HT Instruments HT309 数字式照度计

Illuminance measurement (Autorange):  

Full scale (Lux): 40/ 400/ 4000/ 40k/ 400k; ± (3%reading) 

Full scale (Fc): 40 /400/ 4000/ 40k;  ± (3%reading) 

Accuracy on angular deviation from cosine characteristic: 30° (± 2%);  60° (± 6%);  80° (± 25% )

Dimensions (L x W x H): 190 x 65 x 45mm (7 x 3 x 2in)

Sensor dimensions (L x W x H): 110 x 60 x 35mm (4 x 2 x 1in)

Cable length: approx 1.5m (39in)

Weight (battery included): 235g (8 ounces) 

Battery type: 1x9V battery type NEDA 1604 IEC 6F22; ca 60h (backlight ON), ca 180h (backlight OFF) 

Display: LCD, 6 digits, 4000 dots plus decimal point 

Over range indication: the display shows symbol “OL”

Sampling rate: 2.5 measurements/s 

Accessories: 

Test certification

Carrying bag HT309

Batteries and user manual

Manual