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The Testo 300LL Longlife is built for the demands of commercial heating system installation, commissioning and maintenance. Its O2 and CO sensor combination uses hydrogen compensation and can measure up to 30,000ppm via automatic fresh air dilution, without needing extra flue probes or complicated setup.
The sensors are rated for up to 6 years of service life, and with product registration, they're covered by a manufacturer's warranty of up to 5 years — no maintenance contract required. This sits well beyond the domestic-focused Testo 300+ range, both in CO measurement range and sensor longevity, making it the better fit for intensive daily commercial use across multiple sites.
This Printer Kit adds a Testo infrared printer to the standard analyser and probe, so results can be printed on site without ordering the printer separately. An optional NO sensor can also be retrofitted later for NOx measurement, adding capability without replacing the analyser.
The 5-inch smart-touch HD display offers responsive touchscreen operation with structured measurement menus, and Bluetooth/WLAN connectivity allows up to four Testo Smart Probes to be connected for parallel measurement, plus direct report emailing via WLAN hotspot. Integrated draught and gas zeroing means the flue probe doesn't need to be removed from the flue during zeroing. It's EN 50379 Parts 1-3 compliant and TÜV-tested to the German Federal Immission Control Ordinance (BImSchV) standards.
Having the printer included from the outset means commissioning and service reports can be handed to a customer on site without ordering it as a separate accessory later. A CO range of 30,000ppm via automatic fresh air dilution, combined with 6-year sensor life, sets this apart from the domestic-focused Testo 300+ range, and an optional retrofittable NO sensor means NOx capability can be added down the line without buying a new analyser.
Order the Testo 300LL Longlife Flue Gas Analyser Printer Kit online today.
| Brand | Testo |
|---|---|
| Product Type | Flue Gas Analyser – Longlife Printer Kit |
| Oxygen (O2) | 0 – 21 Vol.% |
| Carbon Monoxide (CO) | 0 – 30,000ppm, H2-Compensated with Auto Fresh Air Dilution |
| Ambient CO (Internal Probe) | 0 – 2,000ppm |
| Ambient CO (External Probe) | 0 – 500ppm |
| NO (Optional, Retrofittable) | 0 – 3,000ppm |
| Draught | -9.99 to +40hPa (Accessory Required) |
| Pressure | -100 to +200hPa (Accessory Required) |
| Temperature | -40°C to +1,200°C (Accessory Required) |
| Efficiency | 0 – 120% |
| Flue Gas Loss | 0 – 99.9% |
| CO₂ | Digital Calculation to CO₂ Maximum |
| Standards | EN 50379 Parts 1-3, TÜV-Tested to BImSchV |
| Display | 5.0" HD Smart-Touch Display |
| Connectivity | Bluetooth and WLAN – Up to 4 Smart Probes |
| Memory | 1 Million Measuring Values Plus Address Book |
| Sensor Life | Up to 6 Years (O2 and CO) |
| Battery Life | Up to 10 Hours (Approx. 1 Week at 2hrs/Session) |
| Warranty | Up to 5 Years on O2/CO Sensors with Product Registration |
