Product User Guide  |  26
OM-CP-OCTPRO
Specifications subject to change. See Omega’s terms and conditions at 
www.omega.com.
BATTERY WARNING: Battery may explode or fire if mistreated. Do not 
disassemble or dispose of in fire. Do not charge except specified with 
charging condition. Do not heat above 212 °F, or short circuit. Do not 
crush or modify.
SPECIFICATIONS
GENERAL
Dimensions 6.65 in x 4.40 in x 1.41 in  
(168.9 mm x 111.8 mm x 35.8 mm)
Data logger only
Touch Screen 
Dimensions
5 inches
Number of 
Channels
8
Weight 1.3 lbs (20.8 oz)
IP Rating IP20
Start Modes Immediate Start & Delay Start
Memory 1,000,000 or 5,000,000 readings
Battery Type Rechargeable 3.7 V Lithium Ion Battery Pack
Battery Life •  Continuous on-screen sampling: 7–9 hours 
depending on display setting and reading rate
•  Stand-by mode: 100 hours
Data Format Exported .csv file format, .mtb or both
Time Accuracy ±1 minute/month
Operating
Environment
0 °C to +50 °C (32 °F to +122 °F)
0 %RH to 95 %RH non-condensing
Enclosure 
Material
Polycarbonate, TPE Protective Boot
Calibration Factory calibration is recommended annually
0 - 24 mA
Range -5 mA to 50 mA
Resolution 0.0001 mA
Accuracy ±0.024 mA (0 to 24 mA)
Input Impedance 30 Ω
0 - 100 mV
Range -100 mV to 2450 mV
Resolution 0.0001 mV
Accuracy ±0.1 mV (0 to 100 mV)
Input Impedance 1 GΩ
Maximum Voltage 3.0 V
0 - 10 V
Range -0.5 V to 12.0 V
Resolution 0.0001 V
Accuracy ± 0.01 V (-0.5 V to 12.0 V)
Input Impedance 1 GΩ
Maximum Voltage 25 V
FREQUENCY / PULSE
Maximum Count 4,000,000,000
Maximum Frequency 25 KHz
Input Signal 0 V to 12 V
Input Impedance 58 KΩ
TEMPERATURE PT-100 (2-WIRE RTD) (0.00385 CURVE)
Range -25 °C to +850 °C (Probe Dependent) 
(18.5 Ω to 390.5 Ω)
Resolution 0.01 °C
Accuracy ±0.1 °C (-200 °C to +400 °C) (Probe Dependent) 
±0.034 Ω (18.5 Ω to 247.1 Ω)
TEMPERATURE PT-100 (3-WIRE RTD) (0.00385 CURVE)
Range -25 °C to +850 °C (Probe Dependent) 
(18.5 Ω to 390.5 Ω)
Resolution 0.01 °C
Accuracy ±0.1 °C (-200 °C to +400 °C) (Probe Dependent) 
±0.034 Ω (18.5 Ω to 247.1 Ω)
TEMPERATURE PT-100 (4-WIRE RTD) (0.00385 CURVE)
Range -25 °C to +850 °C (Probe Dependent) 
(18.5 Ω to 390.5 Ω)
Resolution 0.01 °C
Accuracy ±0.1 °C (-200 °C to +400 °C) (Probe Dependent) 
±0.034 Ω (18.5 Ω to 247.1 Ω)
TEMPERATURE NTC-1 (2252)
Range -25 °C to +150 °C (Probe Dependent) 
(29,380 Ω to 41.9 Ω)
Resolution 0.01 °C
Accuracy ±0.50% FSR (Probe Dependent)
TEMPERATURE NTC-2 (10K)
Range -25 °C to +150 °C (Probe Dependent) 
(102,900 Ω to 238 Ω)
Resolution 0.01 °C
Accuracy ±0.50% FSR (Probe Dependent)
RTD Note (All RTD Configurations)
Temperature Specifications based on ideal 100 Ω PT RTD Complaint 
with IEC 751(1983) and ITS-90. Accuracy based on 4-wire configuration.