ST-TS* Series



Product Bar End
Product Bar End

ST-TS* Series

Precon Submersible Thermistor and RTD Sensors ST-TS* Series

Precon Submersible Thermistor and RTD Sensors

 

The Precon ST-TS* Series Tank Thermistor and RTD Sensors provide precision remote temperature sensing for cooling tower tanks for use in building automation systems. The active sensing element is a highly stable precision thermistor material or platinum RTD. The sensing element is rugged and sealed in a thermally conductive compound. The housing is a standard brass immersion well that has the weight to keep the sensor submersed and is compatable for all liquids suitable with brass. Water resistant cable is used.


Products
Filter:

(Wholesale customers, log in for your special pricing)

QtyModelDescriptionIn StockList PriceInternet Price
ST-TS11K PRECON IMM TANK TMS 10K 3 W/11K SHUNT SNSR In Stock99.5579.64
ST-TS11K-S PRECON IMM TANK TMS 10K 3 W/11K SHUNT SNSR SS WELL INFO102.7482.19
ST-TS11K-S-XC25 PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR SS WL JCKTD INFO157.24125.79
ST-TS11K-S-XN PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR SS WL CERT INFO108.3686.69
ST-TS11K-S-XN1 PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR SS WL NIST1 INFO128.78103.02
ST-TS11K-S-XN2 PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR SS WL NIST2 INFO134.01107.21
ST-TS11K-S-XN3 PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR SS WL NIST3 INFO139.62111.70
ST-TS11K-S-XP PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR SS WL MTCHD INFO107.6286.10
ST-TS11K-X40 PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR 40FT INFO195.84156.67
ST-TS11K-XC25 PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR 25FT JACKD INFO154.05123.24
ST-TS11K-XN PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR CERT INFO105.1784.14
ST-TS11K-XN1 PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR NIST 1PT INFO125.59100.47
ST-TS11K-XN2 PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR NIST 2PT INFO130.82104.66
ST-TS11K-XN3 PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR NIST 3PT INFO136.43109.14
ST-TS11K-XP PRECN IMM TANK TMS 10K 3 W/11K SHUNT SNSR MATCHED INFO104.4383.54
ST-TS21 PRECN IMM TANK TMS 21 2252 OHM SENSOR INFO93.7474.99
ST-TS21-S PRECON IMMER TANK THMS 21 2252 OHM STAINLESS WELL INFO96.9377.54
ST-TS21-S-XC25 PRECN IMM TANK TMS 21 2252 OHM 25 FT JACKTD SS WEL INFO151.43121.14
ST-TS21-S-XN PRECN IMM TANK TMS 21 2252 OHM CERT CONF SS WEL INFO102.5582.04
