The PyroMiniUSB is a miniature USB pyrometer. It is ideal for use in benchtop, laboratory and education applications.
-20°C to 1000°C
±1% of reading or ±1ºC whichever is greater
± 0.5% of reading or ± 0.5°C whichever is greater
Response Time, t90
125 ms (90% response)
9600 baud (other configurations available upon request)
Modbus Data Format
8 data bits, no parity, 1 stop bit (other configurations available upon request)
Modbus over Serial Line
Via USB using CalexConfig, CalexSoft 2, or other Modbus software (see Operator's Guide for Modbus details)
Emissivity Setting, Averaging, Reflected Energy Compensation
Please note: The given measured spot size contains 90% of the energy detected by the sensor. We normally recommend the target is at least twice as large as the given measured spot for maximum accuracy.
Sensors may be used at longer distances than the above diagrams show. There is no maximum measurement distance in clean air; this is because Calex sensors detect only the wavelengths of infrared radiation that are not absorbed by the atmosphere.
18 mm diameter x 45 mm long (excluding cable gland)
M16 x 1 mm pitch
|Ambient Temperature Range
||0°C to 75°C
||95% max. non-condensing
Electromagnetic Compatibility Standards
EN61326-1, EN61326-2-3 (Electrical Equipment for Measurement, Control and Laboratory Use – EMC Requirements – Industrial)
Just plug the sensor directly into the USB port of a PC or laptop.
The sensor is USB powered – no other power supply is required.
The PyroMiniUSB is compatible with the free Calex software, CalexConfig and CalexSoft 2.
Download the software here
Alternatively you can communicate with the sensor from third-party software using the Modbus protocol. For details of the Modbus registers, see the PyroMiniUSB Instruction Manual.
Two models are available:
PMU21 PyroMiniUSB sensor with 2:1 optics – for large or close-up targets
PMU201 PyroMiniUSB sensor with 20:1 optics – for small or more distant targets
To find out how to order in your region, contact us