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KTOSA* Series

KELE OSA Thermistor and RTD Sensors

The Kele KTOSA* Series OSA Temperature Thermistor and RTD Sensors are very economical and are specifically designed for HVAC applications. The mounting styles are based on proven techniques for installation efficiency and use stainless steel probes for durability. The sensors come with a three year warranty and are made with the highest quality material that offers the reliability needed in HVAC systems.

Products

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Qty	Model	Description	In Stock	List Price	Internet Price
	298426-001	OSA RSC SENSOR 10K TYPE 3	INFO	35.00	17.50
	KTOSA11K	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], NO PROBE, POLY, ENCL	INFO	38.00	19.00
	KTOSA11K-QD1/4	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA11K-X25	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], NO PROBE, POLY, ENCL	INFO	42.00	21.00
	KTOSA11K-XC25	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], NO PROBE, POLY, ENCL	INFO	55.00	27.50
	KTOSA11K-XCP25	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], NO PROBE, POLY, ENCL	INFO	52.00	26.00
	KTOSA11K-XD	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], NO PROBE, POLY, ENCL	INFO	50.00	25.00
	KTOSA11K-XN	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], NO PROBE, POLY, ENCL	INFO	41.00	20.50
	KTOSA11K-XN1	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], NO PROBE, POLY, ENCL	INFO	62.00	31.00
	KTOSA11K-XN2	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], NO PROBE, POLY, ENCL	INFO	66.00	33.00
	KTOSA11K-XN3	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], NO PROBE, POLY, ENCL	INFO	70.00	35.00
	KTOSA11K-XP	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], NO PROBE, POLY, ENCL	INFO	43.00	21.50
	KTOSA21	TEMP SENSOR, OSA, 2.252K, NO PROBE, POLY, ENCL	INFO	35.00	17.50
	KTOSA21-QD1/4	TEMP SENSOR, OSA, 2.252K, NO PROBE, POLY, ENCL	INFO	36.00	18.00
	KTOSA21-X25	TEMP SENSOR, OSA, 2.252K, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA21-XC25	TEMP SENSOR, OSA, 2.252K, NO PROBE, POLY, ENCL	INFO	52.00	26.00
	KTOSA21-XCP25	TEMP SENSOR, OSA, 2.252K, NO PROBE, POLY, ENCL	INFO	49.00	24.50
	KTOSA21-XD	TEMP SENSOR, OSA, 2.252K, NO PROBE, POLY, ENCL	INFO	43.00	21.50
	KTOSA21-XN	TEMP SENSOR, OSA, 2.252K, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA21-XN 1 PT	TEMP SENSOR, OSA, 2.252K, NO PROBE, POLY, ENCL	INFO	58.00	29.00
	KTOSA21-XN 2 PT	TEMP SENSOR, OSA, 2.252K, NO PROBE, POLY, ENCL	INFO	62.00	31.00
	KTOSA21-XN 3 PT	TEMP SENSOR, OSA, 2.252K, NO PROBE, POLY, ENCL	INFO	67.00	33.50
	KTOSA21-XP	TEMP SENSOR, OSA, 2.252K, NO PROBE, POLY, ENCL	INFO	38.00	19.00
	KTOSA22	TEMP SENSOR, OSA, 3K, NO PROBE, POLY, ENCL	INFO	35.00	17.50
	KTOSA22-QD1/4	TEMP SENSOR, OSA, 3K, NO PROBE, POLY, ENCL	INFO	36.00	18.00
	KTOSA22-X25	TEMP SENSOR, OSA, 3K, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA22-XC25	TEMP SENSOR, OSA, 3K, NO PROBE, POLY, ENCL	INFO	52.00	26.00
	KTOSA22-XCP25	TEMP SENSOR, OSA, 3K, NO PROBE, POLY, ENCL	INFO	49.00	24.50
	KTOSA22-XD	TEMP SENSOR, OSA, 3K, NO PROBE, POLY, ENCL	INFO	43.00	21.50
	KTOSA22-XN	TEMP SENSOR, OSA, 3K, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA22-XN 1 PT	TEMP SENSOR, OSA, 3K, NO PROBE, POLY, ENCL	INFO	58.00	29.00
