Name	Description	Category
Testo 435 Series HVAC and IAQ meters	Large selection of optional probes IAQ probe for evaluating Indoor Air quality Thermal probes with integrated temperature and air Humidity measurement Vane and hot wire probes Integrated differential pressure probe for Pitot tube measurements Wireless probe for temperature and humidity Easy operation with user profiles PC software for the analysis, archiving and documentation for measurement data	HVAC and IAQ Meters
Testo 480 (0563 4800) HVAC Meter, with "Easyclimate" Software	Digital probe connection with integrated calibration concept. PC software for fast analysis, archiving and documentation of measurement and customer data. High-quality digital probes with Testo's intelligent calibration concept. Standards-compliant HVAC and comfort level measurements.	HVAC and IAQ Meters
Testo 535 (0560 5350) CO2 Meter with probe	Long-term monitoring based on maximum and mean calculation Long-term stable 2 channel infrared sensor Highly accurate, highly efficient Repeated calibration is unnecessary	HVAC and IAQ Meters
Testo 316-1 (0632 0316) ABS Electronic Gas Leak Detector with Flexible Measurement Probe	Flexible measurement probe for inaccessible pipes TopSafe case protects from dirt and impact (optional) Audible alarm if limit value is exceeded Optical alarm Flexible measurement probe for hard to reach locations Optical and audible alarms signal when limits are exceeded DVGW approval	Leak Detectors
Testo 317-1 (0632 3170) Electronic Flue Gas Spillage Detector with Flexible Probe	Reliable recognition of escaping flue gases Bendable measurement probe for points which are difficult to access Audible and visual alarm DVGW approved	Leak Detectors
Testo 317-2 (0632 3172) Handheld Gas Leak Detector	Shows gas concentration in visual bar display Sensor self-test following switch-on Audible confirmation of readiness to operate Increasing alarm sounds with increasing gas concentration Continuous sound if alarm threshold is exceeded Battery monitoring with optical display	Leak Detectors
Testo 316-3 (0563 3163) Refrigerant Leak Detector	Patented heated diode sensor provides excellent sensitivity of 0.15 ounces/year High/low sensitivity adjustment allows you to decrease sensitivity to pinpoint leak source Easy one button operation Automatic zeroing compensates for the background adjustment of refrigerant build-up	Leak Detectors
Testo 540 (0560 0540) Pocket-sized Lux Meter	Hold function and max./min. values Protective cap for safe storage Including wrist strap and belt clip Sensor comparable to spectral sensitivity of the human eye Display light	Light Meters