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KTO* Series

KELE OSA Thermistor and RTD Sensors

The Kele KTO* OSA Thermistor and RTD Sensors are designed to be cost-effective with accuracies of ±0.5°F (±0.28°C). Each uses metal enclosures and is constructed for easy installation with any building automation system (BAS). The thermistor is made of a very stable, pre-aged material that offers long-life reliability for HVAC control. The platinum RTD comes in 100Ω and 1000Ω versions. All sensors come with a three-year warranty.

Products

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Qty	Model	Description	In Stock	List Price	Internet Price
	KTO11K	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL		44.35	22.18
	KTO11K-X25	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	48.51	24.26
	KTO11K-XC25	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	60.97	30.48
	KTO11K-XCP25	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	58.43	29.22
	KTO11K-XD	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	54.06	27.03
	KTO11K-XG	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	49.24	24.62
	KTO11K-XLT	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	53.74	26.87
	KTO11K-XMT	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	44.42	22.21
	KTO11K-XN	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	47.62	23.81
	KTO11K-XN1	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	68.03	34.02
	KTO11K-XN2	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	72.41	36.20
	KTO11K-XN3	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	77.34	38.67
	KTO11K-XP	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	47.28	23.64
	KTO11K-XTB	TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 6.00" PROBE, METALLIC, ENCL	INFO	45.74	22.87
	KTO21	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	41.75	20.87
	KTO21-X25	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	45.85	22.93
	KTO21-XC25	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	58.31	29.16
	KTO21-XCP25	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	55.74	27.87
	KTO21-XD	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	49.83	24.92
	KTO21-XG	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	46.57	23.29
	KTO21-XLT	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	51.04	25.52
	KTO21-XMT	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	41.71	20.86
	KTO21-XN	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	44.91	22.46
	KTO21-XN1	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	64.97	32.48
	KTO21-XN2	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	69.41	34.71
	KTO21-XN3	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	74.33	37.17
	KTO21-XP	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	44.60	22.30
	KTO21-XTB	TEMP SENSOR, OSA, 2.252K, 6.00" PROBE, METALLIC, ENCL	INFO	43.07	21.54
	KTO22	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	41.75	20.87
	KTO22-X25	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	45.85	22.93
	KTO22-XC25	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	58.31	29.16
	KTO22-XCP25	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	55.74	27.87
	KTO22-XD	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	49.83	24.92
	KTO22-XG	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	46.54	23.27
	KTO22-XLT	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	51.08	25.54
	KTO22-XMT	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	41.71	20.86
	KTO22-XN	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	44.91	22.46
	KTO22-XN1	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	64.97	32.48
	KTO22-XN2	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	69.41	34.71
	KTO22-XN3	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	74.33	37.17
	KTO22-XP	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	44.60	22.30
	KTO22-XTB	TEMP SENSOR, OSA, 3K, 6.00" PROBE, METALLIC, ENCL	INFO	43.07	21.54
	KTO24	TEMP SENSOR, OSA, 10K TYPE II, 3" PROBE, METALL		41.76	20.88
	KTO24-X25	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	45.82	22.91
	KTO24-XC25	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	58.26	29.13
	KTO24-XCP25	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	55.74	27.87
	KTO24-XD	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	49.83	24.92
	KTO24-XG	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	46.54	23.27
	KTO24-XLT	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	51.08	25.54
	KTO24-XMT	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	41.75	20.87
	KTO24-XN	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	44.91	22.46
	KTO24-XN1	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	64.97	32.48
	KTO24-XN2	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	69.38	34.69
	KTO24-XN3	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	74.30	37.15
	KTO24-XP	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	44.60	22.30
	KTO24-XTB	TEMP SENSOR, OSA, 10K TYPE II, 6.00" PROBE, METALLIC, ENCL	INFO	43.07	21.54
	KTO27	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	41.75	20.87
	KTO27-X25	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	45.85	22.93
	KTO27-XC25	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	58.31	29.16
	KTO27-XCP25	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	55.74	27.87
	KTO27-XD	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	49.83	24.92
	KTO27-XG	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	46.54	23.27
	KTO27-XLT	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	51.04	25.52
	KTO27-XMT	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	41.71	20.86
	KTO27-XN	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	44.91	22.46
	KTO27-XN1	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	64.97	32.48
	KTO27-XN2	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	69.41	34.71
	KTO27-XN3	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	74.33	37.17
	KTO27-XP	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	44.60	22.30
	KTO27-XTB	TEMP SENSOR, OSA, 100K, 6.00" PROBE, METALLIC, ENCL	INFO	43.07	21.54
	KTO3	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL		41.76	20.88
