- 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.
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.
CO LEVELS AND STANDARD:
| 
 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)  | 
 45-min  | 
 Dizziness, nausea, cramps(convulsions).  | 
| 
 0.16%(1600 ppm)  | 
 20-min  | 
 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.  | 
- Backlit 4 dgt LCD with maximum 1000 counts.
- Sample rate: 1 time/second
- Max/Min/Average Hold.
- Data Hold.
- Low battery indication
- Auto power off with disable function.
- Adjustable alarm.
- Sample rate: 1 time/second.
At 23℃±0.5℃, RH<75%
CO Measurement: 
| 
 Range  | 
 0 ~ 1000ppm  | 
| 
 Resolution  | 
 ±1ppm  | 
| 
 Accuracy  | 
 ±5% + 2ppm  | 
| 
 Repeatability  | 
 < 2%  | 
| 
 Response time※  | 
 < 30 seconds.  | 
| 
 Zero drift in long term  | 
 < 5ppm  | 
| 
 Sensitivity drift  | 
 < 5% (per year)  | 
| 
 Typical sensor life  | 
 3 years  | 
Temperature Measurement:
| 
 Range  | 
 -20~50℃/-4~122℉  | 
| 
 Resolution  | 
 ±0.1℃/±0.1℉  | 
| 
 Accuracy  | 
 ±1.0℃/±1.8℉  | 
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.
Dimension: 156×73×35mm(LxWxH).
Weight: approx 250g (Batteries not included).
Standard accessories: UM-4(AAA)1.5V battery ×6 PCS, user’s manual,
                               
                                     AC100~240V DC9V/0.5A(9mm)×1 (TM-802), 
                                    

 
			
				
		TEN210-Heavy-Duty Handheld Carbon Monoxide Meter