ST-TS21-S-XN1 PRECN IMM TANK TMS 21 2252 OHM NIST 1 PT SS WEL INFO122.9798.38
ST-TS21-S-XN2 PRECN IMM TANK TMS 21 2252 OHM NIST 2 PT SS WEL INFO128.20102.56
ST-TS21-S-XN3 PRECN IMM TANK TMS 21 2252 OHM NIST 3 PT SS WEL INFO133.82107.06
ST-TS21-S-XP PRECN IMM TANK TMS 21 2252 OHM MATCHD PAIR SS WEL INFO101.8181.45
ST-TS21-XC25 PRECON IMMER TANK THMS 21 2252 OHM 25 FT JACKETD INFO148.24118.59
ST-TS21-XN PRECON IMMERSION TANK THMS 21 2252 OHM CERT CONF INFO99.3679.49
ST-TS21-XN1 PRECON IMMERSION TANK THMS 21 2252 OHM NIST 1 PT INFO119.7895.82
ST-TS21-XN2 PRECON IMMERSION TANK THMS 21 2252 OHM NIST 2 PT INFO125.01100.01
ST-TS21-XN3 PRECON IMMERSION TANK THMS 21 2252 OHM NIST 3 PT INFO130.63104.50
ST-TS21-XP PRECON IMMER TANK THMS 21 2252 OHM MATCHED PAIR INFO98.6278.90
ST-TS22 PRECON IMMERSION TANK THMS 22 3000 OHM INFO93.7474.99
ST-TS22-S PRECON IMMER TANK THMS 22 3000 OHM STAINLESS WELL INFO96.9377.54
ST-TS22-S-XC25 PRECN IMM TANK TMS 22 3000 OHM 25 FT JACKTD SS WEL INFO151.43121.14
ST-TS22-S-XN PRECN IMM TANK TMS 22 3000 OHM CERT CONF SS WEL INFO102.5582.04
ST-TS22-S-XN1 PRECN IMM TANK TMS 22 3000 OHM NIST 1 PT SS WEL INFO122.9798.38
ST-TS22-S-XN2 PRECN IMM TANK TMS 22 3000 OHM NIST 2 PT SS WEL INFO128.20102.56
ST-TS22-S-XN3 PRECN IMM TANK TMS 22 3000 OHM NIST 3 PT SS WEL INFO133.82107.06
ST-TS22-S-XP PRECN IMM TANK TMS 22 3000 OHM MATCHD PAIR SS WEL INFO101.8181.45
ST-TS22-XC25 PRECON IMMER TANK THMS 22 3000 OHM 25 FT JACKETD INFO148.24118.59
ST-TS22-XN PRECON IMMERSION TANK THMS 22 3000 OHM CERT CONF INFO99.3679.49
ST-TS22-XN1 PRECON IMMERSION TANK THMS 22 3000 OHM NIST 1 PT INFO119.7895.82
ST-TS22-XN2 PRECON IMMERSION TANK THMS 22 3000 OHM NIST 2 PT INFO125.01100.01
ST-TS22-XN3 PRECON IMMERSION TANK THMS 22 3000 OHM NIST 3 PT INFO130.63104.50
ST-TS22-XP PRECON IMMER TANK THMS 22 3000 OHM MATCHED PAIR INFO98.6278.90
ST-TS24 PRECON IMMERSION TANK THMS 24 10K TYPE II In Stock93.7474.99
ST-TS24-S PRECON IMMER TANK THMS 24 10K TYPE II STNLESS WELL In Stock96.9377.54
ST-TS24-S-XC25 PRECN IMM TANK TMS 24 10K TYP 2 25 FT JACK SS WEL INFO151.43121.14
ST-TS24-S-XN PRECN IMM TANK TMS 24 10K TYPE 2 CERT CONF SS WEL INFO102.5582.04
ST-TS24-S-XN1 PRECN IMM TANK TMS 24 10K TYPE 2 NIST 1 PT SS WEL INFO122.9798.38
ST-TS24-S-XN2 PRECN IMM TANK TMS 24 10K TYPE 2 NIST 2 PT SS WEL INFO128.20102.56
ST-TS24-S-XN3 PRECN IMM TANK TMS 24 10K TYPE 2 NIST 3 PT SS WEL INFO133.82107.06
ST-TS24-S-XP PRECN IMM TANK TMS 24 10K TYPE 2 MTCHD PAIR SS WEL INFO101.8181.45
