Specifications: TG-900  
Range 0 to 40.0 mils ( 0 to 1000 micro m) 
 
Resolution 0.1 mils/ 1 micro m  
Response time  1 second
Accuracy +/- 4 digits on 0 to 7.8 mils
+/-7 digits on 0 to 199 micro m.
+/-(3% + 4 digits) on 7.9 mils to 40mils(200 micro m to 1000 micro m)
specified at 23 C +/- 5 C , <75% relative humidity.
General 
   
Display 3 1/2 digit liquid crystal display (LCD) with a maximum reading of 1999.
  
Low battery indication  the " Battery " symbol is displayed when the battery voltage drops
below the operating level.  
Operating environment  0 to 50 C (32F ~ 122F) 
ambient at < 75% relative humidity. 
 
Store temperature  0 to 60 C (32 F ~ 140 F) 
ambient , 0 to 80% R.H. with battery revoved
from meter.  
Auto power off 10 seconds
Dimensions 148 mm(H) x 105mm(W) x 42 mm(D)  
Accessory Soft carrying bag, Standard thickness plate 3.9 mils (100 micron), 9V battery