The MH-1200H-S-CL2 measures chlorine gas using diffusion sampling. Four current order variants provide 0-10, 0-20, 0-50 and 0-100 ppm spans. Match the Cl2 gas measurement requirement and selected range; this is a different task from measuring chlorine in water.
Choose the Configuration for Your Measurement
- Gas: Chlorine gas (Cl2), not dissolved-chlorine water measurement.
- Range menu: Four separate ppm variants; the selected SKU identifies the supplied span.
- Sampling: Diffusion is the stated method. Confirm an external-pump package separately if the procedure requires it.
Order Options
| Select an option | SKU |
|---|---|
| 0-10 ppm | GAS-Q9C4-01 |
| 0-20 ppm | GAS-Q9C4-02 |
| 0-50 ppm | GAS-Q9C4-03 |
| 0-100 ppm | GAS-Q9C4-04 |
Open an option to review its current price and purchase controls. Each option is a separate order configuration; use the selected product and SKU when confirming the supplied package.
Product Details and Specifications
The MH-1200H-S-CL2 is a portable chlorine (Cl2) gas detector for site checks that call for a concentration reading at the instrument. Its electrochemical sensor measures surrounding air by diffusion, and the rear clip and protective cover support carrying the detector during inspection rounds. Choose the required CL2 range when ordering; each range is a separate instrument configuration.
Choose a Chlorine Range
The four available measurement spans are 0-10, 0-20, 0-50, and 0-100 ppm. Select the range that matches your monitoring procedure and expected concentration span. The standard instrument uses diffusion sampling. An external sampling pump is an optional setup for tasks that require a different sampling arrangement; confirm that configuration before ordering.
Display and Alarm Review
The monochrome dot-matrix LCD displays the concentration and supports ppm and mg/m³ units. Backlight timing can be adjusted, and the light can activate automatically during an alarm. Audible, visual, and vibration alerts provide three ways to notice an alarm; the audible alarm is rated at 85 dB. Alarm thresholds are configurable, and the instrument can retain 100 alarm records for review on its display. Zero and self-calibration functions are available.
Technical Specifications
| Model | MH-1200H-S-CL2 |
|---|---|
| Measured gas | Chlorine (Cl2) |
| Sensor principle | Electrochemical |
| Sampling method | Diffusion; external pump setup optional |
| Range configurations | 0-10 ppm; 0-20 ppm; 0-50 ppm; 0-100 ppm |
| Display | 128 x 64 monochrome dot-matrix LCD |
| Concentration 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 activation during an alarm |
| Power | 2300 mAh rechargeable lithium-polymer battery |
| Operating temperature | -20 to 50 Degree C |
| Ingress protection | IP65 |
| Dimensions | 131 x 83 x 35 mm |
| Approximate unit weight | 240 g with protective cover |
Use and Configuration Notes
For diffusion sampling, surrounding air must reach the sensor openings. Follow the supplied instructions and your site's procedures for calibration, alarm settings, and gas-monitoring checks. The product photographs show the shared housing used across this model family; gas names on the demonstration screen may differ from the ordered CL2 configuration.
Compare the Relevant Alternative
The pump single-gas family includes a Chlorine (Cl2) sensor option and explicitly describes an internal micro pump. This dedicated MH-1200H-S page offers four Cl2 range choices. Do not transfer those four ranges to the pump family's single Cl2 option.
View the comparison model and its options.
Questions Before Ordering
Is this a chlorine meter for pool or process water?
No water-measurement capability is established here. The product is identified as a Cl2 gas detector.
Does the pump single-gas alternative provide these same four ranges?
The separate pump product has its own Cl2 option and specification table. Compare its actual range instead of inheriting this page's range menu.
Selection and Use Guides
- Pumped vs diffusion gas detectors
- Gas sensor cross-sensitivity
- Browse gas detectors by gas and measurement task
Selection note: Follow the supplied instrument instructions and the applicable site procedure. This product comparison does not replace a site-specific risk assessment.
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.
