Check phosphine concentration in surrounding air with this portable phosphine gas detector. The MH-1200H-S-PH3 combines an electrochemical PH3 sensor with diffusion sampling, a rear clip and a protective cover. Four range configurations are available: 0-5, 0-20, 0-50 and 0-100 ppm.
Choose the PH3 Measurement Span
Select the span required by your monitoring procedure. Each option is a separate range configuration of the instrument, so the range is selected when ordering. The display resolution is 0.1 ppm. Diffusion sampling measures air at the sensor inlet; keep that inlet exposed to the air being checked and follow the instrument instructions for checks and calibration.
Concentration Display and Alarm Review
A 128 x 64 monochrome LCD shows the gas and its concentration, with ppm and mg/m³ display units available. Set the backlight timing through the controls; it also illuminates automatically when an alarm occurs. Sound, light and vibration provide alarm indications, with an 85 dB audible alarm and configurable alarm set points. The instrument stores 100 alarm records for review on its screen.
Technical Specifications
| Model | MH-1200H-S-PH3 |
|---|---|
| Measured gas | Phosphine (PH3) |
| Sensor principle | Electrochemical |
| Sampling | Diffusion |
| Range options | 0-5, 0-20, 0-50 and 0-100 ppm |
| Resolution | 0.1 ppm |
| Display | 128 x 64 monochrome LCD |
| Display units | ppm and mg/m³ |
| Alarm modes | Sound, light and vibration |
| Audible alarm | 85 dB |
| Alarm settings | Configurable set points |
| 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 |
Instrument Controls and Carrying
Zero calibration, self-calibration, battery status checks and a factory reset function are available through the instrument controls. Use the specified calibration procedure and the alarm settings required for your monitoring task. A rechargeable 2300 mAh lithium-polymer battery powers the detector. Its housing measures 131 x 83 x 35 mm, and the instrument weighs approximately 240 g including its protective cover. The rear clip provides a carrying point during inspection rounds.
Product photos illustrate the housing shared across this series. Gas names on the demonstration screen may differ from the selected PH3 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.
Unable to find satisfactory answers ? more FAQs
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.
