DO Probe Tester, 9V

SKU: 7803-31750

Handheld unit designed for testing polarographic DO probes prior to
transmitter calibration
LCD display provides the absolute nA value to qualify probe status
Zero and span ranges are verified using 100% N2 and 100% air
Testing done in situ without compromising sterility
Battery test insures proper operation
Replaceable 9V battery
power requirements: 9V battery (supplied)
Range 0-500 nA
Resolution: ± 1nA
Zero: ±1 nA
Input impedance: 100K ohms
Display type: LCD
Battery test: 100% = 9V
Battery range: 80-110%
Battery nominal draw: 20mA maximum
*replace battery if test reading falls below 80%