ST-TS24-XC25 PRECON IMMER TANK THMS 24 10K TYP II 25 FT JACKTD In Stock148.24118.59
ST-TS24-XN PRECON IMM TANK THMS 24 10K TYPE II CERT CONF INFO99.3679.49
ST-TS24-XN1 PRECON IMMERN TANK THMS 24 10K TYPE II NIST 1 PT INFO119.7895.82
ST-TS24-XN2 PRECON IMMERS TANK THMS 24 10K TYPE II NIST 2 PT INFO125.01100.01
ST-TS24-XN3 PRECON IMMERS TANK THMS 24 10K TYPE II NIST 3 PT INFO130.63104.50
ST-TS24-XP PRECON IMMER TANK THMS 24 10K TYPE II MATCHED PAIR INFO98.6278.90
ST-TS27 PRECON IMMERSION TANK THMS 27 100K OHM In Stock93.7474.99
ST-TS27-S PRECON IMMER TANK THMS 27 100K OHM STAINLESS WELL INFO96.9377.54
ST-TS27-S-XC25 PRECN IMM TANK TMS 27 100K OHM 25 FT JACKTD SS WEL INFO151.43121.14
ST-TS27-S-XN PRECN IMM TANK TMS 27 100K OHM CERT CONF SS WEL INFO102.5582.04
ST-TS27-S-XN1 PRECN IMM TANK TMS 27 100K OHM NIST 1 PT SS WEL INFO122.9798.38
ST-TS27-S-XN2 PRECN IMM TANK TMS 27 100K OHM NIST 2 PT SS WEL INFO128.20102.56
ST-TS27-S-XN3 PRECN IMM TANK TMS 27 100K OHM NIST 3 PT SS WEL INFO133.82107.06
ST-TS27-S-XP PRECN IMM TANK TMS 27 100K OHM MATCHD PAIR SS WEL INFO98.6278.90
ST-TS27-XC25 PRECON IMMER TANK THMS 27 100K OHM 25 FT JACKETD INFO148.24118.59
ST-TS27-XN PRECON IMMERSION TANK THMS 27 100K OHM CERT CONF INFO99.3679.49
ST-TS27-XN1 PRECON IMMERSION TANK THMS 27 100K OHM NIST 1 PT INFO119.7895.82
ST-TS27-XN2 PRECON IMMERSION TANK THMS 27 100K OHM NIST 2 PT INFO125.01100.01
ST-TS27-XN3 PRECON IMMERSION TANK THMS 27 100K OHM NIST 3 PT INFO130.63104.50
ST-TS27-XP PRECON IMMER TANK THMS 27 100K OHM MATCHED PAIR INFO98.6278.90
ST-TS3 PRECON IMMERSION TANK THMS 3 10K TYPE III In Stock93.7474.99
ST-TS3-S PRECON IMMER TANK THMS 10K TYPE 3 STNLESS WELL INFO96.9377.54
ST-TS3-S-XC25 PRECN IMM TANK TMS 3 10K TYP 3 25 FT JACKTD SS WEL In Stock151.43121.14
ST-TS3-S-XN PRECN IMM TANK TMS 10K TYPE 3 CERT CONF SS WEL INFO102.5582.04
ST-TS3-S-XN1 PRECN IMM TANK TMS 3 10K TYPE III NIST 1 PT SS WEL INFO122.9798.38
ST-TS3-S-XN2 PRECN IMM TANK TMS 10K TYPE 3 NIST 2 PT SS WEL INFO128.20102.56
ST-TS3-S-XN3 PRECN IMM TANK TMS 3 10K TYPE III NIST 3 PT SS WEL INFO133.82107.06
ST-TS3-S-XP PRECN IMM TANK TMS 10K TYPE 3 MATCHED PAIR SS WEL INFO101.8181.45
ST-TS3-X40 PRECON IMMER TANK THMS 3 10K TYP III 40 FT INFO190.04152.03
ST-TS3-XC25 PRECON IMMER TANK THMS 3 10K TYP III 25 FT JACKTD In Stock148.24118.59
ST-TS3-XN PRECON IMM TANK THMS 3 10K TYPE III CERT CONF INFO99.3679.49
ST-TS3-XN1 PRECON IMMERN TANK THMS 3 10K TYPE III NIST 1 PT INFO119.7895.82
ST-TS3-XN2 PRECON IMMERS TANK THMS 3 10K TYPE III NIST 2 PT INFO125.01100.01
