electrochemical Gas Sensor
Sensor Life: Approximately 3 years
Calibration Location: Los Angeles, California, USA
Calibration Standard: USA NIST Traceable Gas Source
Recommended Calibration Interval: Every 12 months
Advanced Features: Alarm adjustments and multiple display options
(Instant, TWA, STEL, and Time)
Alarm Indicators: Red LED, 90 dB buzzer, and vibration
Alarm Setpoints: User adjustable
Protection Rating: IP67
Certification: CE
Weight: 5.3 oz (150 g)
Dimensions: 110 mm × 45 mm × 31 mm

CO gas meter
English manual
Calibration cap
Rubber dome
Metal alligator belt clip
NIST USA calibration certificate

Carbon Monoxide: The Silent Killer

Carbon Monoxide Safety

Gas Toxicity During Diving

Forsensic Detectors Carbon Monoxide Detector User Manual