Standard Liquid-Level Gauges and Transmitters

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29 Products

Noncontact Liquid-Level Transmitters

Use these transmitters to measure the levels of corrosive, dirty, or sticky liquids without coming into contact with them. They’ll continuously send measurements, so you can monitor status and manage components in your system. Mount at the top of your tank. There should be no tank walls, agitators, or other objects in the path of the transmitter.

Ultrasonic


Transmitter	Button Interface

Ultrasonic transmitters use high-frequency sound waves and are often used to measure water, wastewater, chemicals, and oil but won’t work on vapors, foam, and other media that’s difficult to measure. The included fob allows you to connect your transmitter to your computer, where you'll download software that guides you through the setup process to make sure you get accurate readings.

Digital Switch Output—Transmitters with a switch can also signal your controller to turn components on or off when they reach a set level.

NEMA 6P Enclosure Rating—NEMA 6P rated transmitters protect against dust, weather, washdowns, corrosion, and submersion. IP68 rated transmitters seal out dust and water from temporary submersion.

Button Interface—Ultrasonic transmitters with a button interface can be set up and calibrated without the fob.

				Overall
	Pipe Size	For Liquid Level, ft.	Max. Pressure @ Temp.	Dia.	Lg.	Temp. Range, ° F	Cable Lg., ft.	Input Voltage, V DC	Electrical Connection	Enclosure Rating	Includes	Features		Each
NPT Male Pipe Connection







				0-5V DC, 0V-10V DC Signal

				1	0 to 4	30 psi @ 70° F	2"	3 1/4"	-30 to 140	4	12 to 24	Wire Leads	NEMA 6P	USB Configuration Fob	—	3407K23	0000000




						4-20 mA Signal

						2	0 to 19 1/2	30 psi @ 70° F	4 3/8"	7"	-30 to 140	—	14 to 28	Quick-Disconnect Terminal	IP68, NEMA 6P	USB Configuration Fob	Button Interface	3407K17	000000


						3	0 to 39	30 psi @ 70° F	4 5/8"	7"	-30 to 140	—	14 to 28	Quick-Disconnect Terminal	IP68, NEMA 6P	USB Configuration Fob	Button Interface	3407K18	00000000




								4 mA to 20 mA Signal with Switch

								1	0 to 4	30 psi @ 70° F	2"	3 1/4"	-30 to 140	4	24	Wire Leads	NEMA 6P	USB Configuration Fob	—	3407K11	000000


								1	0 to 9 3/4	30 psi @ 70° F	3"	4 3/4"	-30 to 140	4	24	Wire Leads	NEMA 6P	USB Configuration Fob	—	3407K14	000000
								2	1 1/2 to 4 3/4	30 psi @ 70° F	2 3/4"	4"	-30 to 140	4	14 to 28	Wire Leads	IP68, NEMA 6P	USB Configuration Fob	—	3407K15	000000
								2	4 to 9 3/4	30 psi @ 70° F	2 3/4"	4"	-30 to 140	4	14 to 28	Wire Leads	IP68, NEMA 6P	USB Configuration Fob	—	3407K16	000000

Replacement USB Adapters for Ultrasonic Transmitters

Electrical Connection	Component		Each
USB-A	USB Adapter	3407K19	000000

Radar

Radar transmitters use high-frequency electromagnetic waves and are best for liquids that are tricky to measure because they work even if there’s condensation, foam, or other difficult conditions. They also measure the level of liquids with solids and small solids. In addition to the traditional 4-20 mA output, these transmitters can also send measurements to your Android smartphone or tablet using Bluetooth. There’s an app you can use to set up your transmitter and calibrate it for your system.

