MADISON Liquid Level Switches

Point-level float switches featuring reed switch technology to externally control an alarm or an ON / OFF switch and field-adjustable stem lengths (on selected models) for using just one sensor in multiple drums. Available in close-on-rise & open-on-rise configurations

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Madison liquid level switches regulate and monitor the oil or water level in a container. These units float on the top of the liquid surface and notify users when the liquid surface goes up or down. They are used in pumps, valves or alarms.
MADISON -

Plastic Single-Point Liquid Level Switches

StyleModelBody MaterialConduit SizeContact FormElectrical ConnectionsFloat Dia.Float MaterialHeightMax. PressurePrice (inc. VAT)
AM5917316 Stainless Steel1/4"SPST18 ga.PTFE Coated 24" Leads2.13"316 SS3.38"200 psi£86.68
BM5900316 Stainless Steel1/2" x 1"SPDT22 ga. PTFE Coated 24" Leads0.63"316 SS-300 psi£182.43
CM5910316 Stainless Steel1/4" x 1/2"SPDT22 ga. PTFE Coated 24" Leads0.63"316 SS-300 psi£183.88
DM5970316 Stainless Steel1/2"SPST22 ga. PTFE Coated 24" Leads1"316 SS-100 psi£116.68
EM4010Brass3/8-20"SPST22 ga. PTFE Coated 24" Leads1"Buna N2.96"100 psi£62.37
FM4300Brass1/4"SPST22 ga. MTW Coated 24" Leads1.25"Buna N3.38"150 psi£55.26
GM9000Kynar1/8"SPST22 ga. PTFE Coated 24" Leads1"Kynar2.25"15 psi£26.11
HM9700Kynar1/2" x 1/2"SPST22 ga. PTFE Coated 24" Leads0.65"Kynar-100 psi£32.69
IM9705Kynar1/2" x 1"SPST22 ga. PTFE Coated 24" Leads0.65"Kynar-100 psi£87.15
JM7000PBT1/8"SPST22 ga. PTFE Coated 24" Leads1"Buna N2.25"150 psi£18.65
KM7790PBT5/8-11"SPST22 ga. PTFE Coated 24" Leads0.65"PBT-100 psi£26.87
LM7750PBT1/2"SPST22 ga. PTFE Coated 24" Leads0.65"PBT-100 psi£26.46
MM7740PBT3/4-16" x 7/8-14"SPST22 ga. PTFE Coated 24" Leads0.65"PBT-100 psi£25.88
NM7725PBT1/2"SPST22 ga. MTW Coated 24" Leads0.65"PBT-100 psi£24.73
OM7700PBT1/2" x 1/2"SPST22 ga. PTFE Coated 24" Leads0.65"PBT-100 psi£18.64
PM8750Polypropylene1/2"SPST22 ga. MTW Coated 24" Leads1"Polypropylene-100 psi£16.60
QM8000Polypropylene1/8"SPST22 ga. MTW Coated 24" Leads1"Polypropylene2.25"100 psi£14.79
RM8000BPolypropylene3/8-16"SPST22 ga. MTW Coated 24" Leads1"Polypropylene-100 psi£39.46
SM8700Polypropylene1/2" x 1/2"SPST22 ga. MTW Coated 24" Leads0.65"Polypropylene-100 psi£14.60
TM8790Polypropylene5/8-11"SPST22 ga. MTW Coated 24" Leads1"Polypropylene-100 psi£16.62
UM8800Polypropylene1/4"SPST22 ga. MTW Coated 24" Leads1.5"Polypropylene3.41"100 psi£73.50
VMSB8800Polypropylene-SPST1.8m PP Cable1.5"Polypropylene3.89"100 psi£132.30
WM8710Polypropylene1/4" x 1/2"SPST22 ga. MTW 24"1"Polypropylene-100 psi£46.80
XM8705Polypropylene1/2" x 1"SPST22 ga. MTW Coated 24" Leads1"Polypropylene-100 psi£41.12
YM8700-CPolypropylene1/2"SPST22 ga. MTW Coated 24" Leads0.5"Polypropylene-100 psi£18.02
MADISON -

Open On Rise Liquid Level Switch

StyleModelBody MaterialConduit SizeElectrical ConnectionsFloat Dia.Float MaterialHeightMax. PressureMountingPrice (inc. VAT)
AM3827-3316 Stainless Steel1/8"22 ga. PTFE Coated 24" Leads1.54"316 SS-50 psiHorizontal£154.05
BM3827-2316 Stainless Steel1/2"22 ga. PTFE Coated 24" Leads1.54"316 SS-50 psiHorizontal£132.06
CM3782Brass/PBT-20 ft. 22 AWG, HALAR Jacketed 2-conductor Cable With Watertight Connector1"Buna N4.06"50 psiVertical£140.58
DM3326Polypropylene3/8-16"22 ga. PTFE Coated 24" Leads0.58"Polypropylene1.85"50 psiVertical£26.35
EM3326-NPTPolypropylene1/8"22 ga. PTFE Coated 24" Leads0.58"Polypropylene1.68"50 psiVertical£42.34
FM8800-PRPolypropylene1/4"22 ga. MTW Coated 24" Leads1.5"Polypropylene3.38"100 psiVertical£122.69
GM8000-CPolypropylene and PVC3/4"22 ga. MTW Coated 24" Leads0.875"Polypropylene2.25"50 psiVertical£28.64
HM4035Stainless Steel1/8"22 ga. PTFE Coated 24" Leads0.78"Polypropylene1.44"100 psiVertical£52.62
MADISON -

