Testo 105 Handheld Thermometer. T-handle Thermometer for food industry. Range : -50°to 275°C.
Testo 106 Handheld Thermometer. Thermometer for food industry. Range : -50°to 230°C.
Testo 110 Handheld Thermometer. Range : -50°to 275°C.
Testo 112 Handheld Thermometer. Thermometer for food industry. Range : -50°to 300°C.
Testo 720 Handheld Thermometer. Range : -100°to 800°C.
Testo 735-1 Handheld Thermometer. Range : -200°to 1370°C.
Testo 735-2 Handheld Thermometer. Range : -200°to 1370°C.
Testo 905-T1 Mini Penetration Thermometer. Range -50 to +350°C.
Testo 905-T2 Mini Surface Thermometer. Range -50 to +350°C.
Testo 922 Thermometer Two Channels. Differential temperature. Range -50 to +1000°C.
Testo 925 Handheld Thermometer. Range: -50° to 1000°C (-60° to 1850°F).
Testo 926 Handheld Thermometer Food Industry. Temperature measurement range: -50° to 400°C
Testo 950 Handheld  Thermometer. Accurate Reference Thermometer. Range: -200° to 1760 °C.

Testo 805 Infrared Thermometer. Pocket infrared thermometer.
Testo 810 Infrared Thermometer. 2 Channel. Pocket infrared thermometer.
Testo 825-T2 Infrared Thermometer. Non-contact infrared thermometer. With laser sighting.
Testo 825-T4 Infrared Thermometer. Non-contact infrared thermometer and contact thermometer.
Testo 826-T1 Infrared Thermometer. IR Thermometer. Non-contact temperature measurement.
Testo 826-T2 Infrared Thermometer. IR Thermometer with alarm, laser sighting.
Testo 826-T3 Infrared Thermometer. IR and Contact Thermometer.
Testo 826-T4 Infrared Thermometer. IR and Contact Thermometer. Food Industry.
Testo 830-T1 Infrared Thermometer. IR and Contact probe thermometer. Pistol design.
Testo 830-T2 Infrared Thermometer. IR and Contact probe thermometer. Pistol design.
Testo 830-T3 Infrared Thermometer. IR and Contact probe. Small measurement point.

Testo 880 Thermal Imaging Camera. Infrared Thermometer. High quality wide angle.

Testo 171-0 Temperature Datalogger. Range: -35° to 70°C (-50° to 158°F).
Testo 174 Temperature Logger.
Testo 175-T1 1 Channel Temperature data logger with internal sensor. LCD display
Testo 175-T2 2 Channel Temperature data logger with internal sensor/external probe socket. Display.
Testo 175-T3 2 Channel Temperature data logger for external thermocouples sensors. Display.
Testo 177-T1 1 Channel Temperature logger with internal sensor. Long time monitoring.
Testo 177-T2 1 Channel Temperature logger with internal sensor. Long time monitoring. Display.
Testo 177-T3 3 Channel Temperature logger with internal sensors. Event logging. LCD display.
Testo 177-T4 4 Channel Temperature logger for external thermocouples. LCD display.
Testo 171-4 Temperature Datalogger. Range: -50° to 120°C.
Testo 171-8 Temperature Datalogger. Range: -200° to 1000°C.

Testo 175-H1 2 Channel Temperature Humidity data logger with internal sensors.
Testo 175-H2 2 Channel Temperature Humidity data logger with internal sensors. LCD display.
Testo 177-H1 4 Channel Temperature humidity logger with internal/ext probe socket. LCD display.
Testo 1722 Humidity Temperature Datalogger. Logging up to 55,000 measured values with alarm output.
Testo 171-1 Temperature Humidity Datalogger. Range: -50° to 120°C.
Testo 171-2 Temperature Humidity Datalogger. Range: -20° to 70°C.
Testo 171-3 Temperature Humidity Datalogger. Range: -10° to 50°C.
Testo 171-6 Temperature Humidity Logger. Range: -50° to 120°C.

Testo 175-S1 1 Channel Current Voltage Logger.
Testo 175-S2 1 Channel Current Voltage Logger. With Display

Testo 575 Fast Printer and logger control.
Testo 580 Compact Data collector for data loggers.

Testo FA 200-1 Transmitter. Pressure dew-point, preventing damage to compressed air systems.
Testo FA 200-2 Transmitter. Pressure dew-point, preventing damage to compressed air systems.
Testo Hygrotest 600 Transmitter. Mini-modules for humidity, temperature and dew-point.
Testo Hygrotest 650 Transmitter. Mini-modules for humidity, temperature and dew-point.

