Glass Stem Thermometers | McMaster-Carr

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62 Products

Adjustable-Angle Quick-Response Threaded Thermometers

Obtain the best viewing angle and a fast response time with these pivoting thermometers filled with mercury-free fluid that registers temperature changes more quickly than dial thermometer stems. The case rotates 180° and the stem pivots 180° to support angled mounting. Tighten the set screws to secure the desired angle.

Adjustable


With Thermowell	Without Thermowell

Thermometers with thermowell are protected from shock and pressure in tanks and pipelines.

Thermometers with 316 Stainless Steel Thermowell—316 stainless steel thermowells are more corrosion resistant than brass.

				Stem										Material			Fluid
	Temp. Range	Graduations	Accuracy	Lg.	Dia.	Mount Type	Pipe Size	Thread Type	Thread Size	Scale Ht.	Gender	Max. Pressure @ Temp.	Overall Ht.	Housing	Stem	Window	Material	Color		Each







				Thermometers

				-40° F to 110° F	2° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T741	000000


				-40° F to 110° F	2° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T831	00000
				-40° F to 110° F	2° F	±2° F	6"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T841	00000
				0° F to 160° F	2° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T742	00000
				0° F to 160° F	2° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T832	00000
				0° F to 160° F	2° F	±2° F	6"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T842	00000
				20° F to 180° F	2° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T743	00000
				20° F to 180° F	2° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T833	00000
				20° F to 180° F	2° F	±2° F	6"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T843	00000
				30° F to 240° F	2° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T744	00000
				30° F to 240° F	2° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T834	00000


				30° F to 240° F	2° F	±2° F	6"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T844	00000
				30° F to 300° F	2° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T835	00000
				30° F to 300° F	2° F	±2° F	6"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T845	00000
				30° F to 300° F	5° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T745	00000
				50° F to 400° F	5° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T746	00000
				50° F to 400° F	5° F	±2° F	3 1/2"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T836	00000
				50° F to 400° F	5° F	±2° F	6"	7/16"	Threaded	—	UNEF	1 1/4"-18	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T846	00000




						Thermometers with Brass Thermowell

						-40° F to 110° F	2° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T761	00000


						-40° F to 110° F	2° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T851	00000
						-40° F to 110° F	2° F	±2° F	6"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T861	00000
						0° F to 160° F	2° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T762	00000
						0° F to 160° F	2° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T852	00000
						0° F to 160° F	2° F	±2° F	6"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T862	00000
						20° F to 180° F	2° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T763	00000
						20° F to 180° F	2° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T853	00000
						20° F to 180° F	2° F	±2° F	6"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T863	00000
						30° F to 240° F	2° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T764	00000
						30° F to 240° F	2° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T854	00000


						30° F to 240° F	2° F	±2° F	6"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T864	00000
						30° F to 300° F	2° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T855	00000
						30° F to 300° F	2° F	±2° F	6"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T865	00000
						30° F to 300° F	5° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T765	00000
						50° F to 400° F	5° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T766	00000
						50° F to 400° F	5° F	±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T856	00000
						50° F to 400° F	5° F	±2° F	6"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T866	00000




								Thermometers with 316 Stainless Steel Thermowell

-40° F to 110° F	2° F							±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T781	000000


-40° F to 110° F	2° F							±2° F	3 1/2"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T871	000000
-40° F to 110° F	2° F	±2° F						6"	7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T881	000000
0° F to 160° F	2° F	±2° F	3 1/2"					7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T782	000000
0° F to 160° F	2° F	±2° F	3 1/2"					7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T872	000000
0° F to 160° F	2° F	±2° F	6"					7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T882	000000
20° F to 180° F	2° F	±2° F	3 1/2"					7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T783	000000
20° F to 180° F	2° F	±2° F	3 1/2"					7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T873	000000
20° F to 180° F	2° F	±2° F	6"					7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T883	000000
30° F to 240° F	2° F	±2° F	3 1/2"					7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T784	000000
30° F to 240° F	2° F	±2° F	3 1/2"					7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T874	000000


