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Reference Temperature
(Input during calibration)
15.0 to 25.0°C (59 to 77°F)
Temperature Coefficient
(Input during calibration)
0.0% to 4.0%
TDS Constant
(Input during calibration)
0.3 to 1.00
Cell Constant Range
4.50 to 5.50
ATC Probe
Thermistor, 10KΩ, at 25 °C
Calibration Backup
Yes
Audio Feedback
Yes, on all keys
Power Source
One 9V battery (included with meter)
Real time clock (RTC) on the
EC300M also powered by
CR2032 coin battery (3V)
Operating Range
- Temperature
0 to 50 ºC (32 to 122 °F)
Operating Range -
Relative Humidity
Up to 95%
Instrument Casing
Waterproof IP-67 with cable
connector cap installed
Weight (with battery)
272 grams (.6 lbs)
Dimensions (L x W x H)
18.7 cm x 7.6 cm x 3.8 cm (7.37 in x 3
in x 1.5 in)
Memory
50 data sets on the EC300A
250 data sets on the EC300M
Auto Shutoff
Automatically powers off after
30 minutes of inactivity
Recal Timer
EC300M only - Customer
selects recalibration interval;
from 0 to 60 days
Real-Time Clock (RTC)
for Date/Time Stamp
of Saved Data
EC300M only
Waterproof USB for
Downloading Data to PC
EC300M only
606042REF-B-EC300A-EC300M-Manual-English.indd 15
12/11/2017 10:07:45 AM