BH-4S Multi-Gas Monitor — O3, SO2, NO2 and CO2
Subcribe to back in stock notification
This BH-4S configuration combines ozone, sulfur dioxide, nitrogen dioxide and carbon dioxide. It serves the specific O3/SO2/NO2/CO2 measurement task; it is a different product from the O2/EX/H2S/CO version sold under the same family name.
Choose the Configuration for Your Measurement
- Gas identity: O3, SO2, NO2 and CO2; carbon dioxide is not carbon monoxide.
- Configuration: One current purchase option, SKU INS03-8030.
- Comparison task: Check all four required gases and their spans before comparing display, alarms and power.
Order Options
| Select an option | SKU |
|---|---|
| Single listed configuration | INS03-8030 |
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
Discover the ultimate safety tool with our Portable Multi-Gas Detector, ideal for detecting O3, SO2, NO2, & CO2. Equipped with a robust sensor, multiple alarms, and IP65 certification, it ensures precision and reliability in industrial settings.
Compare the Relevant Alternative
K-600M names CO, NO2, O2 and SO2 and also describes environmental readings. Its CO and O2 channels are not this BH-4S model's CO2 and O3 channels. Use the gas list to choose between them; they are not alternative housings for one identical configuration.
View the comparison model and its options.
Questions Before Ordering
Is this the usual LEL/O2/CO/H2S four-gas combination?
No. This page lists O3, SO2, NO2 and CO2. Use the standard four-gas products in the collection if that different channel set is required.
Can the channels be exchanged after purchase?
No exchangeable-channel capability is established by the one current order option. Confirm a different required configuration before ordering.
Selection and Use Guides
- Single-gas vs multi-gas selection
- 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.
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.
