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

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TESTO 176T4 - FOUR-CHANNEL TEMPERATURE DATA LOGGER

• External thermocouple parallel connections provide reliable temperature monitoring at up to four sites
• Large, easy to read, bright, backlit display makes it easy to see the current temperature
• Large data memory capable of storing 2,000,000 temperature readings
• Rugged and waterproof according to IP54

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
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TESTO 625 - THERMOHYGROMETER

• Measures air temperature / RH
• Calculates dew point / wet bulb temperature
• Displays min/max values, hold function, power off mode
• Integrated long-life humidity sensor for long lasting quality

TESTO 410-2 - VANE ANEMOMETER WITH HUMIDITY MEASUREMENT

• Integrated RH sensor provides %rH, wet bulb, and dew point readings
• Small 1.5 inch vane meter
• Hold, Min, Max, and Timed averaging
• Lens cover and leather belt case keep it protected - even in your tool box

TESTO 750-3 - DIGITAL VOLTAGE TESTER WITH GFCI TEST

• GFCI Test Function
• 3-digit LCD showing the actual voltage
• measurements
• Patented all-around viewable LED voltage bar indication
• Built-in flashlight for testing in dark places

TESTO 770-1 - HOOK CLAMP METER

• Unique hook-on function separates and grabs wires, without using your hands
• Retractable post makes hook release fast and easy
• Inrush (starting) current capture, APO (Auto Power Off), and Min / Max / Hold

TESTO 875-1I - ADJUSTABLE FOCUS THERMAL IMAGER (160 X 120 FPA)

• Solar mode identifies solar intensity values
• SuperResolution Technology enhances image quality to 320 x 240
• Automatic hot/cold spot recognition
• Advanced report writing and image analysis with included software

TESTO 176T2 - TWO-CHANNEL TEMPERATURE DATA LOGGER

• Two external RTD sensor connections for highly accurate data logging
• Large easy to read backlit display
• Capable of storing up to 2,000,000 temperature readings
• Rugged and waterproof according to IP65

TESTO 645 - HUMIDITY MEASURING INSTRUMENT FOR INDUSTRY

• High-precision humidity measurement up to ± 1% RH
• Internal reading memory (3,000 readings)
• Convenient data evaluation via optional PC software
• Possibility of attaching a really wide range of optional probes thanks to a large accessory portfolio

TESTO 316-EX - GAS LEAK DETECTOR

• ATEX approval (94/9/EC)
• ppm and vol.% display
• Flexible probe for inaccessible areas
• 3 different types of gas can be detected: methane, propane and hydrogen