ST-A* Series



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ST-A* Series

Precon All-Purpose Thermistor and RTD Sensors ST-A* Series

Precon All-Purpose Thermistor and RTD Sensors

 

The Precon ST-A Series All Purpose Thermistor and RTD Sensors provide precision remote temperature sensing for building automation systems and mechanical equipment room instrumentation. The active sensing element is made of a highly stable precision thermistor material or platinum RTDs. Each ST-A sensor is a rugged, point-sensitive waterproof sensor featuring a 9" (22.8 cm) 304 stainless steel probe and brass fitting. The brass fitting has a 1/2" NPT male thread. The sensors are supplied with two 1/2" locknuts for easy installation in handy boxes (or other enclosures with 1/2" knockouts).


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QtyModelDescriptionIn StockList PriceInternet Price
ST-A11K TEMP SENSOR, DUCT, 10K TYPE III [11K SHUNT], 9.00" PROBE, NO ENCL, NO OUTPUTINFO62.0034.72
ST-A11K-X25 TEMP SENSOR, DUCT, 10K TYPE III [11K SHUNT], 9.00" PROBE, NO ENCL, NO OUTPUTINFO68.0038.08
ST-A11K-XN3 TEMP SENSOR, DUCT, 10K TYPE III [11K SHUNT], 9.00" PROBE, NO ENCL, NO OUTPUTINFO100.0056.00
ST-A11K-XW TEMP SENSOR, DUCT, 10K TYPE III [11K SHUNT], 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO114.0063.84
ST-A11K-XW-XL4 TEMP SENSOR, DUCT, 10K TYPE III [11K SHUNT], 4.00" PROBE, METALLIC ENCL, NO OUTPUTINFO95.0053.20
ST-A21 TEMP SENSOR, DUCT, 2.252K, 9.00" PROBE, NO ENCL, NO OUTPUTINFO55.0030.80
ST-A21-XC25 TEMP SENSOR, DUCT, 2.252K, 9.00" PROBE, NO ENCL, NO OUTPUTINFO86.0048.16
ST-A22 TEMP SENSOR, DUCT, 3K, 9.00" PROBE, NO ENCL, NO OUTPUTINFO55.0030.80
ST-A22-XH TEMP SENSOR, DUCT, 3K, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO78.0043.68
ST-A24 TEMP SENSOR, DUCT, 10K TYPE II, 9.00" PROBE, NO ENCL, NO OUTPUTIn Stock55.0030.80
ST-A24-X25 TEMP SENSOR, DUCT, 10K TYPE II, 9.00" PROBE, NO ENCL, NO OUTPUTINFO61.0034.16
ST-A24-XC25 TEMP SENSOR, DUCT, 10K TYPE II, 9.00" PROBE, NO ENCL, NO OUTPUTINFO86.0048.16
ST-A24-XCO TEMP SENSOR, DUCT, 10K TYPE II, 9.00" PROBE, NO ENCL, NO OUTPUTINFO136.0076.16
ST-A24-XCP25 TEMP SENSOR, DUCT, 10K TYPE II, 9.00" PROBE, NO ENCL, NO OUTPUTINFO80.0044.80
ST-A24-XH TEMP SENSOR, DUCT, 10K TYPE II, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO78.0043.68
ST-A24-XHP TEMP SENSOR, DUCT, 10K TYPE II, 9.00" PROBE, POLY ENCL, NO OUTPUTINFO75.0042.00
ST-A24-XL12 TEMP SENSOR, DUCT, 10K TYPE II, 12.00" PROBE, NO EINFO58.0032.48
ST-A24-XL4 TEMP SENSOR, DUCT, 10K TYPE II, 4.00" PROBE, NO ENCL, NO OUTPUTINFO59.0033.04
ST-A24-XN1 TEMP SENSOR, DUCT, 10K TYPE II, 9.00" PROBE, NO ENCL, NO OUTPUTINFO84.0047.04
ST-A24-XP TEMP SENSOR, DUCT, 10K TYPE II, 9.00" PROBE, NO ENCL, NO OUTPUTINFO59.0033.04
ST-A24-XW TEMP SENSOR, DUCT, 10K TYPE II, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO105.0058.80
ST-A27 TEMP SENSOR, DUCT, 100K, 9.00" PROBE, NO ENCL, NO OUTPUTINFO55.0030.80
ST-A27-X25 TEMP SENSOR, DUCT, 100K, 9.00" PROBE, NO ENCL, NO OUTPUTINFO61.0034.16
ST-A27-XH TEMP SENSOR, DUCT, 100K, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO78.0043.68
ST-A27-XW TEMP SENSOR, DUCT, 100K, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO105.0058.80
ST-A3 TEMP SENSOR, DUCT, 10K TYPE III, 9.00" PROBE, NO ENCL, NO OUTPUTIn Stock55.0030.80
ST-A3-X25 TEMP SENSOR, DUCT, 10K TYPE III, 9.00" PROBE, NO ENCL, NO OUTPUTINFO61.0034.16
ST-A3-XCO TEMP SENSOR, DUCT, 10K TYPE III, 9.00" PROBE, NO ENCL, NO OUTPUTIn Stock136.0076.16