ST-TS3-XN3 PRECON IMMERS TANK THMS 3 10K TYPE III NIST 3 PT INFO130.63104.50
ST-TS3-XP PRECON IMMER TANK THMS 3 10K TYPE III MATCHED PAIR INFO98.6278.90
ST-TS42 PRECON IMMERSION TANK THMS 42 20K OHM In Stock93.7474.99
ST-TS42-S PRECON IMMER TANK THMS 42 20K OHM STAINLESS WELL INFO96.9377.54
ST-TS42-S-XC25 PRECN IMM TANK TMS 42 20K OHM 25 FT JACKETD SS WEL INFO151.43121.14
ST-TS42-S-XN PRECN IMM TANK TMS 42 20K OHM CERT CONF SS WEL INFO102.5582.04
ST-TS42-S-XN1 PRECN IMM TANK TMS 42 20K OHM NIST 1 PT SS WEL INFO122.9798.38
ST-TS42-S-XN2 PRECN IMM TANK TMS 42 20K OHM NIST 2 PT SS WEL INFO128.20102.56
ST-TS42-S-XN3 PRECN IMM TANK TMS 42 20K OHM NIST 3 PT SS WEL INFO133.82107.06
ST-TS42-S-XP PRECN IMM TANK TMS 42 20K OHM MATCHED PAIR SS WEL INFO101.8181.45
ST-TS42-XC25 PRECON IMMER TANK THMS 42 20K OHM 25 FT JACKETD INFO148.24118.59
ST-TS42-XN PRECON IMM TANK THMS 42 20K OHM CERT CONF INFO99.3679.49
ST-TS42-XN1 PRECON IMMERSION TANK THMS 42 20K OHM NIST 1 PT INFO119.7895.82
ST-TS42-XN2 PRECON IMMERSION TANK THMS 42 20K OHM NIST 2 PT INFO125.01100.01
ST-TS42-XN3 PRECON IMMERSION TANK THMS 42 20K OHM NIST 3 PT INFO130.63104.50
ST-TS42-XP PRECON IMMER TANK THMS 42 20K OHM MATCHED PAIR INFO98.6278.90
ST-TS63 PRECON IMMERSION TANK RTD 63 1000 OHM NICKEL In Stock112.1289.70
ST-TS63-S PRECON IMM TANK THMS NICKEL 1000 OHM STNLESS WELL INFO115.3192.25
ST-TS63-S-XC25 PRECN IMM TANK RTD NICKL 1K OHM 25 FT JACK SS WEL INFO169.81135.85
ST-TS63-S-XN PRECN IMM TANK RTD NICKEL 1K OHM CERT CONF SS WEL INFO120.9396.74
ST-TS63-S-XN1 PRECN IMM TANK RTD NICKEL 1K OHM NIST 1 PT SS WEL INFO141.35113.08
ST-TS63-S-XN2 PRECN IMM TANK RTD NICKEL 1K OHM NIST 2 PT SS WEL INFO146.58117.26
ST-TS63-S-XN3 PRECN IMM TANK RTD NICKEL 1K OHM NIST 3 PT SS WEL INFO152.20121.76
ST-TS63-S-XP PRECN IMM TANK RTD NICKL 1K OHM MATCHD PAIR SS WEL INFO120.1996.15
ST-TS63-XC25 PRECON IMM TANK THMS NICKEL 1000 OHM 25 FT JACKETD In Stock166.62133.30
ST-TS63-XN PRECON IMM TANK THMS NICKEL 1000 OHM CERT CONF INFO117.7494.19
ST-TS63-XN1 PRECON IMMERSN TANK THMS NICKEL 1000 OHM NIST 1 PT INFO138.16110.53
ST-TS63-XN2 PRECON IMMERN TANK THMS NICKEL 1000 OHM NIST 2 PT INFO143.39114.71
ST-TS63-XN3 PRECON IMMERS TANK THMS NICKEL 1000 OHM NIST 3 PT INFO149.01119.21
ST-TS63-XP PRECON IMM TANK THMS NICKEL 1000 OHM MATCHED PAIR INFO117.0093.60
ST-TS71 PRECON IMMER TANK THMS 100 OHM ULTRA ACCURATE INFO230.36184.29
ST-TS71-S PRECON IMMR TANK THMS 100 OHM ULTRA STAINLESS WELL INFO233.48186.78
