Image
  1. Home
  2. testo 545
0560 0545

testo 545 - Light meter

Image
Product no longer available. Have you checked out its successor?
Why not enjoy the benefits that it has to offer: >> To the product
  • Precise light intensity readings in lux
  • Large memory for up to 3 000 readings
  • Selective or time-based averaging
  • Measuring site management with optional software: up to 99 measuring sites available
The testo 545 lux meter for natural and artificial light comes with a permanently attached light sensor that allows you to measure the light intensity in the workplace, offices, schools and hospitals both quickly and reliably. White or warm light LEDs (K< 5,000) can be measured without any problem. The optional software can be used to compile a light profile from the light intensity readings.

At-a-glance look at the benefits of the testo 545 light meter

The testo 545 lux meter can be used to carry out selective as well as long-term light intensity measurements. It has a built-in data logger which can save up to 3 000 readings and can be used to perform both selective and time-based averaging. The optional testo turbo printer also allows you to print out measuring data while you are on site.
The optional PC software allows you to set up up to 99 measuring sites, allocate the readings to the relevant measuring sites and connect individually saved readings to form a curve. The light profile obtained from such data provides you with a picture of the uniformity of the lighting.

General technical data

Weight
500 g
Dimensions
220 x 68 x 50 mm
Operating temperature
0 to +50 °C
Product-/housing material
ABS
Battery type
9V block battery
Battery life
50 h
Connection
Fixed cable, coiled
Display type
LCD (Liquid Crystal Display)
Display size
2 lines
Data transfer
RS232 cable connects instrument to PC (1.8 m) for data transfer
Memory
3,000 measuring values
Storage temperature
-20 to +70 °C

Light

Measuring range
0 to 100000 Lux
Accuracy
F2 = 5 % cos like rating
Class C according to DIN 5032-7
Accuracy to DIN 13032-1:
F1 = 6 % V (Lambda) adaptation
Resolution
1 Lux (0 to 32000 Lux)
10 Lux (0 to 100000 Lux)

testo 545 light meter with permanently attached sensor, calibration certificate, batteries.

Contact
Testo ME for Environment Testing and Trading L.L.C
Belresheed Building 2, Nad Al Hamar
United Arab Emirates
Dubai
+97143411432

Opening hours:

Monday - Friday : 10:00 - 19:00

© 2026