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 175T1 - TEMPERATURE DATA LOGGER

• Internal NTC thermistor provides reliable temperature monitoring with a small footprint
• Large easy to read backlit display
• Large data memory capable of storing up to 1,000,000 temperature readings
• Rugged and waterproof according to IP65

TESTO 460 - TACHOMETER

• Optical rpm measurements
• LED measuring spot marking
• Easy to read display / backlit for use in all lighting conditions
• Comprehensive accessories: reflective markers / protective cap / belt bag

TESTO 312-3 - PRESSURE MEASURING INSTRUMENT UP TO 300/6000 HPA

• Load and tightness tests of gas pipes
• Pressure testing of water pipes using air
• Switchable measuring ranges with high resolution
• Alarm indicator for undershooting of freely adjustable limit values

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

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

TESTO 510 - DIGITAL MANOMETER

• Temperature and air density compensation for accurate airflow measurements
• Measures differential pressure to 40 in. H2O
• Backlit display ensures easy readability in low light situations
• Temperature compensated pressure sensor

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 805 - MINI INFRARED THERMOMETER

• Infrared thermometer for non-contact surface temperature measurements
• TopSafe protective case (optional) protects from water and dirt in accordance with IP 65
• Scan mode for long-term measurement
• Pocket size measuring instrument: compact for easy handling

TESTO 112 - OFFICIALLY CALIBRATABLE ONE-CHANNEL TEMPERATURE MEASURING INSTRUMENT

• High-precision, calibratable temperature measuring instrument with PTB type approval - approved for official measurements
• An attachable temperature probe can be connected - NTC and Pt100 probes optionally available to meet numerous practical requirements
• Thanks to the water and dirt-repellent protective case TopSafe (optional), it is ideal for use in the food sector
• Useful functions: minimum/maximum value memory and acoustic alarm