Apera Instruments SX721, User Manual, Page: 4 / 16

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2.2
ORP (mV)
Measurement range (mV/ORP/EH) -1999mV to 0 to 1999mV
Resolution 1mV
Accuracy Meter: ±0.1% FS, Overall: ±15mV
2.3
Other Technical Parameters
Data storage 200 sets
Data content
Serial number, measurement value, measurement unit, and
temperature
Power Supply Two AA alkaline batteries (1.5V x2)
Dimensions and weight
Meter: (65×120×31) mm/180g
Complete Kit: (255 x 210x 50) mm/1380g
Quality and safety certification CE, ISO 9001:2015
2.4
Working Condition
Working temperature 5 to 35°C
Working humidity ≤85%
IP rating IP57 water-resistant
3
About the Meter
3.1
Screen Display
① —— Parameter icon ② —— Measurement value
③ —— Serial number and icon as measurement to be saved and recalled and indication icon for
special states.