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Temperature Sensors & Transmitters
Temperature sensors and transmitters allow the monitoring, control, and even the measurement of temperature. At their most basic, these sensors and transmitters comprise two elements: a temperature-measuring device (the sensor part), which is the part that does the "sensing"; and a signal-processing component (the transmitter part), which converts the kind of signal generated by the "sensing" into a format that can be displayed or further processed.
Resistance temperature detectors (RTDs) and thermocouples are two of the most popular temperature-sensing technologies. As their name suggests, RTDs measure temperature by detecting changes in electrical resistance. In the case of an RTD that uses platinum, the resistance change is highly linear with temperature.
Taking a signal from a temperature sensor and converting it into a standardized output is the job of temperature transmitters. Transmitters can be used with either thermocouples or RTDs, but using them with RTDs seems to be becoming more common.
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ACI 152212 10,000 Ohm Thermistor (Type II)
$85.95
$210.10
10,000 Ohm Thermistor (Type II), Rigid Probe Averaging, 48", NEMA 4X Enclosure
ACI 152249 10,000 Ohm Thermistor
$37.80
$92.40
10,000 Ohm Thermistor, Room (R2, Black), Setpoint 886 to 1266 Ohms, Override, Blue/Red Sticker
ACI 152839 1,800 Ohm Thermistor (Type III)
$96.30
$235.40
1,800 Ohm Thermistor (Type III), Room (R), Setpoint 0 to 10K Ohms, Override, LCD, Cool/Warm Sticker
ACI 152476 10,000 Ohm Thermistor
$94.50
$231.00
10,000 Ohm Thermistor, Immersion, Machined Well, 6", NEMA 3R Enclosure
ACI 152246 10,000 Ohm Thermistor w/11K Shunt
$71.55
$174.90
10,000 Ohm Thermistor w/11K Shunt, Immersion, Machined Well, 4", NEMA 4X Enclosure
ACI 152592 5,000 Ohm Thermistor
$60.30
$147.40
5,000 Ohm Thermistor, Immersion, Machined Well, 4", Galvanized Enclosure
ACI 152289 10,000 Ohm Thermistor (Type II)
$381.15
$931.70
10,000 Ohm Thermistor (Type II), Hazardous, Duct, 2"
ACI 152403 10,000 Ohm Thermistor (Type III)
$45.45
$111.10
10,000 Ohm Thermistor (Type III), Connection Head Probe, 1/2" X 1/2" NPT, 2"
ACI 152218 10,000 Ohm Thermistor (Type III)
$115.65
$282.70
10,000 Ohm Thermistor (Type III), 2" Freezer Probe 316 SS, 50'
ACI 152494 10,000 Ohm Thermistor w/11K Shunt
$32.85
$80.30
10,000 Ohm Thermistor w/11K Shunt, Duct, 48", Plastic Enclosure
ACI 152807 5,000 Ohm Thermistor
$63.90
$156.20
5,000 Ohm Thermistor, Duct, 4", NEMA 4X Enclosure, NIST Cert