ST-A3-XD TEMP SENSOR, DUCT, 10K TYPE III, 9.00" PROBE, NO ENCL, NO OUTPUTINFO69.0038.64
ST-A3-XH TEMP SENSOR, DUCT, 10K TYPE III, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO78.0043.68
ST-A3-XH-XL24 TEMP SENSOR, DUCT, 10K TYPE III, 24.00" PROBE, METALLIC ENCL, NO OUTPUTINFO94.0052.64
ST-A3-XL TEMP SENSOR, DUCT, 10K TYPE III, CUSTOM PROBE 1-108", NO ENCLINFO47.9426.85
ST-A3-XL2 TEMP SENSOR, DUCT, 10K TYPE III, 4-7/8" PROBE, NO ENCLIn Stock53.0029.68
ST-A3-XL2 IN TEMP SENSOR, DUCT, 10K TYPE III, 2.00" PROBE, NO ENCLIn Stock47.9426.85
ST-A3-XP TEMP SENSOR, DUCT, 10K TYPE III, 9.00" PROBE, NO ENCL, NO OUTPUTINFO59.0033.04
ST-A3-XW TEMP SENSOR, DUCT, 10K TYPE III, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO105.0058.80
ST-A42 TEMP SENSOR, DUCT, 20K, 9.00" PROBE, NO ENCL, NO OUTPUTINFO55.0030.80
ST-A42-X25 TEMP SENSOR, DUCT, 20K, 9.00" PROBE, NO ENCL, NO OUTPUTINFO61.0034.16
ST-A42-XC25 TEMP SENSOR, DUCT, 20K, 9.00" PROBE, NO ENCL, NO OUTPUTINFO86.0048.16
ST-A42-XH TEMP SENSOR, DUCT, 20K, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO78.0043.68
ST-A42-XL24-XW TEMP SENSOR, DUCT, 20K, 24.00" PROBE, METALLIC ENCINFO93.0052.08
ST-A42-XW-X25 TEMP SENSOR, DUCT, 20K, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO92.0051.52
ST-A5 TEMP SENSOR, DUCT, 1K BALCO RTD, 8.25" PROBE, NO ENCLINFO252.00141.12
ST-A63 TEMP SENSOR, DUCT, 1K NI RTD, 9.00" PROBE, NO ENCL, NO OUTPUTINFO151.0084.56
ST-A63-XC25 TEMP SENSOR, DUCT, 1K NI RTD, 9.00" PROBE, NO ENCL, NO OUTPUTINFO208.00116.48
ST-A63-XH TEMP SENSOR, DUCT, 1K NI RTD, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO194.00108.64
ST-A63-XN2 TEMP SENSOR, DUCT, 1K NI RTD, 9.00" PROBE, NO ENCL, NO OUTPUTINFO207.00115.92
ST-A71 TEMP SENSOR, DUCT, 100 RTD 385, 9.00" PROBE, NO ENCL, NO OUTPUTINFO373.00208.88
ST-A71-XC25 TEMP SENSOR, DUCT, 100 RTD 385, 9.00" PROBE, NO ENCL, NO OUTPUTINFO411.00230.16
ST-A81 TEMP SENSOR, DUCT, 100 RTD 385, 9.00" PROBE, NO ENCL, NO OUTPUTIn Stock115.0064.40
ST-A81-X25 TEMP SENSOR, DUCT, 100 RTD 385, 9.00" PROBE, NO ENCL, NO OUTPUTINFO123.0068.88
ST-A81-XD TEMP SENSOR, DUCT, 100 RTD 385, 9.00" PROBE, NO ENCL, NO OUTPUTINFO155.0086.80
ST-A81-XH TEMP SENSOR, DUCT, 100 RTD 385, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO153.0085.68
ST-A81-XW TEMP SENSOR, DUCT, 100 RTD 385, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO199.00111.44
ST-A81-XZ TEMP SENSOR, DUCT, 100 RTD 385, 9.00" PROBE, NO ENCL, NO OUTPUTIn Stock116.0064.96
ST-A85 TEMP SENSOR, DUCT, 1K RTD 385, 9.00" PROBE, NO ENCL, NO OUTPUTIn Stock115.0064.40
ST-A85-X25 TEMP SENSOR, DUCT, 1K RTD 385, 9.00" PROBE, NO ENCL, NO OUTPUTINFO123.0068.88
ST-A85-XC25 TEMP SENSOR, DUCT, 1K RTD 385, 9.00" PROBE, NO ENCL, NO OUTPUTINFO165.0092.40
ST-A85-XD TEMP SENSOR, DUCT, 1K RTD 385, 9.00" PROBE, NO ENCL, NO OUTPUTINFO155.0086.80
ST-A85-XH TEMP SENSOR, DUCT, 1K RTD 385, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO153.0085.68
ST-A85-XW TEMP SENSOR, DUCT, 1K RTD 385, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO199.00111.44
ST-A91 TEMP SENSOR, DUCT, 1K RTD 375, 9.00" PROBE, NO ENCL, NO OUTPUTIn Stock115.0064.40
ST-A91-X25 TEMP SENSOR, DUCT, 1K RTD 375, 9.00" PROBE, NO ENCL, NO OUTPUTINFO123.0068.88
ST-A91-XC25 TEMP SENSOR, DUCT, 1K RTD 375, 9.00" PROBE, NO ENCL, NO OUTPUTINFO165.0092.40
ST-A91-XH TEMP SENSOR, DUCT, 1K RTD 375, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO155.0086.80
ST-A91-XW TEMP SENSOR, DUCT, 1K RTD 375, 9.00" PROBE, METALLIC ENCL, NO OUTPUTINFO204.00114.24

