4 in 1 professional measuring instrument: Anemometer, Hygrometer, Thermometer, and Light meter.
* Tiny bone shape with lightweight and small size case design.
* Low-friction ball vane wheels design provides high accuracy at high and low air velocity.
* Exclusive photo diode and color correction filter light sensor, spectrum meets C.I.E. photopic.
* High precision thin-film capacitance humidity sensor with fast response.
* Standard type K (NiCr-NiAl) thermocouple outlet suitable for all kinds of type K probe.
* Build in microprocessor circuit assures excellent performance and accuracy.
* Maximum and minimum value. Zero button, Data hold.