	KTOSA22-XN 2 PT	TEMP SENSOR, OSA, 3K, NO PROBE, POLY, ENCL	INFO	62.00	31.00
	KTOSA22-XN 3 PT	TEMP SENSOR, OSA, 3K, NO PROBE, POLY, ENCL	INFO	67.00	33.50
	KTOSA22-XP	TEMP SENSOR, OSA, 3K, NO PROBE, POLY, ENCL	INFO	38.00	19.00
	KTOSA24	TEMP SENSOR, OSA, 10K TYPE II, NO PROBE, POLY, ENCL		35.00	17.50
	KTOSA24-QD1/4	TEMP SENSOR, OSA, 10K TYPE II, NO PROBE, POLY, ENCL	INFO	36.00	18.00
	KTOSA24-X25	TEMP SENSOR, OSA, 10K TYPE II, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA24-XC25	TEMP SENSOR, OSA, 10K TYPE II, NO PROBE, POLY, ENCL	INFO	52.00	26.00
	KTOSA24-XCP25	TEMP SENSOR, OSA, 10K TYPE II, NO PROBE, POLY, ENCL	INFO	49.00	24.50
	KTOSA24-XD	TEMP SENSOR, OSA, 10K TYPE II, NO PROBE, POLY, ENCL	INFO	43.00	21.50
	KTOSA24-XN	TEMP SENSOR, OSA, 10K TYPE II, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA24-XN 1 PT	TEMP SENSOR, OSA, 10K TYPE II, NO PROBE, POLY, ENCL	INFO	58.00	29.00
	KTOSA24-XN 2 PT	TEMP SENSOR, OSA, 10K TYPE II, NO PROBE, POLY, ENCL	INFO	62.00	31.00
	KTOSA24-XN 3 PT	TEMP SENSOR, OSA, 10K TYPE II, NO PROBE, POLY, ENCL	INFO	67.00	33.50
	KTOSA24-XP	TEMP SENSOR, OSA, 10K TYPE II, NO PROBE, POLY, ENCL	INFO	38.00	19.00
	KTOSA27	TEMP SENSOR, OSA, 100K, NO PROBE, POLY, ENCL	INFO	35.00	17.50
	KTOSA27-QD1/4	TEMP SENSOR, OSA, 100K, NO PROBE, POLY, ENCL	INFO	36.00	18.00
	KTOSA27-X25	TEMP SENSOR, OSA, 100K, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA27-XC25	TEMP SENSOR, OSA, 100K, NO PROBE, POLY, ENCL	INFO	52.00	26.00
	KTOSA27-XCP25	TEMP SENSOR, OSA, 100K, NO PROBE, POLY, ENCL	INFO	49.00	24.50
	KTOSA27-XD	TEMP SENSOR, OSA, 100K, NO PROBE, POLY, ENCL	INFO	43.00	21.50
	KTOSA27-XN	TEMP SENSOR, OSA, 100K, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA27-XN 1 PT	TEMP SENSOR, OSA, 100K, NO PROBE, POLY, ENCL	INFO	58.00	29.00
	KTOSA27-XN 2 PT	TEMP SENSOR, OSA, 100K, NO PROBE, POLY, ENCL	INFO	62.00	31.00
	KTOSA27-XN 3 PT	TEMP SENSOR, OSA, 100K, NO PROBE, POLY, ENCL	INFO	67.00	33.50
	KTOSA27-XP	TEMP SENSOR, OSA, 100K, NO PROBE, POLY, ENCL	INFO	38.00	19.00
	KTOSA3	TEMP SENSOR, OSA, 10K TYPE III, NO PROBE, POLY, ENCL	INFO	35.00	17.50
	KTOSA3-QD1/4	TEMP SENSOR, OSA, 10K TYPE III, NO PROBE, POLY, ENCL	INFO	36.00	18.00
	KTOSA3-X25	TEMP SENSOR, OSA, 10K TYPE III, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA3-XC25	TEMP SENSOR, OSA, 10K TYPE III, NO PROBE, POLY, ENCL	INFO	52.00	26.00
	KTOSA3-XCP25	TEMP SENSOR, OSA, 10K TYPE III, NO PROBE, POLY, ENCL	INFO	49.00	24.50
	KTOSA3-XD	TEMP SENSOR, OSA, 10K TYPE III, NO PROBE, POLY, ENCL	INFO	43.00	21.50
	KTOSA3-XN	TEMP SENSOR, OSA, 10K TYPE III, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA3-XN 1 PT	TEMP SENSOR, OSA, 10K TYPE III, NO PROBE, POLY, ENCL	INFO	58.00	29.00
	KTOSA3-XN 2 PT	TEMP SENSOR, OSA, 10K TYPE III, NO PROBE, POLY, ENCL	INFO	62.00	31.00
	KTOSA3-XN 3 PT	TEMP SENSOR, OSA, 10K TYPE III, NO PROBE, POLY, ENCL	INFO	67.00	33.50
	KTOSA3-XP	TEMP SENSOR, OSA, 10K TYPE III, NO PROBE, POLY, ENCL	INFO	38.00	19.00
	KTOSA42	TEMP SENSOR, OSA, 20K, NO PROBE, POLY, ENCL	INFO	35.00	17.50
	KTOSA42-QD1/4	TEMP SENSOR, OSA, 20K, NO PROBE, POLY, ENCL	INFO	36.00	18.00
	KTOSA42-X25	TEMP SENSOR, OSA, 20K, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA42-XC25	TEMP SENSOR, OSA, 20K, NO PROBE, POLY, ENCL	INFO	52.00	26.00
