The testo 540 entry-level light meter is designed for carrying out spot checks in the workplace, shops, and offices. The light sensor is modelled on the spectral sensitivity of the human eye, and is ideal for measuring lighting conditions in the workplace.
This compact, easy to use meter has a number of useful functions and features, including a large, easy to read display, min/max values, a hold function, and a protective cap for safe storage.

Features:

For quick and easy measurements in the workplace
Sensor based on the spectral sensitivity of the human eye
Hold function, min/max values
Protective cap for safe storage

More products TESTO

TESTO 510I - DIFFERENTIAL PRESSURE MANOMETER WIRELESS SMART PROBE

• Measures static pressure, air flow, and volume flow (pitot tube not included)
• Measures manifold pressure and pressure drop across filters and coils, and has a measurement menu in the Smart Probes app that includes pressure drop alarms
• Easy configuration and calculations for volume flow (enter pitot tube factor and dimensions easily)
• Magnetic back holds instrument for hands-free operation

TESTO 206 PH3 - ONE-HAND PH/TEMPERATURE MEASURING INSTRUMENT FOR CONNECTING EXTERNAL PROBES

• External pH probe can be connected - for flexible use
• Automatic final value recognition
• Robust and waterproof thanks to TopSafe (IP 68)
• Automatic temperature evaluation (if a probe with temperature sensor is connected)

TESTO 410I - VANE ANEMOMETER WIRELESS SMART PROBE

• Measures air velocity, volume flow, and temperature, as well as air flow at registers, and automatically calculates volume flow (simply enter the duct dimensions)
• No air density correction required, due to its design
• Measure volume flow at several outlets simultaneously (using mutiple Smart Probes), to adjust system balance
• Timed/multipoint averaging to get accurate air flow profiles

TESTO 312-4 - DIFFERENTIAL PRESSURE MEASURING INSTRUMENT UP TO 200 HPA

• Tightness testing and load testing on gas pipes
• Serviceability testing with air by pressure drop on gas pipes
• Pressure testing on drinking water and waste water pipes using air
• Automatic recording of measuring values over several hours

TESTO 875I-2 DELUXE KIT - ADJUSTABLE FOCUS THERMAL IMAGER (160 X 120 FPA)

• Thermal sensitivity to <50mK will show even minimal temperature differences
• Large 3.5" LCD screen, and 160 x 120 resolution ensures easy onsite image analysis
• Power LEDs guarantee optimal illumination for both the digital pictures, as well as optical thermal im
• Solar mode enters and saves sunlight values for each thermal image

TESTO 417 KIT - ROTATING VANE ANEMOMETER

• Soft carrying case for worry-free transportation
• Air velocity, CFM, and temperature measurements
• Multi-point and timed average calculations for in-duct readings
• Bright backlit display provides easy viewing in any environment

TESTO 905-T1 - PENETRATION PROBE

• Professional industrial sensor (thermocouple Type K)
• High accuracy
• Easy readout of measurement value due to rotatable display
• Alarm message, reliable transmisstion of alarm value limits

TESTO 760-3 - DIGITAL MULTIMETER WITH TYPE K, TRMS, AND 1,000 V RANGE

• 1,000 V AC/DC voltage measuring range, TRMS, and low pass filter
• Auto-test setup based upon lead connection prevents blown fuses in the meter
• Meter automatically detects testing in-process, and selects the correct meter configuration, saving time and optimizing accuracy
• Measure up to 400 A with optional clamp probe adapter

TESTO 805I - INFRARED THERMOMETER WIRELESS SMART PROBE

• Measures non-contact temperature
• Optic target ratio (10:1)
• Measurement area indicated by a circular laser pattern, which assures accurate assessments
• Photograph objects with smart device, capturing measurement marker and temperature values for reference and reporting

BASE (SMS-ALARM) - INCLUDING GSM MODULE FOR SMS ALARM

• Up to 150 probes can be connected
• Graphical display, 4 control keys
• Interfaces: radio, Ethernet, USB
• GSM module for sending alarm messages via SMS