ST-TS71-S-XC25 PRECN IMM TANK RTD 100 OHM ULTR 25 FT JACK SS WEL INFO286.91229.53
ST-TS71-S-XN PRECN IMM TANK RTD 100 OHM ULTR CERT CONF SS WEL INFO238.99191.19
ST-TS71-S-XN1 PRECN IMM TANK RTD 100 OHM ULTR NIST 1 PT SS WEL INFO259.01207.21
ST-TS71-S-XN2 PRECN IMM TANK RTD 100 OHM ULTR NIST 2 PT SS WEL INFO264.14211.31
ST-TS71-S-XN3 PRECN IMM TANK RTD 100 OHM ULTR NIST 3 PT SS WEL INFO269.64215.71
ST-TS71-S-XP PRECN IMM TANK RTD 100 OHM ULTR MATCHD PAIR SS WEL INFO238.43190.74
ST-TS71-XC25 PRECON IMMR TANK THMS 100 OHM ULTRA 25 FT JACKETD INFO283.78227.02
ST-TS71-XN PRECON IMMERSION TANK THMS 100 OHM ULTRA CERT CONF INFO235.86188.69
ST-TS71-XN1 PRECON IMMERSION TANK THMS 100 OHM ULTRA NIST 1 PT INFO255.88204.70
ST-TS71-XN2 PRECON IMMERSION TANK THMS 100 OHM ULTRA NIST 2 PT INFO261.01208.81
ST-TS71-XN3 PRECON IMMERSION TANK THMS 100 OHM ULTRA NIST 3 PT INFO266.52213.22
ST-TS71-XP PRECON IMMER TANK THMS 100 OHM ULTRA MATCHED PAIR INFO235.30188.24
ST-TS81 PRECON IMMERSION TANK RTD 81 100 OHM INFO105.2984.23
ST-TS81-S PRECON IMMER TANK THMS 81 100 OHM STAINLESS WELL INFO108.4886.78
ST-TS81-S-XC25 PRECN IMM TANK RTD 81 100 OHM 25 FT JACKTD SS WEL INFO162.98130.38
ST-TS81-S-XN PRECN IMM TANK RTD 81 100 OHM CERT CONF SS WEL INFO114.1091.28
ST-TS81-S-XN1 PRECN IMM TANK RTD 81 100 OHM NIST 1 PT SS WEL INFO134.52107.62
ST-TS81-S-XN2 PRECN IMM TANK RTD 81 100 OHM NIST 2 PT SS WEL INFO139.75111.80
ST-TS81-S-XN3 PRECN IMM TANK RTD 81 100 OHM NIST 3 PT SS WEL INFO145.37116.30
ST-TS81-S-XP PRECN IMM TANK RTD 81 100 OHM MATCHD PAIR SS WEL INFO113.3790.70
ST-TS81-XC25 PRECON IMMER TANK THMS 81 100 OHM 25 FT JACKETD INFO159.79127.83
ST-TS81-XN PRECON IMMERSION TANK THMS 81 100 OHM CERT CONF INFO110.9188.73
ST-TS81-XN1 PRECON IMMERSION TANK THMS 81 100 OHM NIST 1 PT INFO131.33105.06
ST-TS81-XN2 PRECON IMMERSION TANK THMS 81 100 OHM NIST 2 PT INFO136.56109.25
ST-TS81-XN3 PRECON IMMERSION TANK THMS 81 100 OHM NIST 3 PT INFO142.18113.74
ST-TS81-XP PRECON IMMER TANK THMS 81 100 OHM MATCHED PAIR INFO110.1788.14
ST-TS85 PRECON IMMERSION TANK RTD 85 1000 OHM In Stock105.2984.23
ST-TS85-S PRECON IMMER TANK THMS 85 1000 OHM STAINLESS WELL In Stock108.4886.78
ST-TS85-S-XC25 PRECN IMM TANK RTD 85 1000 OHM 25 FT JACKTD SS WEL In Stock162.98130.38
ST-TS85-S-XN PRECN IMM TANK RTD 85 1000 OHM CERT CONF SS WEL INFO114.1091.28
ST-TS85-S-XN1 PRECN IMM TANK RTD 85 1000 OHM NIST 1 PT SS WEL INFO134.52107.62
ST-TS85-S-XN2 PRECN IMM TANK RTD 85 1000 OHM NIST 2 PT SS WEL INFO139.75111.80