	KTOSA42-XCP25	TEMP SENSOR, OSA, 20K, NO PROBE, POLY, ENCL	INFO	49.00	24.50
	KTOSA42-XD	TEMP SENSOR, OSA, 20K, NO PROBE, POLY, ENCL	INFO	43.00	21.50
	KTOSA42-XN	TEMP SENSOR, OSA, 20K, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA42-XN 1 PT	TEMP SENSOR, OSA, 20K, NO PROBE, POLY, ENCL	INFO	58.00	29.00
	KTOSA42-XN 2 PT	TEMP SENSOR, OSA, 20K, NO PROBE, POLY, ENCL	INFO	62.00	31.00
	KTOSA42-XN 3 PT	TEMP SENSOR, OSA, 20K, NO PROBE, POLY, ENCL	INFO	67.00	33.50
	KTOSA42-XP	TEMP SENSOR, OSA, 20K, NO PROBE, POLY, ENCL	INFO	39.00	19.50
	KTOSA81	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	40.00	20.00
	KTOSA81-QD1/4	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	41.00	20.50
	KTOSA81-X25	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	45.00	22.50
	KTOSA81-XC25	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	57.00	28.50
	KTOSA81-XCP25	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	54.00	27.00
	KTOSA81-XD	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	54.00	27.00
	KTOSA81-XN	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	44.00	22.00
	KTOSA81-XN 1 PT	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	63.00	31.50
	KTOSA81-XN 2 PT	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	68.00	34.00
	KTOSA81-XN 3 PT	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	73.00	36.50
	KTOSA81-XP	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	45.00	22.50
	KTOSA81-XZ	TEMP SENSOR, OSA, 100 RTD 385, NO PROBE, POLY, ENCL	INFO	43.00	21.50
	KTOSA85	TEMP SENSOR, OSA, 1K RTD 385, NO PROBE, POLY, ENCL	INFO	40.00	20.00
	KTOSA85-QD1/4	TEMP SENSOR, OSA, 1K RTD 385, NO PROBE, POLY, ENCL	INFO	41.00	20.50
	KTOSA85-X25	TEMP SENSOR, OSA, 1K RTD 385, NO PROBE, POLY, ENCL	INFO	45.00	22.50
	KTOSA85-XC25	TEMP SENSOR, OSA, 1K RTD 385, NO PROBE, POLY, ENCL	INFO	57.00	28.50
	KTOSA85-XCP25	TEMP SENSOR, OSA, 1K RTD 385, NO PROBE, POLY, ENCL	INFO	54.00	27.00
	KTOSA85-XD	TEMP SENSOR, OSA, 1K RTD 385, NO PROBE, POLY, ENCL	INFO	54.00	27.00
	KTOSA85-XN	TEMP SENSOR, OSA, 1K RTD 385, NO PROBE, POLY, ENCL	INFO	44.00	22.00
	KTOSA85-XN 1 PT	TEMP SENSOR, OSA, 1K RTD 385, NO PROBE, POLY, ENCL	INFO	63.00	31.50
	KTOSA85-XN 2 PT	TEMP SENSOR, OSA, 1K RTD 385, NO PROBE, POLY, ENCL	INFO	68.00	34.00
	KTOSA85-XN 3 PT	TEMP SENSOR, OSA, 1K RTD 385, NO PROBE, POLY, ENCL	INFO	72.00	36.00
	KTOSA85-XP	TEMP SENSOR, OSA, 1K RTD 385, NO PROBE, POLY, ENCL	INFO	43.00	21.50
	KTOSA91	TEMP SENSOR, OSA, 1K RTD 375, NO PROBE, POLY, ENCL	INFO	40.00	20.00
	KTOSA91-QD1/4	TEMP SENSOR, OSA, 1K RTD 375, NO PROBE, POLY, ENCL	INFO	41.00	20.50
	KTOSA91-X25	TEMP SENSOR, OSA, 1K RTD 375, NO PROBE, POLY, ENCL	INFO	45.00	22.50
	KTOSA91-XC25	TEMP SENSOR, OSA, 1K RTD 375, NO PROBE, POLY, ENCL	INFO	57.00	28.50
	KTOSA91-XCP25	TEMP SENSOR, OSA, 1K RTD 375, NO PROBE, POLY, ENCL	INFO	54.00	27.00
	KTOSA91-XD	TEMP SENSOR, OSA, 1K RTD 375, NO PROBE, POLY, ENCL	INFO	54.00	27.00
	KTOSA91-XN	TEMP SENSOR, OSA, 1K RTD 375, NO PROBE, POLY, ENCL	INFO	44.00	22.00
	KTOSA91-XN 1 PT	TEMP SENSOR, OSA, 1K RTD 375, NO PROBE, POLY, ENCL	INFO	63.00	31.50
	KTOSA91-XN 2 PT	TEMP SENSOR, OSA, 1K RTD 375, NO PROBE, POLY, ENCL	INFO	68.00	34.00
	KTOSA91-XN 3 PT	TEMP SENSOR, OSA, 1K RTD 375, NO PROBE, POLY, ENCL	INFO	72.00	36.00
	KTOSA91-XP	TEMP SENSOR, OSA, 1K RTD 375, NO PROBE, POLY, ENCL	INFO	43.00	21.50

