Extech Instruments 421509 User Manual

USER GUIDE
Dual Input, 3-Display Thermometer/Datalogger
Model 421509
 Accepts J, K, T, E, R, S, & N thermocouples
 Internal Memory stores up to 16 data sets,
with 1024 maximum data capacity
 Backlit LCD Display
 T1 / T2 / T1 – T2 displays
 MIN / MAX / AVG Record/Recall
 Selectable temperature units (C/F)
 Data Hold, Relative Mode, Elapsed Timer
 PC Interface
ESC - 0
ENTER
123
456
789
DISPLAY
¡C/¡F
[Limits]
LOG
READ
TYPE
T1/T2
REL
HOLD
SHIFT
[OFS]
CLR ?
SET[ ]
SAVE
READ
[TIME]
T1-T2
[APO]
MAX/MIN
[INVT]
TYPE
T1/T2
MAIN
SECOND
THIRD
421509
T1
¡F T1-T2
K
APO
¡F T1

Extech Instruments 421509 Specifications

General

Model	421509
Category	Measuring Instruments
Temperature Range	-4 to 140°F (-20 to 60°C)
Power	9V battery
Operating Temperature	32 to 122°F (0 to 50°C)
Type	Thermometer and Hygrometer
Humidity Range	0 to 100% RH
Resolution	0.1°F/°C; 0.1%RH
Accuracy (Humidity)	±3% RH
Display	LCD
Sampling Rate	1 second
Weight	3.2 oz (91 g)