Page 2 Model 407445 Version 2.2 February 2004
Specifications
General Specifications
Display
Dual function LCD display with contrast adjustment
Measurement
Relative Humidity (RH) and Temperature (°C & °F)
Data Hold
Freezes Display
Sensor types
Humidity: Thin film, capacitance sensor
Temperature: Thermistor
Memory Recall
Records/Recalls MAX, MIN, and Average readings
Power off
Automatic power off after approx 10 minutes of inactivity
Data Output
RS 232 PC serial interface
Sampling Time
Approximately 0.8 seconds
Operating
Temperature
Instrument: 32 to 122°F (0 to 50 °C)
Probe: 32 to 140°F (0 to 60°C)
Operating Humidity
< 90% RH
Power Supply
9V battery
Power Consumption
Approx. 8.5 mA DC
Weight
0.76 lbs. (345 g) including batteries & probe
Size
Instrument: 7.1 x 2.8 x 1.3" (180 x 72 x 32mm)
Sensor head: 1” diameter x 6.3” (26mm x 160mm)
Range Specifications
Range
Resolution
Accuracy
RH
10% to 95%
RH
0.1% RH
> 70% RH: ± 4% RH
< 70% RH: ± 3% RH
Temperature
32
ο
F to 122
ο
F
(0
ο
C to 50
ο
C)
0.1
ο
F/C
± 1.5
ο
F (± 0.8
ο
C)