Accessories

No accessories found
Features
  • Life time warranty
  • Wide selection of thermistor and RTD curves
  • Tip sensitive for precise temperature response
  • Adaptable with many options
  • All metal construction with 304 stainless steel probe
  • Easy to mount to duct, wall, or back box
  • Waterproof probe
Specifications

Accuracy:

Thermistor: ±0.36℉ (0.2℃)

RTD:

Type 63: ±0.72℉ (0.40℃)

Type 71: +/-0.0774°F (0.043°C)

Type 81, 85: ±0.27℉ (0.15℃)

Type 91: ±0.54℉ (0.30℃)

Sensor Type:

Thermistor: 2.252 kΩ, 3 kΩ, 10 kΩ Type II, III & III w/11K shunt, 20 kΩ, 100 kΩ

RTD:

Type 63: 1000Ω Nickel

Type 71, 81: 100Ω Pt 385 Curve

Type 85: 1000Ω Pt 385 Curve

Type 91:1000Ω Pt 375 Curve

Temperature Range:

Thermistor/RTD: -40° to 221℉ (-40° to 105℃)

Temperature Coefficient:

Thermistor: Negative temperature coefficient

RTD: Positive temperature coefficient

Temperature Stability:

Thermistor: 0.24℉ (0.13℃) over five years

RTD: Max 0.04% after 1k hours @ 500 ℃

Heat Dissipation: 2.7 mW/℃ (power needed to raise the temperature by 1℃)

Mounting: Directly to duct, wall, or customersupplied back box, no adapters needed for standard boxes

Wiring Terminations: 8' (2.4m) of 24 AWG pigtails with prestripped ends, type 71 & 81 have 18" leads

Weight: 0.2 lb (0.09 Kg) w/o options

Approvals: CE

Warranty: Lifetime

Certifications




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