The MH2000-CO is a pump carbon monoxide detector for portable concentration measurement. Its electrochemical sensor measures CO, while an internal pump brings an air sample into the instrument. Choose a 0-500, 0-1000 or 0-2000 ppm version to match the measurement span required for your task. Each range is a separate supplied configuration.
Select the CO Measurement Range
The three versions share the pumped sampling platform, display and controls. The selected range defines the measurement span of the instrument you order; it is not a menu setting that changes one version into another.
| Order option | Measured gas | Sampling method |
|---|---|---|
| 0-500 ppm | Carbon monoxide (CO) | Internal pump |
| 0-1000 ppm | Carbon monoxide (CO) | Internal pump |
| 0-2000 ppm | Carbon monoxide (CO) | Internal pump |
The 0-1000 ppm version has a resolution of 1 ppm. The detector measures carbon monoxide, not carbon dioxide. Choose the range using your measurement requirements, alongside the alarm settings and checks specified by your monitoring procedure.
Sampling, Readings and Alarms
Pump suction is adjustable in ten levels, with a maximum flow of 1 L/min. The dot-matrix LCD shows the gas type, concentration, unit, time and battery status. English and Chinese interfaces are available, and concentration units can be switched between ppm and mg/m3.
Sound, light and vibration provide alarm indication. The audible alarm is rated at 85 dB, and the two-stage alarm set points are adjustable. Temperature and pressure compensation are built into the measurement functions. Instrument controls include a self-check function, zero calibration and a factory reset.
Specifications
| Item | Specification |
|---|---|
| Model | MH2000-CO |
| Measured gas | Carbon monoxide (CO) |
| Sensor principle | Electrochemical |
| Range options | 0-500 ppm, 0-1000 ppm or 0-2000 ppm |
| Sampling | Internal pump, up to 1 L/min |
| Pump adjustment | 10 suction levels |
| Resolution, 0-1000 ppm version | 1 ppm |
| Display | LCD dot-matrix display |
| Displayed information | Gas type, concentration, unit, time and battery status |
| Interface languages | English and Chinese |
| Alarm modes | Sound, light and vibration |
| Audible alarm | 85 dB |
| Alarm levels | Two stages with adjustable set points |
| Concentration compensation | Temperature and pressure compensation |
| Controls | Self-check, zero calibration and factory reset |
| Battery | 3.6 V, 2300 mAh rechargeable lithium-polymer |
| Charging time | Approximately 4-6 hours |
| Operating temperature | -20 to 50 Degree C |
| Operating humidity | 0-95% RH, non-condensing |
| Ingress protection | IP65 |
| Housing | Engineering plastic |
| Dimensions | 205 x 75 x 32 mm |
| Approximate instrument weight | 300 g |
Power and Package Contents
A 3.6 V, 2300 mAh rechargeable lithium-polymer battery powers the detector. Charging takes approximately four to six hours. The instrument measures 205 x 75 x 32 mm and weighs about 300 g; its engineering-plastic housing is rated IP65.
The package includes the detector, a charging/data cable, an instruction manual and an aluminum carrying case. Follow the instrument instructions for setup, calibration, checks and alarm handling. Product photographs show the shared housing of this series; demonstration gas labels and screen readings may differ from the selected CO configuration.
Free Shipping
Free shipping is available on all orders. Shipping methods and carriers may vary depending on the destination, order details, and available logistics options. Full Shipping Policy
Returns Policy
For returns and refunds, please review our full Refund Policy before placing an order. If you need help with an order, contact us before your order has shipped whenever possible. Full Returns Policy
When Will My Order Ship?
For Standard Shipping, we aim to pack and ship out your order within 4 business days. During special periods, such as heavy order processing or local inventory shortages that require deployment, please expect it to take an additional day or two for processing. We ship five days a week, Monday through Friday.
You will receive a shipment confirmation with tracking information via email when your order has shipped. Once you receive this email, we cannot change or cancel your order.
Can I Change The Shipping Address On My Order?
Please contact us immediately via email if you realize that you gave us the wrong shipping address — if it hasn't shipped yet, we might be able to correct it before it goes out the door.If your order ships to the address provided and is returned to us as undeliverable, then you are responsible for paying the cost of shipping again to resend it to you. If you decide you do not want your order reshipped, we'll refund you for the products less the original shipping charges, once your order returns to our warehouse. We'll reach out to you to coordinate your options before re-shipping.
If your order ships to an incorrect address provided at the time the order is placed and is not retrievable, we are not responsible and cannot offer reimbursement.
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Let customers speak for us
My first impression after opening and installing batteries was that this meter is very well built considering the price and manufacturer. I had read some reviews stating that it's amp measurements were not accurate below 5 amps, I haven't seen any issues in any measurements I've taken, even side by side with my fluke meters. I've successfully taken accurate amp, voltage and continuity measurements with this ETCR6920B, the display is nice and legible. I haven't tried storing data and making transfers to a PC yet, the soft case is good enough for storage on a shelf and the test leads are of good quality and rated for 1000v. There's nothing bad to say about this meter especially when you consider the price, it's a really great meter.
Works as described.