30° F to 240° F	2° F	±2° F	6"					7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T884	000000
30° F to 300° F	2° F	±2° F	3 1/2"					7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T875	000000
30° F to 300° F	2° F	±2° F	6"					7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T885	000000
30° F to 300° F	5° F	±2° F	3 1/2"					7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T785	000000
50° F to 400° F	5° F	±2° F	3 1/2"					7/16"	Threaded	3/4	NPT	—	7"	Male	Not Rated	15 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T786	000000
50° F to 400° F	5° F	±2° F	3 1/2"					7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	17 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T876	000000
50° F to 400° F	5° F	±2° F	6"					7/16"	Threaded	3/4	NPT	—	9"	Male	Not Rated	20 3/4"	Aluminum	Zinc	Acrylic Plastic	Kerosene	Blue	3938T886	000000

Heavy Duty Quick-Response Threaded Thermometers with Thermowell

These thermometers are filled with mercury-free fluid that responds to temperature changes more quickly than dial thermometer stems.

Fixed Back Connection

Image of Product. Side1 orientation. Contains Annotated. Thermometers. Heavy Duty Quick-Response Threaded Thermometers with Thermowell, Fixed Back Connection.

Thermometers with Brass Thermowell—The detachable brass thermowell covers the thermometer stem to protect it from vibration, corrosion, shock, and pressure.

			Stem									Material			Fluid
Temp. Range	Graduations	Accuracy	Lg.	Dia.	Mount Type	Pipe Size	Thread Type	Scale Ht.	Gender	Max. Pressure @ Temp.	Overall Ht.	Housing	Stem	Window	Material	Color		Each







			Thermometers with Brass Thermowell

			-40° F to 110° F/-40° C to 40° C	2° F/2° C	±2° F	2", 2 3/4"	3/8"	Threaded	1/2, 3/4	NPT	5"	Male	Not Rated	7"	Plastic	Brass	Glass	Kerosene	Red	7671K21	000000


			20° F to 180° F/-6° C to 80° C	2° F/1° C	±2° F	2", 2 3/4"	3/8"	Threaded	1/2, 3/4	NPT	5"	Male	Not Rated	7"	Plastic	Brass	Glass	Kerosene	Red	7671K23	00000
			30° F to 240° F/0° C to 114° C	2° F/2° C	±2° F	2", 2 3/4"	3/8"	Threaded	1/2, 3/4	NPT	5"	Male	Not Rated	7"	Plastic	Brass	Glass	Kerosene	Red	7671K22	00000
			50° F to 400° F/10° C to 205° C	2° F/5° C	±2° F	2", 2 3/4"	3/8"	Threaded	1/2, 3/4	NPT	5"	Male	Not Rated	7"	Plastic	Brass	Glass	Kerosene	Red	7671K24	00000

Fixed Bottom Connection

Image of Product. Front orientation. Contains Annotated. Thermometers. Heavy Duty Quick-Response Threaded Thermometers with Thermowell, Fixed Bottom Connection.

Thermometers with Brass Thermowell—The detachable brass thermowell covers the thermometer stem to protect it from vibration, corrosion, shock, and pressure.

			Stem									Material			Fluid
Temp. Range	Graduations	Accuracy	Lg.	Dia.	Mount Type	Pipe Size	Thread Type	Scale Ht.	Gender	Max. Pressure @ Temp.	Overall Ht.	Housing	Stem	Window	Material	Color		Each







			Thermometers with Brass Thermowell

			-40° F to 110° F/-40° C to 40° C	2° F/2° C	±2° F	2", 2 3/4"	3/8"	Threaded	1/2, 3/4	NPT	5"	Male	Not Rated	10"	Plastic	Brass	Glass	Kerosene	Red	7671K11	000000


			20° F to 180° F/-6° C to 80° C	2° F/1° C	±2° F	2", 2 3/4"	3/8"	Threaded	1/2, 3/4	NPT	5"	Male	Not Rated	10"	Plastic	Brass	Glass	Kerosene	Red	7671K13	00000
			30° F to 240° F/0° C to 114° C	2° F/2° C	±2° F	2", 2 3/4"	3/8"	Threaded	1/2, 3/4	NPT	5"	Male	Not Rated	10"	Plastic	Brass	Glass	Kerosene	Red	7671K12	00000
			50° F to 400° F/10° C to 205° C	2° F/5° C	±2° F	2", 2 3/4"	3/8"	Threaded	1/2, 3/4	NPT	5"	Male	Not Rated	10"	Plastic	Brass	Glass	Kerosene	Red	7671K14	00000