The MH2000-SO2 flue-gas-specific detector measures sulfur dioxide with an electrochemical sensor and internal pump sampling. Its High Performance, interference-resistant configuration is available in five ranges: 0-200, 0-500, 0-1000, 0-2000 and 0-5000 ppm. One single-gas instrument is supplied with the measuring span selected when ordering.
Select the Flue-Gas Sensor and Range
Match the measuring span to the sulfur dioxide concentration required by the sampling procedure. The supplied instrument does not automatically switch between the five order options. Interference resistance identifies this sensor configuration and does not establish complete immunity to every interfering gas.
The flue-gas-specific sensor serves a different application from the Standard and High Performance SO2 versions designated unsuitable for flue gas. A 0-5000 ppm span is also available in a separate biogas-specific configuration. Choose the application and sensor configuration together, rather than selecting by measuring span alone.
Sampling Arrangement
The internal pump delivers up to 1 L/min flow with ten adjustment settings. Sampling probes, filters and drying accessories are separate package choices. The detector's operating temperature is -20°C to 50°C. This is the instrument environment range and does not establish a temperature rating for a probe placed in a hot flue.
The housing measures 205 x 75 x 32 mm and weighs 300 g. A rechargeable lithium-polymer battery powers the instrument. Data logging and USB export are optional and excluded from this base configuration. Select the recording option before ordering if stored measurements are needed.
Specifications
| Item | Specification |
|---|---|
| Model | MH2000-SO2 |
| Detected gas | Sulfur dioxide (SO2) |
| Configuration | High Performance, flue-gas-specific, single-gas |
| Measuring range options | 0-200, 0-500, 0-1000, 0-2000 or 0-5000 ppm |
| Interference resistance | Interference-resistant sensor configuration for flue-gas SO2 measurement |
| Sampling package | Application-specific probe, filter and drying accessories are separate choices |
| Sensor principle | Electrochemical |
| Sampling method | Internal sampling pump |
| Pump flow | Up to 1 L/min |
| Pump adjustment | 10 settings |
| Display | LCD dot matrix; gas type, concentration, unit, battery level and time |
| Operating languages | English and Chinese |
| Concentration units | μmol/mol / ppm / mg/m³; 1 μmol/mol = 1 ppm |
| Alarm outputs | Sound, light and vibration |
| Alarm stages | Two |
| Alarm setpoints | User adjustable |
| Sound alarm | 85 dB |
| Alarm lights | Blue for low alarm; red for high alarm |
| Measurement compensation | Temperature and pressure compensation |
| Instrument controls | Self-check, zero calibration and factory reset |
| Battery | 3.6 V, 2300 mAh rechargeable lithium polymer |
| Charging time | 4-6 hours |
| Operating temperature | -20°C to 50°C |
| Operating humidity | 0-95% RH, non-condensing |
| Protection rating | IP65 |
| Dimensions | 205 x 75 x 32 mm |
| Instrument weight | 300 g |
| Data recording / PC export | Optional; excluded from this base configuration |
Readings and Alerts
The LCD dot-matrix display shows the gas type, concentration, unit, battery level and time. English and Chinese interfaces are available. Two alarm stages have adjustable setpoints, with sound, light and vibration outputs. Temperature and pressure compensation, self-check, zero calibration and factory-reset controls support setup.
Follow the supplied instructions for the SO2 sensor and sampling arrangement. Gallery images show the shared housing. A case photograph does not represent a two-instrument package or establish included sampling probes.
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.