Testo 605-H1 Low cost Temperature & humidity instrument with humidity range 5 to 95 %
Testo 606-1 Moisture Meter for wood and material.
Testo 606-2 Humidity air temperature measurement. Moisture Meter for wood and material.
Testo 610 Humidity air temperature measurement.
Testo 625 Measurement of humidity, temperature and dew point. Applications in the HVAC clean rooms.
Testo 635-1 Measurement of humidity, temperature, dew point. 
Testo 635-2 Temperature, relative absolute humidity, dew point, degree of humidity and enthalpy. 
Testo 650 Temperature, humidity, temperature, CO, CO2, rpm, mV, mA, dew point and % RH.

Huminator Humidity probes reference. Humidity Temperature Calibrator.

Testo FA 200-1 Transmitter. Pressure dew-point, preventing damage to compressed air systems.
Testo FA 200-2 Transmitter. Pressure dew-point, preventing damage to compressed air systems.
Testo Hygrotest 600 Transmitter. Mini-modules for humidity, temperature and dew-point.
Testo Hygrotest 650 Transmitter. Mini-modules for humidity, temperature and dew-point.

Testo 405 Velocity temperature measurement stick.
Testo 410-1 Anemometer Vane. Velocity temperature measurement.
Testo 410-2 Anemometer Vane. Velocity temperature humidity measurement.
Testo 416 Velocity temperature meter. Vane anemometer with telescopic vane probe.
Testo 417 Velocity temperature. Vane Probe anemometer with built in vane.
Testo 425 Thermal Anemometer with flow probe. Range of  0...20 m/s.
Testo 435-1 Versatile anemometer. velocity in the range of 0...20 m/s or 0...60 m/s.
Testo 435-2 Versatile anemometer. velocity in the range of 0...20 m/s or 0...60 m/s.
Testo 435-3 Versatile anemometer. velocity in the range of 0...20 m/s or 0...60 m/s.
Testo 435-4 Versatile anemometer. velocity in the range of 0...20 m/s or 0...60 m/s.
Testo 521 Versatile Differential Pressure Meter. Range of 0 to 100 hPa. 0.2%
Testo 521 Versatile Differential Pressure Meter. Range of 0 to 100 hPa. 0.1%

Mini Wind Tunnel Checks on the velocity probes and measuring instruments within your company.

Testo 435-1 Hand held analyzer for heating systems. Logger function, Printer, Data management
Testo 435-2 Hand held analyzer for heating systems. Logger function, Printer, Data management
Testo 435-3 Hand held analyzer for heating systems. Logger function, Printer, Data management
Testo 435-4 Hand held analyzer for heating systems. Logger function, Printer, Data management
Testo 454 The IAQ master data acquisition system with 6 freely assignable measurement inputs.
Testo 650 Temperature, humidity, temperature, CO, CO2, rpm, mV, mA, dew point and % RH.

Testo 230 Complete pH measuring instrument as well as an accurate digital thermometer.
Testo 240 Conductivity and temperature measurements with one instrument.

Testo 312-2 Manometer Pressure meter. -40 to +40 or -200 to 200 hPa.
Testo 312-3 Manometer Pressure meter. -300 to +300 or -6000 to +6000 hPa.
Testo 314 Pressure Meter with printer. Pressure range -1000 mbar to 1000 bar.
Testo 510 Differential Pressure Meter. Measuring range 0 to 40.15 inH2O.
Testo 511 Absolute Pressure Meter. Measuring range 120.4 to 481.8 inH2O.
Testo 512 Manometer Differential Pressure meter. 0 to 2 hPa. Low Pressure Monitor Measurement.
Testo 512 Manometer Differential Pressure meter. 0 to 20 hPa. Low Pressure Monitor Measurement.
Testo 512 Manometer Differential Pressure meter. 0 to 200 hPa. Low Pressure Monitor Measurement.
Testo 512 Manometer Differential Pressure meter. 0 to 2000 hPa. Low Pressure Monitor Measurement.
Testo 520 Manometer Differential  Low Pressure. Pressure range: 0 to 20/200 mbar/hPa.
Testo 520 Manometer Differential  Low Pressure. Pressure range: 0 to 100/1000 mbar/hPa.
Testo 520 Manometer Differential  Low Pressure. Pressure range: 0 to 200/2000 mbar/hPa.
Testo 520 Manometer Differential  Low Pressure. Pressure range: 0 to 1/10 bar. 
Testo 521 Differential Pressure Meter. Pressure range of 0 to 100 hPa.
Testo 521 Differential Pressure Meter. Pressure range of 0 to 2,5 hPa.
Testo 526 Highly accurate differential pressure measuring instrument for the professional in industry.
Testo 650 Very low pressures (±10 mbar) and pressures at up to 30 bar by attaching different probes.

