Display: 3 1/2 digit liquid crystal display (LCD) with max. Reading of 1999.
Polarity: Automatic, (-)negative polarity indication.
Zero adjustment: Automatic.
Overrange indication: Highest digit of (1) or (-1) is displayed.
Low battery indication: The (LO BAT) is displayed when the battery voltage drops below the operating voltage.
Measurement rate: 3 measurements per second, nominal.
Operating temperature: 0oC to +50o, 0 - 70% RH.
Storage temperature: -20o to 60o , 0 - 80% RH. With battery removed.
Accuracy: Accuracy specifications at 235o , less than 75% RH.
Power: Single, 006P 9 volt battery
Dimensions: 128mm(L) x 720mm(W) x 300mm(D).
Weight: approx. 200g(3501), 183g(3201)