Selectable Multi-level Liquid Level Switch

StyleModelBody MaterialElectrical ConnectionsFloat Dia.Float MaterialMax. PressureOperating Temp. RangeStem MaterialWidthPrice (inc. VAT)
AML5555316 Stainless Steel22 ga. PTFE2.125"316 SS200 psi392 Degrees F Max.316 SS43.19"£608.70
BML4444Polypropylene22 ga. PTFE1.25"Buna N150 psi221 Degrees F Max.Brass18"£387.68
CML8888Polypropylene23 ga. PTFE1.5"Polypropylene100 psi221 Degrees F Max.Polypropylene-£357.17
MADISON -

Open On Rise Multi-level Liquid Level Switch

StyleModelBody MaterialConduit SizeFloat Dia.Float MaterialMax. PressureOperating Temp. RangeOverall LengthStem LengthPrice (inc. VAT)
AM5605316 Stainless Steel1/2"2.13"316 SS200 psi392 Degrees F Max.8.25"7.25"£246.80
BM8085Polypropylene1/4"1"Polypropylene100 psi221 Degrees F Max.7.5"6.75"£91.30
MADISON -

Selectable Drum Liquid Level Switch

StyleModelBody MaterialFloat MaterialMax. PressureOperating Temp. RangeStem MaterialPrice (inc. VAT)
AM4169-3316 Stainless Steel316 SS250 psi302 Degrees F Max.316 SS£334.66
BM4168-3BrassBuna N150 psi221 Degrees F Max.Brass£221.47
MADISON -

Close On Rise Liquid Level Switch

StyleModelBody MaterialConduit SizeElectrical ConnectionsFloat Dia.Float MaterialHeightMax. PressureMountingPrice (inc. VAT)
AM3827-2NO316 Stainless Steel1/2"22 ga. PTFE Coated 24" Leads1.54"316 SS-50 psiHorizontal£132.58
AM3827-3NO316 Stainless Steel1/8"22 ga. PTFE Coated 24" Leads1.54"316 SS-50 psiHorizontal£148.25
BM3326-NOPolypropylene3/8-16"22 ga. PTFE Coated 24" Leads0.58"Polypropylene1.85"50 psiVertical£28.29
CM3326-NPT-NOPolypropylene1/8"22 ga. PTFE Coated 24" Leads0.58"Polypropylene1.68"50 psiVertical£41.43
DM8000-NOPolypropylene1/8"22 ga. MTW Coated 24" Leads1"Polypropylene2.25"100 psiVertical£19.16
MADISON -

Close On Rise Drum Liquid Level Switch

StyleModelBody MaterialFloat MaterialMax. PressureOperating Temp. RangeStem MaterialPrice (inc. VAT)
AM4169-1316 Stainless Steel316 SS250 psi302 Degrees F Max.316 SS£197.13
BM4168-1BrassBuna N150 psi221 Degrees F Max.Brass£152.10
MADISON -

Open On Rise Ultra Low Level Liquid Switch

StyleModelBody MaterialElectrical ConnectionsFloat MaterialStem MaterialPrice (inc. VAT)
AM4400-ULL-NC316 Stainless Steel22 ga. PTFE Coated 24" LeadsBuna N316 SS£85.49
BM8020-ULL-NC316 Stainless Steel22 ga. PTFE Coated 24" LeadsPolypropylene316 SS£65.32
CM9000-ULL-NCKynar22 ga. PTFE Coated 24" LeadsKynarKynar£62.87
DM8000-ULL-NCPolypropylene22 ga. MTW Coated 24" LeadsPolypropylenePolypropylene£58.55
MADISON -

Open On Rise Drum Liquid Level Switch

StyleModelBody MaterialFloat MaterialMax. PressureOperating Temp. RangeStem MaterialPrice (inc. VAT)
AM4169-2316 Stainless Steel316 SS250 psi302 Degrees F Max.316 SS£235.55
BM4168-2BrassBuna N150 psi221 Degrees F Max.Brass£186.34
MADISON -