Testo 523 Refrigeration System Analyzer
Testo 556-1 Refrigeration System Analyzer
Testo 556-2 Refrigeration System Analyzer
Testo 560-1 Refrigeration System Analyzer
Testo 560-2 Refrigeration System Analyzer

Testo 325M Flue Gas Analyzer Temperature Efficiency CO, CO2 O2.
Testo 325-2 Flue Gas Analyzer O2, CO2, temperature, draft, excess air, efficiency, pressure.
Testo 325-3 Flue Gas Analyzer. Carbon Monoxide Analyzer CO, temperature, draft, pressure.
Testo 327-1 Flue Gas Analyzer. Efficiency, flue gas loss, CO temperature, draft.
Testo 327-1 Flue Gas Analyzer. Efficiency, flue gas loss, O2, temperature, draft.
Testo 327-1 Flue Gas Analyzer. Carbon Monoxide Analyzer CO, O2, temperature, draft, pressure.
Testo 327-2 Flue Gas Analyzer. Carbon Monoxide Analyzer CO, O2, temperature, draft, pressure.

Testo 330-1 Flue Gas Analyzer. CO, CO2, NO, O2, Efficiency temperature. Flue gas analysis.
Testo 330-2 Flue Gas Analyzer. CO, CO2, NO, O2, Efficiency temperature. Flue gas analysis.
Testo 325-I CO high Single-gas analyzer.
Testo 325-I CO high (O2) Single-gas analyzer.
Testo 325-I CO low Single-gas analyzer
Testo 325-I NO Single-gas analyzer.
Testo 325-I SO2 Single-gas analyzer.
Testo 335 Flue Gas Analyzer, temperature, oxygen NO, CO, CO2, NO2, SO2 efficiency.
Testo 350 Portable Stack Flue Emission Analyzer flue velocity, humidity, O2, CO, NO, NO2, SO2.
Testo 535. Testo 535, the ideal CO₂ measuring instrument for building engineers. 

Testo 315-1 CO level measuring instrument.
Testo 316-1 Gas leak detection instrument.
Testo 317 Quickly and efficiently detects escaping heating flue gases.
Testo 325-1 Combustion Analyzer O2, CO2, temperature, draft, excess air, efficiency, pressure. Professional measurement and documentation of flue gas analysis.
Testo 325-2 Combustion Analyzer O2, CO2, temperature, draft, excess air, efficiency, pressure. Professional measurement and documentation of flue gas analysis.
Testo 325-3 Carbon Monoxide Analyzer CO, temperature, draft, pressure.
Testo 325-I Single-gas analyzers are designed to measure CO (high), CO (low), NO or SO2
Testo 330-1 Flue Gas Analyzer. CO, CO2, NO, O2, Efficiency temperature. Flue gas analysis.
Testo 330-2 Flue Gas Analyzer. CO, CO2, NO, O2, Efficiency temperature. Flue gas analysis.
Testo 350 Portable Stack Flue Emission Analyzer flue velocity, humidity, O2, CO, NO, NO2, SO2, Draft, differential temperature, and excess air.

Testo 435-1 Hand held analyzer for heating systems. Logger function, Printer, Data management
Testo 435-2 Hand held analyzer for heating systems. Logger function, Printer, Data management
Testo 435-3 Hand held analyzer for heating systems. Logger function, Printer, Data management
Testo 435-4 Hand held analyzer for heating systems. Logger function, Printer, Data management

Testo 535. Testo 535, the ideal CO₂ measuring instrument for building engineers.

Testo 330-1 Flue Gas Analyzer. CO, CO2, NO, O2, Efficiency temperature. Flue gas analysis.
Testo 330-2 Flue Gas Analyzer. CO, CO2, NO, O2, Efficiency temperature. Flue gas analysis.
Testo 325-I Flue gas emission analyzers are designed to measure CO (high), CO (low), NO, or SO2.
Testo 350 Portable Stack Flue Emission Analyzer flue velocity, humidity, O2, CO, NO, NO2, SO2, Draft, differential temperature, and excess air.

Testo 460 Low cost, non-contact, optical rpm measuring instrument. Max/min values.
Testo 465 Low cost, non-contact, optical rpm measuring instrument.
Testo 470 The versatile Testo 470 is capable of non-contact and mechanical rpm measurements.
Testo 475 A convenient mini stroboscope for measurement of rpm and frequency/oscillation.
Testo 476 Stroboscope for measurement of rpm and frequency/oscillation.

Testo 815 Portable instruments for accurate sound level measurement. Accuracy class 2.
Testo 816 Portable instruments for accurate sound level measurement.

Testo 540 Lux Meter Light intensity, Hold function and max/min values. 0 to 99.999 Lux.
Testo 545 Measuring Luminous Light intensity, mean calculation, memory and location management.