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Accessories

No accessories found

Features

Economical

Proven mounting designs

Three-year warranty

NEMA 3R enclosure

Specifications

Accuracy:

Thermistor:±0.50℉ (0.28℃)

RTD: ±0.60℉ (0.33℃),

Temperature Stability:

Thermistor:0.24°F (0.13°C) over five years

RTD:

Heat Dissipation:2.7 mW/°C (power needed to raise the temperature 1°C)

Sensor Type:

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

RTD:

Type 71, 81:100Ω Pt 385 Curve

Type 85:1000Ω Pt 385 Curve

Type 91: 1000Ω PT 375 Curve

Temperature Coefficient:

Thermistor:Negative temperature coefficient

RTD:Positive temperature coefficient

Temperature Range:

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

Enclosure Rating:

Mounting: Directly to wall

Wiring Terminations:8', 24 AWG gray wire leads, type 71 & 81 sensors have 18" leads

Probe: Seamless 304 stainless steel tube with 1.5" (3.8 cm) diameter weather shield

Weight: 0.25 lb (0.11 Kg) w/o options

Approvals: CE

Warranty: 3 years

Certifications

Download Additional Data

Catalog Page

KTOSA* Series

KTOSA* Series

KELE OSA Thermistor and RTD Sensors

Accessories

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