Monitor nitric oxide (NO) at the point of inspection with the portable MH-1200H-S-NO gas detector. The instrument uses an electrochemical sensor and diffusion sampling to measure surrounding air. Its rear clip and protective case make it practical to carry during inspection rounds. Choose one of four NO measurement ranges to match the concentration span required by your monitoring procedure.
Choose the NO Measurement Range
Order the 0-20, 0-50, 0-100 or 0-250 ppm configuration. Each range is a separate instrument variant. The standard sampling method is diffusion, so air at the instrument reaches the sensor opening without a built-in pump. An external sampling pump is an optional configuration when the application requires a different sampling arrangement; confirm the intended setup before ordering.
Readings, Alerts and Review
The 128 x 64 monochrome LCD presents gas readings in ppm or mg/m³. Backlight timing is adjustable, and the backlight can switch on during an alarm. Sound, light and vibration alerts provide multiple alarm cues; the sound alarm is rated at 85 dB. Alarm points can be adjusted for the monitoring procedure, while 100 alarm records can be reviewed on the instrument. Zero and self-calibration functions support routine instrument setup.
Technical Specifications
| Customer-facing model | MH-1200H-S-NO |
|---|---|
| Measured gas | Nitric oxide (NO) |
| Sensor principle | Electrochemical |
| Sampling method | Diffusion; external sampling pump optional |
| Available ranges | 0-20, 0-50, 0-100 and 0-250 ppm |
| Display | 128 x 64 monochrome LCD |
| Display units | ppm and mg/m³ |
| Alarm modes | Sound, light and vibration |
| Sound alarm | 85 dB |
| Alarm records | 100, reviewable on the instrument |
| Backlight | Adjustable timing; activates during 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 with protective cover |
Selection and Use Notes
Select the range to suit the expected concentration and your site's alarm and calibration procedure. The detector measures NO, not NO2 or combined NOx. During diffusion use, keep the sensor opening exposed to the air being checked and follow the supplied operating instructions. Product photographs show the shared housing in this series; gas labels on a demonstration screen may differ from the ordered NO 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.
