4465CF Humidity/ Temperature Meter-Extech

Extech 4465CF Humidity/ Temperature Meter Meter Description 1. Temperature-Humidity Sensor 2. LCD Display 3. ON/ OFF/ HOLD switch 4. Temperature units switch ( ° C & ° F ) 5. Temperature/ Humidity/ Record switch ( RECORD position only on the 446580) 6. RECORD / ERASE button ( Model 446580 only) 7. Wet bulb calibration adjustment ( for factory use only) 8. Dry bulb calibration adjustment ( for factory use only) 9. PC Interface jack ( Model 446580) or Analog output jack ( Model 4465CF) The battery compartment and the tripod mount are located on the rear of the instrument. General Specifications Display Multi-function 3 ½ digit ( 2000 count) LCD display Measurement Relative Humidity% ( RH) and Temperature ( ° C & ° F) Data Hold Freezes Display Datalogger ( 446580) Records approx. 7000 readings Data Output 446580: RS 232 PC serial interface 4465CF: Analog 10mvDC per ° C/ F or % RH Response Time Humidity 45% to 95% : d 3 minutes 95% to 45% : d 5 minutes Measurement rate 4465CF: 2.5 readings per second 446580: 1 reading per second Operating Temperature 4465CF: 32 to 122° F ( 0 to 50 ° C) 446580: 32 to 104 ° F ( 0 to 40 ° C) Operating Humidity < 80% RH Storage Temperature 14 to 140° F ( -10 to 60° C) Storage Humidity < 70% RH Power Supply 9V battery Battery life 4465CF: 400 hours; 446580: 50 hours ( approx.) Weight 4465CF: 7.0 oz. ( 198 g) ; 446580: 7.1 oz. ( 200 g) Size 10.6 x 2.7 x1.0" ( 180 x 72 x 32mm) Range Resolution Accuracy ( Full Scale) % Relative Humidity 10% to 95% RH 0.1% RH 30 to 95% RH: ± 3% RH 10 to 30% RH: ± 7% RH Temperature 4 ¿ F to 140 ¿ F ( 20¿ C to 60 ¿ C) 0.1¿ F/ C ± 1.5 ¿ F ( ± 0.8¿ C)