16 RH520B-en-US_v5.2 8/20
Specifications
Display Graphical LCD
Temperature Range/Accuracy -17 to 50
o
C (0.0 to 120.0
o
F) / ±1.0
o
C (1.8
o
F)
-30 to -17
o
C (-22.0 to 0
o
F) / 3
o
C (±5.4
o
F)
50 to 60
o
C (120.0 to 140
o
F) / 3
o
C (±5.4
o
F)
Humidity Range/Accuracy 1 to 99% / ±3.0% RH
Dew point temperature -28 to 60
o
C (-20.0 to 140.0
o
F)
Internal memory storage 49,152 complete reading sets
Sampling interval Selectable recording rate: 0.1(6 seconds) to 199.9 minutes
Graph scaling User selectable in 5
o
C/F in 10% increments
Low battery indication 5-segment battery indicator
Alarm output 3.5mm Mono Phone Plug,
Maximum: 3.4mA @ 5 VDC,
Minimum Output Voltage: 2.5 VDC
Power supply Three (3) ‘AA’ batteries and AC adaptor (included)
DC 5V 1A, 3.5mm x 1.35 mm plug
Battery life 4 weeks typical, using alkaline batteries
Operating Temperature CONTROL MODULE and DISPLAY: 0 to 50
o
C (32 to 120
o
F)
SENSOR: -30 to 60
o
C (-22 to 140
o
F)
Operating Humidity CONTROL MODULE and DISPLAY: 90% RH max.
SENSOR: 99% RH max.
Dimensions 127 x 196 x 23mm (5.0 x 7.7 x 0.9")
Weight 357g (12.6oz)
Transfer logged data using the PC Interface
Software installation procedure and operational instructions are located in the RH520B software
available on the www.Extech.com/Software web page.
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