	KTO3-X25	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	45.82	22.91
	KTO3-XC25	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	58.26	29.13
	KTO3-XCP25	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	55.74	27.87
	KTO3-XD	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	49.83	24.92
	KTO3-XG	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	46.54	23.27
	KTO3-XLT	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	51.08	25.54
	KTO3-XMT	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	41.75	20.87
	KTO3-XN	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	44.91	22.46
	KTO3-XN1	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	64.97	32.48
	KTO3-XN2	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	69.41	34.71
	KTO3-XN3	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	74.30	37.15
	KTO3-XP	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	44.57	22.29
	KTO3-XTB	TEMP SENSOR, OSA, 10K TYPE III, 6.00" PROBE, METALLIC, ENCL	INFO	43.07	21.54
	KTO42	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL		41.75	20.87
	KTO42-X25	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	45.82	22.91
	KTO42-XC25	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	58.31	29.16
	KTO42-XCP25	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	55.74	27.87
	KTO42-XD	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	49.83	24.92
	KTO42-XG	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	46.54	23.27
	KTO42-XLT	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	51.08	25.54
	KTO42-XMT	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	41.75	20.87
	KTO42-XN	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	44.91	22.46
	KTO42-XN1	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	64.42	32.21
	KTO42-XN2	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	69.41	34.71
	KTO42-XN3	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	74.33	37.17
	KTO42-XP	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	44.60	22.30
	KTO42-XTB	TEMP SENSOR, OSA, 20K, 6.00" PROBE, METALLIC, ENCL	INFO	43.07	21.54
	KTO81	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL		47.32	23.66
	KTO81-X25	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	51.45	25.72
	KTO81-XC25	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	63.91	31.96
	KTO81-XCP25	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	61.33	30.67
	KTO81-XD	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	57.36	28.68
	KTO81-XG	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	52.15	26.08
	KTO81-XLT	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	56.66	28.33
	KTO81-XMT	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	47.32	23.66
	KTO81-XN	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	50.52	25.26
	KTO81-XN1	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	68.94	34.47
	KTO81-XN2	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	73.51	36.75
	KTO81-XN3	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	77.77	38.89
	KTO81-XP	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	50.19	25.09
	KTO81-XTB	TEMP SENSOR, OSA, 100 RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	47.32	23.66
	KTO85	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	47.32	23.66
	KTO85-X25	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	51.45	25.72
	KTO85-XC25	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	63.91	31.96
	KTO85-XCP25	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	61.33	30.67
	KTO85-XD	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	57.36	28.68
	KTO85-XG	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	52.15	26.08
	KTO85-XLT	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	56.69	28.35
	KTO85-XMT	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	47.32	23.66
	KTO85-XN	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	50.52	25.26
	KTO85-XN1	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	69.56	34.78
	KTO85-XN2	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	74.14	37.07
	KTO85-XN3	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	79.12	39.56
	KTO85-XP	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	50.19	25.09
	KTO85-XTB	TEMP SENSOR, OSA, 1K RTD 385, 6.00" PROBE, METALLIC, ENCL	INFO	47.32	23.66
	KTO91	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	47.32	23.66
	KTO91-X25	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	51.45	25.72
	KTO91-XC25	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	63.91	31.96
	KTO91-XCP25	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	61.33	30.67
	KTO91-XD	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	57.39	28.69
	KTO91-XG	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	52.15	26.08
	KTO91-XLT	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	56.66	28.33
	KTO91-XMT	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	47.32	23.66
	KTO91-XN	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	50.52	25.26
	KTO91-XN1	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	69.56	34.78
	KTO91-XN2	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	74.14	37.07
	KTO91-XN3	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	77.77	38.89
	KTO91-XP	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	50.19	25.09
	KTO91-XTB	TEMP SENSOR, OSA, 1K RTD 375, 6.00" PROBE, METALLIC, ENCL	INFO	47.32	23.66

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Accessories

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Features

Metal enclosures with plastic weather shield

Three-year warranty

±0.5°F (±0.28°C) accuracy

Specifications

Accuracy:

Thermistor:±0.50℉ (0.28℃)

RTD:±0.60℉ (0.33℃)

Sensor Type:

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

RTD:

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/°C (power needed to raise the temperature 1°C)

Enclosure Rating:NEMA 1, Metal, weather resistant

Mounting:3/4" conduit fittings

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

Weight:0.75 lb (0.3 Kg) with no options

Approvals:CE

Warranty:3 years

Certifications

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Catalog Page

KTO* Series

KTO* Series

KELE OSA Thermistor and RTD Sensors

Accessories

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