These three sensor families offer a variety of options for measuring most common materials in low temperature (0-1000°F / 0-500°C) applications. 
 
 
Standard Features:

• Broad temperature ranges -40 to 932°F (-40 to 500°C)
• 8-14um operating wavelength
• Line of Site and (optional Laser Sighting Tool)
• D/2 and D/20 optics
• Two-Wire 4-20mA output
• Compact design with a rugged stainless steel enclosure (NEMA 4 / IP65)
• A wide selection of accessories

200 Series - Fixed sensor settings with and emissivity value of 0.95 and a 250ms response time.  In addition to the two-wire 4-20mA output, there are seven optional four-wire mV outputs including Type J and K Thermocouple outputs.
 
300 Series   - Modular design with miniature sensing head that withstands ambient temperatures as high as 160°F (70°C), and like the 200 Series it includes the optional mV outputs.
 
400 Series ¡V Includes Calex link PC software to configure the sensor's temperature range, emissivity, and signal conditioning functions that include average, maximum, minimum, and instantaneous readings, plus peak and valley hold.
 

TRANSTEMP 200, 300, & 400 SERIES - Two-Wire Single Wavelength (1 l ) Sensors - Two-Wire Single Wavelength (1
Model	Temperature Range		Optical Resolutions
	Celsius	Fahrenheit	Near	Far
200 Series ¡V Compact Sensor with 4-20mA or mV output and a fixed emissivity of 0.95 ¡V Compact Sensor with 4-20mA or mV output and a fixed emissivity of 0.95
290-1	-20 - 100°C	-4 - 212°F	2:1	20:1
290-2	0 ¡V 250°C	32 - 482°F	2:1	20:1
290-3	0 ¡V 500°C	32 - 932°F	n/a	20:1
300 Series ¡V Miniature, Two-Piece Sensor with 4-20mA or mV output and a fixed emissivity of 0.95 ¡V Miniature, Two-Piece Sensor with 4-20mA or mV output and a fixed emissivity of 0.95
390-1	-20 - 100°C	-4 - 212°F	2:1	20:1
390-2	0 - 250°C	32 - 482°F	2:1	20:1
390-3	0 - 500°C	32 - 932°F	n/a	20:1
400 Series ¡V High Performance Sensor with 4-20mA output and adjustable sensor settings such as emissivity and other signal conditioning parameters via PC based Calex Link software that is included with every sensor ¡V High Performance Sensor with 4-20mA output and adjustable sensor settings such as emissivity and other signal conditioning parameters via PC based Calex Link software that is included with every sensor
490-4	-20 - 500°C	-4 - 932°F	7:1	20:1
490-5	-40 - 500°C	-40 - 932°F	n/a	20:1

 
Options and Accessories:

• Fixed mounting bracket
• Adjustable mounting bracket
• Air Purge
• Water Cooling Air Purge
• Laser Sighting Tool
• Longer Electrical Cable (5m Max)