				Overall
	Pipe Size	For Liquid Level, ft.	Max. Pressure @ Temp.	Dia.	Lg.	Temp. Range, ° F	Cable Lg., ft.	Input Voltage, V DC	Electrical Connection	Enclosure Rating	Data Connection	Communication Protocol		Each
NPT Male Pipe Connection







				4-20 mA Signal

				1 1/2	0 to 45	40 psi @ 70° F	4"	4 1/4"	-40 to 175	15	18 to 36	Wire Leads	IP68	Bluetooth	HART	5354K21	000000000

Hazardous-Location Submersible Liquid-Level Transmitters


For Liquids	For Liquids with Solids

FM and C-FM approved, these transmitters safely measure liquid levels where explosive gas or dust may be present. Set them at the bottom of your tank in applications that make traditional mounting difficult. They sense liquid levels by measuring the pressure from the weight of the liquid above them. All continuously send measurements, so you can monitor status and manage components in your system. Also known as level loggers, level sensors, and pressure transducers.

For Liquids with Solids—Transmitters for liquids with solids have an unobstructed sensing element that resists clogging and sludge buildup in water with particulate and sewage.

				Overall
	For Pressure	Accuracy	Max. Pressure @ Temp.	Dia.	Lg.	Temp. Range, ° F	Cable Lg., ft.	Input Voltage, V DC	For Container Type	Electrical Connection	Hazardous Location Rating	Enclosure Rating		Each
4 mA to 20 mA Output Current







				For Liquids

				0 psi to 1 psi / 0 to 3 ft. H₂O	±0.25%	10 psi @ 70° F	1"	6 3/4"	-10 to 175	40	10 to 35	Open Tank	Wire Leads	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2	NEMA 6P	3450K51	0000000


				0 to 2 psi / 0 to 5 ft. H₂O	±0.25%	20 psi @ 70° F	1"	6 3/4"	-10 to 175	40	10 to 35	Open Tank	Wire Leads	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2	NEMA 6P	3450K53	000000
				0 to 4 psi / 0 to 10 ft. H₂O	±0.25%	40 psi @ 70° F	1"	6 3/4"	-10 to 175	40	10 to 35	Open Tank	Wire Leads	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2	NEMA 6P	3450K55	000000
				0 to 6 psi / 0 to 15 ft. H₂O	±0.25%	60 psi @ 70° F	1"	6 3/4"	-10 to 175	40	10 to 35	Open Tank	Wire Leads	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2	NEMA 6P	3450K57	000000
				0 to 13 psi / 0 to 30 ft. H₂O	±0.25%	125 psi @ 70° F	1"	6 3/4"	-10 to 175	40	10 to 35	Open Tank	Wire Leads	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2	NEMA 6P	3450K59	000000




						For Liquids with Solids

						0 psi to 1 psi / 0 to 3 ft. H₂O	±0.25%	10 psi @ 70° F	1"	5 3/4"	-10 to 175	40	10 to 35	Open Tank	Wire Leads	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2	NEMA 6P	3450K31	00000000


						0 to 2 psi / 0 to 5 ft. H₂O	±0.25%	20 psi @ 70° F	1"	5 3/4"	-10 to 175	40	10 to 35	Open Tank	Wire Leads	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2	NEMA 6P	3450K33	00000000
						0 to 4 psi / 0 to 10 ft. H₂O	±0.25%	40 psi @ 70° F	1"	5 3/4"	-10 to 175	40	10 to 35	Open Tank	Wire Leads	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2	NEMA 6P	3450K35	00000000
						0 to 6 psi / 0 to 15 ft. H₂O	±0.25%	60 psi @ 70° F	1"	5 3/4"	-10 to 175	40	10 to 35	Open Tank	Wire Leads	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2	NEMA 6P	3450K37	00000000
						0 to 13 psi / 0 to 30 ft. H₂O	±0.25%	125 psi @ 70° F	1"	5 3/4"	-10 to 175	40	10 to 35	Open Tank	Wire Leads	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2	NEMA 6P	3450K39	00000000

Float Liquid-Level Transmitters

Easy to set up and use, these transmitters measure liquid levels using a standard float gauge. They continuously send measurements to a receiving device, such as a programmable logic controller, so you can monitor status and manage components in your system.

