Select the MH-1200H-S-O2 Diffusion Variant
The MH-1200H-S-O2 is the diffusion-sampling oxygen option in this selection. Choose the listed range variant for the expected O2 measurement and compare the concentration display and alarm-record functions. If a pumped sample is required, the external-pump arrangement is a separate package question.
Listed Purchase Options
| Option | SKU |
|---|---|
| 0-25%Vol | INS03-8107 |
| 0-30%Vol | INS03-8108 |
Select one listed option. Different ranges or pump configurations are separate supplied versions; they are not all combined in one unit.
Questions That Help You Choose
Which listed range variant suits the reading?
Choose the measuring-range option, then confirm the corresponding resolution for that option; the alternatives are not one combined span.
Is an external pump needed?
The source listing supports an external sampling arrangement. Confirm whether the pump and accessories are part of the selected package.
What distinguishes it from MH2000-O2?
This model lists diffusion sampling; the MH2000 listing has an internal pump. Match the sampling arrangement to the work before comparing prices.
For the buying comparison, read pump vs. diffusion selection and single-gas vs. multi-gas comparison.
Compare MH2000 internal-pump O2 option.
Compare the Oxygen Purchase Options
The K-100A oxygen detector has one listed O2 option, while this MH-1200H-S-O2 page lists separate range variants and diffusion sampling. Compare the required concentration span and package. If the purchase depends on a pump, compare the explicitly described MH2000 internal-pump arrangement rather than inferring a pump from a handheld design.
Product Overview
The MH-1200H-S-O2 is a portable oxygen gas detector for checking O2 concentration in field, facility, and confined-space monitoring tasks. It supports diffusion sampling and is available in 0-25% Vol and 0-30% Vol measuring-range variants.
Key Features
- Measures oxygen concentration with selectable 0-25% Vol or 0-30% Vol range variants.
- Diffusion sampling, with support for an external sampling pump when that setup is required.
- Sound, light, and vibration alarm modes.
- LCD dot matrix display showing gas type, real-time concentration, and gas unit.
- Stores alarm records for later review on the device.
- Rechargeable 3.6 V 2300 mAh lithium polymer battery.
Best For
- Oxygen level checks in industrial, inspection, and facility monitoring environments.
- Users who need a compact O2 monitor with visible, audible, and vibration alarms.
Details & Specs
| Model | MH-1200H-S-O2 |
| Detected gas | Oxygen (O2) |
| Measuring range | 0-25% Vol or 0-30% Vol |
| Resolution | 0.01% Vol or 0.1% Vol |
| Precision | ≤ ±3% F.S. |
| Sampling | Diffusion; external sampling pump supported |
| Display | LCD dot matrix display |
| Alarm | Sound, light, and vibration |
| Operating temperature | -20 Degree C to 50 Degree C |
| Operating humidity | 0-95% RH, non-condensing |
| Battery | 3.6 V 2300 mAh rechargeable lithium polymer battery |
| Dimensions | 131 x 83 x 35 mm |
| Weight | 240 g |
Compatibility & Notes
- Select the measuring range variant that matches the intended O2 monitoring range.
- Use the detector according to site safety procedures and the product manual.
Continue Your Oxygen Detector Comparison
For the MH-1200H-S-O2, compare the listed diffusion arrangement and clarify any external-pump package before ordering. Read the oxygen detector selection guide to compare the measurement questions before choosing a model. A guide or product listing does not determine suitability for a site procedure.
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.
