Product Specifications | ||||
Measurement ranges | 0~1500μm | |||
Resolution | 0.1μm/1μm | |||
Accuracy | ±(3%H+1μm) | |||
LCD display | 3 1 / 2 display | |||
Power supply | 3*1.5V AAA alkaline battery | |||
Operation current | About 10mA | |||
Battery life | Continuously 20 hour . | |||
Auto power off | 80 seconds | |||
LCD backlight function | 15 second. | |||
Operation temperature | 0~40ºC | |||
Operation humidity. | 10~95% RH | |||
Low battery indication | 3.0V ± 0.2V | |||
Product size | 72 x 35x 145mm | |||
Weight | 216.5G (without battery) |
Model | GM220 | GM280 | GM280F |
Measurement ranges | 0-1800μm | 0-1500μm | 0-1800μm |
Resolution | 0.1um/1μm | 0.1um/1μm | 0.1um/1μm |
Operation temperature | 0~40ºC | 0~40ºC | 0~40ºC |
Operation humidity | 10-95%RH | 10-95%RH | 10-95%RH |
Overall dimensions | 67*30*175mm | 72*35*145mm | 72*35*145mm |
Weight | 133g | 216.5g | 246.1g |