ET-972 Digital Light Meter Luxmeter Lux Meters Luminometer Photometer Light Meter

Measuring range

Auto ranges：0～400kLux/0～40kFc

Manual ranges：0～400Lux，400Lux～4kLux

4KLux～40kLux，40KLux～400kLux

Display Resolution

0～999.9LUX: 0.1

1000～9999LUX: 1

Above 10K Lux: 0.1

Accuracy

±3% rdg±8dgts.(<10,000Lux)

±4% rdg±10dgts.(>10,000Lux)

Sampling Rate

2 times per second

Spectral Response

CIE photopic (CIE human eye response curve)

Photo Detector

Silicon photo-diode with spectral response filter

Light Overloading Display

Display “LO”

Spectral Accuracy

CIE Vλ function f1’≦6%

Cosine Response

f2’≦ 2%

Visuable Alarm

3-Color LED light alarm

Green light ＜500LUX ,

Yellow light ＜1000LUX，  

Red light＞1000LUX。

Note: The alarm value can be set by user

Audible Alarm

Alarm for 20 seconds,stop for 1 minute, and then cycle the alarm. (The audible alarm defaults to the ON state and can be turned off by user)

Temperature Range

-20℃～60℃/-4℉～140℉

Temperature Accuracy

±1.0℃/1.8℉

Temperature Resolution

0.1

Over range Indication

LCD displays "-OL-" or "-HI-"

Humidity Range

10～100%RH

Humidity Accuracy

35～75%RH;±5%RH，other；±7%RH

Humidity Resolution

1

AVG/MAX/MIN/HOLD

√

LUX/FC Conversion

√

℃/℉ Conversion

√

Auto Power Off

Meter automatically shuts off after approx. 15 minutes of inactivity

Power Supply

3*1.5V AA batteries or USB TYPE-C cable

Operating Conditions

-20℃～60℃/-4℉～140℉，10～95%RH

Storage Conditions

-20℃～60℃/-4℉～140℉,≦85%RH

Dimmension

225(L)*68(W)*29(H)mm

Weight

279g