PyroCouple, PyroEpsilon, PyroBus, PyroCAN The Calex Compact Series is a range of high quality, low cost non-contact sensors that measure the temperature of inaccessible or moving objects and materials. They measure temperatures from -20°C to 500°C, accurately and consistently, with an outstanding response time of 240 ms. All models conform to industrial EMC standards.
• Temperature range: -20°C to 500°C
• Choice of precision optics for large or small targets at short or long distances
• Fast response with high stability
• Stainless steel housing, sealed to IP65
• Quick and easy installation
• Wide range of accessories



The PyroCouple is a simple infrared temperature sensor with a choice of analogue outputs. No complicated setup is required - just connect a temperature indicator and power supply, and instantly start taking measurements.
Temperature ranges from -20°C to 500°C
Suitable for non-contact temperature measurement on most non-reflective nonmetal surfaces, such as paper, thick plastics, asphalt, painted surfaces, food, rubber and organic materials, among many others.
Choice of analogue outputs for measured temperature: Two-wire 4-20 mA, Four-wire 0-50 mV, Four-wire Type K, J or T thermocouple
Additional sensor body temperature output on four wire models: indicates the air temperature around the sensor and helps prevent overheating or overcooling
The PyroEpsilon is a simple sensor with an adjustable emissivity setting. It is ideal if the target is partially reflective.
Temperature ranges from -20°C to 500°C
Two-wire 4-20 mA output
Emissivity adjustment via a separate two-wire 4-20 mA input
Adjust the emissivity continuously during the process using a variable 4-20 mA source
Set the emissivity manually with the PyroTune emissivity adjuster
If you are not sure the emissivity of the target is high, choose the PyroEpsilon instead of the PyroCouple.
The PyroBus is a networkable, fully configurable sensor with RS485 Modbus RTU communications.
Temperature ranges from -20°C to 500°C
Up to 247 sensors may be connected to a single network.
Adjustable emissivity setting for use on a wide range of materials
Averaging function to smooth the temperature output
Peak and valley hold processing for measuring individual objects on a conveyor
Reflected energy compensation for accurately measuring the temperature of objects in ovens or chillers, from outside
Optional 6-channel touch screen terminal for local display, configuration and data logging
Connect sensors and 6-channel terminals directly to an existing RS485 Modbus system
The PyroCAN is a sensor with CAN communications.
Temperature range: -20°C to 1000°C
Raw CAN communications
Adjustable emissivity setting for measuring a variety of materials
Ideal for onboard vehicle temperature monitoring, and many other applications
Conforms with EMC standard EN 13309:2010


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