The MH2000-SO2 pump detector measures sulfur dioxide with an electrochemical sensor. Choose one of three Standard ranges or four High Performance ranges to match the SO2 concentration span required by the measurement task. Both configurations on this page are for applications outside flue-gas environments.
Standard and High Performance Options
| Sensor configuration | Measuring ranges | Application limit |
|---|---|---|
| Standard | 0-20 / 50 / 100 ppm | Not suitable for flue gas |
| High Performance | 0-200 / 500 / 1000 / 2000 ppm | Not suitable for flue gas |
Select the performance grade and measuring range together when ordering. One instrument is supplied with the chosen sensor and span; it does not automatically switch between all seven versions. The High Performance grade identifies a configuration and does not establish a numerical accuracy value. Choose the separate flue-gas-specific SO2 configuration when that application is required.
Sampling, Readings and Controls
An internal pump delivers up to 1 L/min flow with ten adjustment settings. The LCD dot-matrix display shows the gas type, concentration, unit, battery level and time. English and Chinese interfaces are available. Concentration units include μmol/mol, ppm and mg/m³, with 1 μmol/mol equivalent to 1 ppm.
Two adjustable alarm stages use sound, light and vibration outputs. The sound alarm is 85 dB, and blue/red lights indicate the alarm levels. Temperature and pressure compensation, self-check, zero calibration and factory-reset controls support instrument setup. Follow the supplied instructions for the selected SO2 sensor configuration.
Specifications
| Item | Specification |
|---|---|
| Model | MH2000-SO2 |
| Detected gas | Sulfur dioxide (SO2) |
| Sensor configurations | Standard or High Performance |
| Standard measuring range options | 0-20, 0-50 or 0-100 ppm |
| High Performance range options | 0-200, 0-500, 0-1000 or 0-2000 ppm |
| Application limit | Neither configuration is suitable for flue-gas environments |
| 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 |
Recording and Package Choices
Data logging and PC export are optional and excluded from this base configuration. Select the recording option before ordering if stored readings are required. The 300 g instrument uses a rechargeable lithium-polymer battery, with a charging time of 4-6 hours.
Filters, drying accessories and sampling probes are separate package choices. Gallery photographs show the shared pump-detector housing; screen readings are illustrative. A case photograph does not represent two supplied instruments, and a connected cable does not establish included PC export.
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.
