TESTO 635 - Technical data

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10. Technical data
Measuring ranges and accuracies
Parameter/ Probe type Measuring range Accuracy (± 1 Digit) Resolution
Temperature / -200...+1370°C (Type K) ±0.3°C (-60.0...+60.0 °C) 0.1°C
Type K/T -200...+400°C (Type T) ±0.5% of reading (rest of range)
-328...+2498°F (Type K) ±0.6°F (-76.0...+140.0°F) 0.1°F
-328...+752°F (Type T) ±0.5% of reading (rest of range)
Relative humidity/ 0...+100%RH Depends on probe 0.1%RH
humidity probe
Pressure/absolute 0...+2000hPa Depends on probe 0.1hPa
pressure probe
Further instrument data
Characteristic Value
Probe connections 1x Omega TC socket, 1x Mini-DIN socket, radio module (accessory)
Memory 635-2 only: max. 99 locations, up to 10000 readings (depending on number of
locations, protocols, channels)
Battery life 200h
Power supply 3x mignon battery (included in delivery)/rechargeable battery or mains unit
(accessory part)
Housing material ABS/TPE/metal
Dimensions 225 x 74 x 46mm
Operating temperature range -20...+50°C
Storage temperature -30...+70°C
Measuring rate 2/s
EC Directive 89/336/EEC
Warranty Instrument: 2 years
10. Technical data