This portable sulfur dioxide gas detector measures SO2 in surrounding air with an electrochemical sensor. The MH-1200H-S-SO2 uses diffusion sampling and comes in three measurement spans: 0-20, 0-50 and 0-100 ppm. Its rear clip keeps the instrument accessible during inspection rounds, while the protective cover surrounds the housing.
SO2 Readings and Range Selection
Choose the measurement span required for your SO2 monitoring procedure. Each range is a separate configuration of the same instrument. The 128 x 64 monochrome LCD displays gas information and concentration, with ppm and mg/m³ units available. Backlight timing can be adjusted, and the display illuminates automatically during an alarm.
Alarm Indication and On-Device Records
Sound, light and vibration provide three forms of alarm indication. The audible alarm is rated at 85 dB, and alarm set points can be configured for the monitoring procedure. The detector retains 100 alarm records for review on its screen, allowing the operator to look back at recorded alarm events without connecting to a computer. Zero and self-calibration functions, battery status checks and a factory reset function are available through the instrument controls.
Technical Specifications
| Model | MH-1200H-S-SO2 |
|---|---|
| Measured gas | Sulfur dioxide (SO2) |
| Sensor principle | Electrochemical |
| Sampling | Diffusion |
| Range options | 0-20, 0-50 and 0-100 ppm |
| Display | 128 x 64 monochrome LCD |
| Display units | ppm and mg/m³ |
| Alarm modes | Sound, light and vibration |
| Audible alarm | 85 dB |
| Alarm history | 100 records viewable on the instrument |
| Backlight | Adjustable timing; automatic illumination during an alarm |
| Battery | 2300 mAh rechargeable lithium-polymer |
| Operating temperature | -20 to 50 Degree C |
| Ingress protection | IP65 |
| Dimensions | 131 x 83 x 35 mm |
| Approximate instrument weight | 240 g including protective cover |
Use and Configuration Notes
Follow the instrument instructions and the monitoring procedure for calibration, checks and alarm settings. Diffusion measurement requires exposure of the sensor inlet to the air being checked. The compact housing measures 131 x 83 x 35 mm and weighs approximately 240 g with its protective cover; power is supplied by a rechargeable 2300 mAh battery. Product photos illustrate the shared housing used in this series. Gas labels on the demonstration screen may differ from the selected SO2 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.
