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Tenmars TM-801 CO Meter

Category: CO Meter
Model No.: : TM-801
Product Description

- 4 digits backlit LCD with maximum 1,000 counts.
- Dual display of the readings for CO and Temperature.
- CO range: 0 ~ 1,000ppm.
- Temperature range: -20~50 ºC (-4~122 ºF).
- Easy to calibrate at 100ppm or 500ppm.
- USB datalogger with 8,000 records (TM-802).

TM-801 CO meter is used for measuring the CO levels to 1000ppm.

Carbon monoxide (CO) is a poisonous gas that has no smell, color or taste. But it is very dangerous and reduces the oxygen-carrying capacity of blood that causes you unwell, illness and death.



Carbon monoxide content in the air

Inspiration time

Symptoms and applicable standard

0-1 ppm


Normal background levels.

9 ppm


Maximum indoor air quality level.

35 ppm

8 hours

The average exposure level per U.S. OSHA workplace standards.

50 ppm

8 hours

The maximum average exposure of the U.S. OSHA workplace standards.

0.01%(100 ppm)

2~3 hours

evacuate people from enclosed space if the CO concentration exceeds 100 ppm per OSHA exposure limit.

Mild headache.

0.04%(400 ppm)

1~2 hours

Headache occur in 2.5 hours to 3.5 hours.

0.08%(800 ppm)


Dizziness, nausea, cramps(convulsions).

0.16%(1600 ppm)


Headache, dizziness and will be dead within 2 hours.

0.32%(3200 ppm)

5~10 min

Headache, dizziness, vomiting and will be dead in 30 minutes.

0.64%(6400 ppm)

1~2 min

Headache, dizziness and will be dead within10 to 15 minutes.

1.28%(12800 ppm)

1~3 min

Cause death.


- 4 dgt LCD with maximum 1000 counts.

- Sample rate: 1 time/second

- Data output: USB PC serial interface.

- Max/Min/Average Hold.

- Data Hold.

- Low battery indication

- Auto power off with disable function.

- Adjustable alarm.

- Sample rate: 1 time/second.CO Measurement: 


0 ~ 1000ppm




±5% or ±2ppm


< 2%

Response time※

< 30 seconds.

Zero drift in long term

< 5ppm

Sensitivity drift

< 5% (per year)

Typical sensor life

3 years

Temperature Measurement







Power supply : 1.5V UM-4(AAA) battery × 6 PCS or AC100~240V or DC Adaptor 9V/0.5A(9mm).
Battery life: approx 90 hours.
Operating Temperature & Humidity: -20°C to +50°C, 
Storage Temperature & Humidity : -10°C to +50°C, <70% RH.
Weight: approx 250g (Batteries not included).
Standard accessoriesUM-4(AAA)1.5V battery ×6 PCS, user’s manual,
                                            USB cable (TM-802),  AC100~240V DC9V/0.5A(9mm)×1 (TM-802),
                                            Install CD disk (TM-802)


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