The Testo 310 II is a compact flue gas analyzer for commissioning and maintenance of hot water and residential heating systems. It measures O2, CO, CO2 (calculated), flue gas and ambient temperature, ambient CO, draft (differential pressure) and pressure, and supports remote operation and documentation via the testo Smart App with Bluetooth connectivity. The unit features fast sensor zeroing, a replaceable probe filter, and a condensate trap for field use.
Simultaneous, configurable measurement and display of O2, CO, CO2, flue gas and ambient temperature, ambient CO, draft and pressure
Connectivity via Bluetooth and testo Smart App for remote operation, documentation and wireless printing
Probe features include Type K temperature sensor, 180 mm probe option, replaceable filter and quick-empty condensate trap; magnetic rear for hands-free mounting
Product Highlights
Compact combustion analyzer measuring O2/CO/CO2, temperatures, draft and pressure; Bluetooth app connectivity; fast sensor zeroing and field-serviceable probe components.
Product Information
Standard Information
Brand: TESTO
Manufacturer Part Number: 310 II
Country of Origin: US
Technical Specifications
Brand
Testo
Model / MPN
310 II
Manufacturer product number
0563 3104 01
Product type
Flue gas / combustion analyzer
Measured parameters
O2, CO, CO2 (calculated), flue gas temperature, ambient temperature, ambient CO, draft (differential pressure) and pressure
Flue gas O2 measuring range
0 to 21 Vol.%
Flue gas O2 accuracy
±0.2 Vol.%
Flue gas O2 resolution
0.1 Vol.%
Flue gas O2 reaction time (t90)
30 s
Flue gas CO measuring range
0 to 4000 ppm
Flue gas CO accuracy
±20 ppm (0 to 400 ppm); ±5% of reading (401 to 2000 ppm); ±10% of reading (2001 to 4000 ppm)
Flue gas CO resolution
1 ppm
Flue gas CO reaction time (t90)
60 s
Ambient CO measuring range
0 to 4000 ppm
Ambient CO accuracy
±20 ppm (0 to 400 ppm); ±5% of reading (401 to 2000 ppm); ±10% of reading (2001 to 4000 ppm)
Ambient CO resolution
1 ppm
Draft (differential pressure) measuring range
-8 to +8 InH2O / -20 to +20 hPa
Draft accuracy
±1.5% of reading (remaining range); ±0.01 InH2O (-1.20 to +1.20 InH2O) / ±0.03 hPa (-3.00 to +3.00 hPa)
Draft resolution
0.01 InH2O / 0.01 hPa
Pressure measuring range
-16 to +16 InH2O / -40 to +40 hPa
Pressure accuracy
±0.2 InH2O / ±0.5 hPa
Pressure resolution
0.1 InH2O / 0.1 hPa
Efficiency (calculated)
0 to 120%, resolution 0.1%
Flue gas loss (calculated)
0 to 99.9%, resolution 0.1%
Temperature probe type
Type K thermocouple (TC)
Temperature measuring range
-20 to +400 °C / -4 to 752 °F
Temperature accuracy
±1 °C (-20 to +100 °C); ±1.5% of reading (>100 °C)
Temperature resolution
0.1 °C / 0.1 °F
Temperature reaction time
< 50 s
Display
High-resolution graphic display, configurable via testo Smart App
Connectivity
Bluetooth for printer and testo Smart App remote operation and documentation
Power supply
Battery 1500 mAh; mains unit 5V/1A
Operating temperature
-5 to +45 °C / 23 to 113 °F
Storage temperature
-20 to +50 °C / -4 to 122 °F
Probe included
180 mm probe with cone (kit configurations)
Kit contents (example)
Analyzer, probe 180 mm with cone, silicon hose for pressure measurement, particle filters (5), case; printer and thermal paper included in some sets
Special functions
Combustion efficiency and excess air calculation, undiluted CO (air free), data transfer and digital documentation
Fast sensor zeroing
30 seconds
Magnetic attachment
Magnets on instrument rear for hands-free operation
Enclosure / Robustness
Sturdy housing suitable for harsh and dirty environments
Smart probe support
Support for up to 4 wireless Smart Probes (parallel measurement)
Documentation
Data transfer and on-site documentation via testo Smart App; e-mail and Bluetooth printing options