		Pipe				Overall
	For Tank Dp.	Size	Type	Gender	Max. Pressure @ Temp.	Dia.	Lg.	Temp. Range, ° F	Cable Lg., ft.	Input Voltage, V DC	For Container Type	Electrical Connection	Certification		Each
4 mA to 20 mA Output Current







				Polypropylene Float

				19"	1 1/2	NPT	Male	100 psi @ 70° F	1 7/8"	21"	-40 to 220	2	12 to 30	Closed Tank, Open Tank	Wire Leads	C-UL Recognized Component, CE Marked, UL Recognized Component	3966N11	0000000




						316 Stainless Steel Float

						24"	2	NPT	Male	200 psi @ 70° F	2 3/8"	27"	-40 to 220	2	12 to 30	Closed Tank, Open Tank	Wire Leads	C-UL Recognized Component, CE Marked, UL Recognized Component	3966N12	000000

Submersible Liquid-Level Transmitters


For Liquids	For Liquids with Solids

Best for measuring liquid levels in applications where traditional mounting is difficult, these transmitters sit at the bottom of your tank. They sense liquid levels by measuring the pressure from the weight of the liquid above them. These transmitters continuously send measurements, so you can monitor the status and manage components in your system. Also known as level loggers, level sensors, and pressure transducers.

For Liquids with Solids—Transmitters for liquids with solids have sink weights that keep the transmitter in place in applications with moving solids or agitated liquids.

				Overall
	For Pressure	Accuracy	Max. Pressure @ Temp.	Dia.	Lg.	Temp. Range, ° F	Cable Lg., ft.	Input Voltage, V DC	For Container Type	Electrical Connection	Enclosure Rating		Each
4 mA to 20 mA Output Current







				For Liquids

				0 to 5 psi / 0 to 11.5 ft. H₂O	±0.5%	7 psi @ 70° F	1"	5 5/8"	32 to 140	40	12 to 36	Closed Tank, Open Tank	Wire Leads	IP68	3962N11	0000000


				0 to 10 psi / 0 to 23 ft. H₂O	±0.5%	15 psi @ 70° F	1"	5 5/8"	32 to 140	40	12 to 36	Closed Tank, Open Tank	Wire Leads	IP68	3962N12	000000
				0 to 15 psi / 0 to 34 ft. H₂O	±0.5%	22 psi @ 70° F	1"	5 5/8"	32 to 140	60	12 to 36	Closed Tank, Open Tank	Wire Leads	IP68	3962N13	000000
				0 to 20 psi / 0 to 46 ft. H₂O	±0.5%	30 psi @ 70° F	1"	5 5/8"	32 to 140	60	12 to 36	Closed Tank, Open Tank	Wire Leads	IP68	3962N14	000000




						For Liquids with Solids

						0 to 5 psi / 0 to 11.5 ft. H₂O	±0.5%	7 psi @ 70° F	3 1/4"	5 1/4"	32 to 140	40	12 to 36	Closed Tank, Open Tank	Wire Leads	IP68	3962N15	000000


						0 to 10 psi / 0 to 23 ft. H₂O	±0.5%	15 psi @ 70° F	3 1/4"	5 1/4"	32 to 140	40	12 to 36	Closed Tank, Open Tank	Wire Leads	IP68	3962N16	000000
						0 to 15 psi / 0 to 34 ft. H₂O	±0.5%	22 psi @ 70° F	3 1/4"	5 1/4"	32 to 140	60	12 to 36	Closed Tank, Open Tank	Wire Leads	IP68	3962N17	000000
						0 to 20 psi / 0 to 46 ft. H₂O	±0.5%	30 psi @ 70° F	3 1/4"	5 1/4"	32 to 140	60	12 to 36	Closed Tank, Open Tank	Wire Leads	IP68	3962N18	000000