ST-TS85-S-XN3 PRECN IMM TANK RTD 85 1000 OHM NIST 3 PT SS WEL INFO145.37116.30
ST-TS85-S-XP PRECN IMM TANK RTD 85 1000 OHM MATCHED PAIR SS WEL INFO113.3790.70
ST-TS85-XC25 PRECON IMMER TANK THMS 85 1000 OHM 25 FT JACKETD In Stock159.79127.83
ST-TS85-XN PRECON IMMERSION TANK THMS 85 1000 OHM CERT CONF INFO110.9188.73
ST-TS85-XN1 PRECON IMMERSION TANK THMS 85 1000 OHM NIST 1 PT INFO131.33105.06
ST-TS85-XN2 PRECON IMMERSION TANK THMS 85 1000 OHM NIST 2 PT INFO136.56109.25
ST-TS85-XN3 PRECON IMMERSION TANK THMS 85 1000 OHM NIST 3 PT INFO142.18113.74
ST-TS85-XP PRECON IMMER TANK THMS 85 1000 OHM MATCHED PAIR INFO110.1788.14
ST-TS91 PRECON IMMERSION TANK RTD 91 1000 OHM INFO105.2984.23
ST-TS91-S PRECON IMMER TANK THMS 91 1000 OHM STAINLESS WELL INFO108.4886.78
ST-TS91-S-XC25 PRECN IMM TANK RTD 91 1000 OHM 25 FT JACKTD SS WEL INFO162.98130.38
ST-TS91-S-XN PRECN IMM TANK RTD 91 1000 OHM CERT CONF SS WEL INFO114.1091.28
ST-TS91-S-XN1 PRECN IMM TANK RTD 91 1000 OHM NIST 1 PT SS WEL INFO134.52107.62
ST-TS91-S-XN2 PRECN IMM TANK RTD 91 1000 OHM NIST 2 PT SS WEL INFO139.75111.80
ST-TS91-S-XN3 PRECN IMM TANK RTD 91 1000 OHM NIST 3 PT SS WEL INFO145.37116.30
ST-TS91-S-XP PRECN IMM TANK RTD 91 1000 OHM MATCHD PAIR SS WEL INFO113.3790.70
ST-TS91-XC25 PRECON IMMER TANK THMS 91 1000 OHM 25 FT JACKETD INFO159.79127.83
ST-TS91-XN PRECON IMMERSION TANK THMS 91 1000 OHM CERT CONF INFO110.9188.73
ST-TS91-XN1 PRECON IMMERSION TANK THMS 91 1000 OHM NIST 1 PT INFO131.33105.06
ST-TS91-XN2 PRECON IMMERSION TANK THMS 91 1000 OHM NIST 2 PT INFO136.56109.25
ST-TS91-XN3 PRECON IMMERSION TANK THMS 91 1000 OHM NIST 3 PT INFO142.18113.74
ST-TS91-XP PRECON IMMER TANK THMS 91 1000 OHM MATCHED PAIR INFO110.1788.14

Accessories

No accessories found
Features
  • Lifetime warranty
  • Wide selection of thermistor and RTD curves
  • Brass thermowell for quick temperature response
  • Water resistant cable
  • Ultra high accuracy optional
  • One piece design
Specifications

Accuracy:

Thermistor:±0.36℉ (0.2℃)

RTD:

Type 63:±0.72℉ (0.40℃)

Type 71:±0.054℉ (0.03℃)

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:

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

Mounting:Lower sensor into cooling tower tank, support cable at wiring box, use water proof connectors

Wiring Terminations:8' (2.44m) 2 conductor for SJO 18/2 water resistant black cable

Weight:0.8 lb (0.36 Kg)

Approvals:CE

Warranty:Lifetime

Certifications






Download Additional Data

document   Catalog Page