The HT1000 is a handheld 0-1000 ppm carbon monoxide meter with backlight, data hold and a maximum-reading function. Compare it when a displayed CO reading and those review functions suit the measurement task. Three AAA batteries are required and are not included.
Choose the Configuration for Your Measurement
- Reading functions: CO concentration, data hold and maximum-reading display.
- Power supply: Three AAA batteries; check the supplied instructions for battery installation and use.
- Alarm behavior: The source describes fixed alarm behavior. Do not assume it has the same adjustable setting controls as ST9700.
Order Options
| Select an option | SKU |
|---|---|
| Single listed configuration | INS03-8502 |
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
Stop Carbon-Monoxide Poisoning Before It Starts
The HT1000 Portable Carbon Monoxide Detector gives you instant, lab-grade CO readings from 0 to 1000 ppm in just two seconds of warm-up. A bright backlit LCD shows live concentration, while an 85 dB buzzer and flashing icon warn you the moment levels exceed 200 ppm.
Main Benefits
- Accurate & Sensitive — ±10 ppm or ±15 % FS accuracy for reliable safety checks.
- Fast Response — Electrochemical sensor refreshes every second; manual ZERO button eliminates drift.
- Data Hold + Max Read — Freeze a reading or view peak ppm at a glance.
- Low-Power Design — Auto power-off after 15 min; runs >80 hours on 3 × AAA (not included).
- Bright Backlight — Easy reading in engine bays, basements or night shifts.
- Pocket-Sized & Rugged — 160 × 55 × 40 mm ABS housing, just 156 g.
- CE / RoHS compliant with 12-month warranty.
Ideal Applications
- Homes & apartments — monitor fireplaces, gas heaters & boilers
- Garages & workshops — detect CO buildup during idling or tuning
- RVs, caravans & camper vans — peace of mind on the road
- Offices & classrooms — ensure indoor air quality complies with OSHA guidelines
- Industrial inspections — HVAC technicians & boiler maintenance crews
Technical Specifications
| Model | HT1000 |
|---|---|
| Measurement Range | 0 – 1000 ppm CO |
| Resolution | 1 ppm |
| Accuracy | ±15 % reading or ±10 ppm (whichever is greater) |
| Alarm Threshold | 200 ppm (audible 85 dB + visual) |
| Sensor Type | Electrochemical CO cell |
| Warm-Up Time | ≈ 2 s |
| Operating Temp | 0 – 50 °C (32 – 122 °F) |
| Humidity | ≤ 90 % RH (non-condensing) |
| Power Supply | 3 × AAA alkaline (not included) |
| Auto Power-Off | 15 min |
| Dimensions | 160 × 55 × 40 mm / 6.3 × 2.2 × 1.6 in |
| Weight | 156 g / 5.5 oz |
Package Contents
- HT1000 Carbon Monoxide Detector × 1
- User manual × 1
FAQs
How often should I calibrate the HT1000?
For professional use, perform a zero check before each shift and a span check every 6 months with certified CO gas.
Can I change the alarm level?
The audible alarm is factory-set at 200 ppm per OSHA short-term exposure limits and is not user-adjustable.
Does it store readings?
The Max Hold function keeps the highest reading since power-on, useful for tracing intermittent leaks.
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Compare the Relevant Alternative
ST9700 adds ambient-temperature measurement and an adjustable alarm setting to its CO display. HT1000 emphasizes hold and maximum readings. Both product pages state a 0-1000 ppm CO span, so the additional functions and alarm controls are useful points of comparison.
View the comparison model and its options.
Questions Before Ordering
Is maximum reading the same as a downloadable log?
No downloadable recording function is established by a maximum-reading function alone. Check the model description for the specific records you need.
Can I use the alarm threshold as an exposure recommendation?
A product alarm threshold describes the instrument behavior. Configure and use monitoring equipment according to the supplied instructions and the applicable site procedure.
Selection and Use Guides
- Gas detector alarm settings
- Bump testing and calibration: what each does
- 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.
