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InTemp® CX400 Series Temperature Logger Manual 

19996-J 

InTemp CX400 series loggers measure temperature in indoor monitoring applications. Designed 
to meet World Health Organization (WHO) and Centers for Disease Control and Prevention 
(CDC) guidelines, this logger is ideal for clinical applications, such as vaccine storage and 
pharmaceutical manufacturing. This Bluetooth® Low Energy-enabled logger is designed for 
wireless communication with a mobile device. Using the InTemp app, you can easily configure 
the logger with one of four preset configurations designed for ambient storage, clinical 
refrigerator, freezer, or refrigerator monitoring or you can set up a custom configuration for 
other applications. You can also quickly perform daily logger checks, download reports, and 
monitor tripped alarms. Use the built-in LCD screen to check the current temperature, daily 
maximum or minimum temperatures, logging status, battery use, and more. You also have the 
option to use InTempConnect® to track logger deployments and automatically upload logger 
data to build custom reports for further analysis. The CX402 model uses a 2- or 4-meter probe 
and is available with a 5, 15, or 30 mL glycol bottle (bottle holder included). It also contains an 
internal sensor for ambient temperature monitoring. The CX403 model is available with an 
internal sensor only. 

Specifications 

External Temperature Probe

 

Range 

-40° to 100°C (-40° to 212°F) 

Accuracy 

CX40x-Txxx and CX402-BxM: 
±1.0°C from -40° to -15°C (±1.8°F from -40° to 5°F) 
±0.5°C from -15° to 80°C (±0.9°F from 5° to 176°F) 
±0.7°C from 80° to 100°C (±1.3°F from 176° to 212°F) 
CX40x-VFCxxx: 
±1.0°C from -40° to -22°C (±1.8°F from -40° to -8°F) 
±0.5°C from -22° to 50°C (±0.9°F from -8° to 122°F) 
±1.0°C from 50° to 100°C (±1.8°F from 122° to 212°F) 

Resolution 

0.024°C at 25°C (0.04°F at 77°F) 

Drift 

<0.1°C (0.18°F) per year 

Response Time 

Probe only: 1 minute 30 seconds typical to 90% in air moving 1 m/s 
With 5 mL bottle: 10 minutes typical to 90% in air moving 1 m/s 
With 15 mL bottle: 20 minutes typical to 90% in air moving 1 m/s 
With 30 mL bottle: 25 minutes typical to 90% in air moving 1 m/s 

NIST Calibration 

CX40x-Txx and CX402-BxM: Single point NIST calibration, probe and 
logger body 
CX40x-VFCxxx: Single point NIST calibration, probe only 

Cable Length 

2 or 4 meter (6.56 or 13.12 feet) flat ribbon cable 

Probe Dimensions 

Food-grade stainless steel probe with pointed tip, 53.34 mm (2.1 inches) 
long, 3.18 mm (0.125 inches) diameter 

Ambient Temperature Sensor

 

Range 

-30° to 70°C (-22° to 158°F) 

Accuracy 

CX40x-Txxx and CX402-BxM: 
±0.5°C from -15° to 70°C (±0.9°F from 5° to 158°F) 
±1.0°C from -30° to -15°C (±1.8°F from -22° to 5°F) 
CX40x-VFCxxx: 
±1.0°C from -30° to -22°C (±1.8°F from -22° to -8°F) 
±0.5°C from -22° to 50°C (±0.9°F from -8° to 122°F) 
±1.0°C from 50° to 70°C (±1.8°F from 122° to 158°F) 

Resolution 

0.024°C at 25°C (0.04°F at 77°F) 

Drift 

<0.1°C (0.18°F) per year 

Response Time 

15 minutes typical to 90% in air moving 1 m/s 

Logger 

 

Radio Power 

1 mW (0 dBm) 

Transmission Range 

Approximately 30.5 m (100 ft) line-of-sight 

Wireless Data Standard 

Bluetooth Low Energy (Bluetooth Smart) 

InTemp CX400 Temperature 
Loggers 

Models: 

 

CX402-T205 & CX402-VFC205, 
2 meter probe and 5 mL glycol 
bottle 

 

CX402-T215 & CX402-VFC215, 
2 meter probe and 15 mL 
glycol bottle 

 

CX402-T230 & CX402-VFC230, 
2 meter probe and 30 mL 
glycol bottle 

 

CX402-T405 & CX402-VFC405, 
4 meter probe and 5 mL glycol 
bottle 

 

CX402-T415 & CX402-VFC415, 
4 meter probe and 15 mL 
glycol bottle 

 

CX402-T430 & CX402-VFC430 
4 meter probe and 30 mL 
glycol bottle 

 

CX402-T2M, CX402-B2M, & 
CX402-VFC2M, 2 meter probe 

 

CX402-T4M, CX402-B4M, & 
CX402-VFC4M, 4 meter probe 

 

CX403 

Included Items: 

 

Double-sided tape (for models 
with glycol bottles) 

 

Two AAA 1.5 V alkaline 
batteries 

 

Battery door and screw 

 

NIST Certificate of Calibration 

Required Items: 

 

InTemp app 

 

Device with iOS or Android™ 
and Bluetooth 

 

 

Summary of Contents for CX402-T215

Page 1: ...rift 0 1 C 0 18 F per year Response Time Probe only 1 minute 30 seconds typical to 90 in air moving 1 m s With 5 mL bottle 10 minutes typical to 90 in air moving 1 m s With 15 mL bottle 20 minutes typ...

Page 2: ...ambient internal sensor temperature readings Magnets There are four magnets on the back of the logger not shown in diagram for mounting Temperature Sensor This internal sensor measures ambient temper...

Page 3: ...s been downloaded the LCD will turn off automatically after 2 hours The LCD will turn back on the next time the logger connects with your device Getting Started InTempConnect is web based software whe...

Page 4: ...download the logger and continue logging These minimum and maximum values are also available in the logger reports see Downloading the Loggers For CX402 models you can click Next to switch between ex...

Page 5: ...ed formats for sharing at a later time Tap the Reports icon to access previously downloaded reports See www intempconnect com help for details on working with reports in both the app and InTempConnect...

Page 6: ...condensation If the logger gets wet remove the battery immediately and dry the circuit board Note Static electricity may cause the logger to stop logging The logger has been tested to 8 KV but avoid e...

Page 7: ...one of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from th...

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