Close On Rise Ultra Low Level Liquid Switch

StyleModelBody MaterialElectrical ConnectionsFloat MaterialStem MaterialPrice (inc. VAT)
AM4400-ULL-NO316 Stainless Steel22 ga. PTFE Coated 24" LeadsBuna N316 SS£71.41
BM8020-ULL-NO316 Stainless Steel22 ga. PTFE Coated 24" LeadsPolypropylene316 SS£65.54
CM4400-PBT-ULL-NO316 Stainless Steel22 ga. PTFE Coated 24" LeadsPBT316 SS£57.18
DM4500-ULL-NOBrass22 ga. PTFE Coated 24" LeadsBuna NBrass£76.44
EM9000-ULL-NOKynar22 ga. PTFE Coated 24" LeadsKynarKynar£76.55
FM7000-ULL-NOPBT22 ga. PTFE Coated 24" LeadsBuna NPBT£74.49
FM7000-PBT-ULL-NOPBT22 ga. PTFE Coated 24" LeadsPBTPBT£58.58
GM8000-ULL-NOPolypropylene22 ga. MTW Coated 24" LeadsPolypropylenePolypropylene£55.86
MADISON -

Stainless Steel Single-Point Liquid Level Switches

StyleModelBody MaterialConduit SizeElectrical ConnectionsFloat Dia.Float MaterialHeightMax. PressureMountingPrice (inc. VAT)
AM4190-BU304 Stainless Steel1"22 ga. PTFE Coated 24" Leads0.92"Buna N-100 psiHorizontal£387.86
BM4190-HP304 Stainless Steel1"22 ga. PTFE Coated 24" Leads2.04"304 SS-900 psiHorizontal£311.57
CM4190304 Stainless Steel1"22 ga. PTFE Coated 24" Leads1"304 SS-150 psiHorizontal£371.52
DMS5010316 Stainless Steel3/8-24"22 ga. PTFE Coated 24" Leads1.13"316 SS1.61"300 psiHorizontal£96.77
EM5920316 Stainless Steel1/2" x 1/2"22 ga. PTFE Coated 24" Leads0.13"316 SS-300 psiHorizontal£160.01
FMS5917316 Stainless Steel1/4"18 ga.PTFE Coated 24" Leads2.13"316 SS3.38"200 psiVertical£110.29
GMSB5600316 Stainless Steel-1.8m PTFE Cable2.13"316 SS3.64"85 psiVertical£226.25
HM5000316 Stainless Steel1/8"22 ga. PTFE Coated 24" Leads1.13"316 SS2.25"300 psiVertical£70.27
IM5010316 Stainless Steel3/8-24"22 ga. PTFE Coated 24" Leads1.13"316 SS2.96"300 psiHorizontal£67.68
JM5600-PR316 Stainless Steel1/4"22 ga. PTFE Coated 24" Leads2"316 SS3.52"500 psiVertical£119.62
KMS9000Kynar1/8"22 ga. PTFE Coated 24" Leads1"Kynar2.25"15 psiVertical£44.45
LMS7000PBT1/8"22 ga. PTFE Coated 24" Leads1"Buna N2.25"150 psiVertical£29.33
MMS8000Polypropylene1/8"22 ga. PTFE Coated 24" Leads1"Polypropylene2.25"100 psiVertical£28.49
NMS8800Polypropylene1/4"22 ga. MTW Coated 24" Leads1.5"Polypropylene3.38"100 psiVertical£79.24
MADISON -

Adjustable-Level Liquid Level Switches

StyleModelBody MaterialFloat Dia.Float MaterialHeightMax. PressureOperating Temp. RangeOverall LengthStem LengthPrice (inc. VAT)
AM5602-7808-1316 Stainless Steel2.13"316 SS12"200 psi392 Degrees F Max.12"10.5"£367.78
BM5602-7808-6316 Stainless Steel2.13"316 SS72"200 psi392 Degrees F Max.72"70.5"£314.07
RFQ
CM4302-7807-6Brass1.25"Buna N72"150 psi221 Degrees F Max.72"70.5"£180.20
RFQ
MADISON -

Selectable Liquid Level Switch

StyleModelBody MaterialConduit SizeElectrical ConnectionsFloat Dia.Float MaterialHeightMax. PressureMountingPrice (inc. VAT)
AM4065304 Stainless Steel1.5"22 ga. MTW 24"1.5"304 SS10.25"100 psiHorizontal£706.91
BM5600316 Stainless Steel1/4"22 ga. PTFE Coated 24" Leads2.13"316 SS3.52"200 psiVertical£74.92
CM3326-SMPolypropylene3/8-16"PTFE Jacketed Wire Leads0.78"Polypropylene1.85"50 psiHorizontal£26.71
DM8790-14/4184Polypropylene5/8-11"22 ga. MTW Coated 24" Leads1"Polypropylene-100 psiHorizontal£32.33
EM3727Stainless Steel1/2" x 1/4"22 ga. PTFE Coated 24" Leads0.65"Stainless Steel-300 psiHorizontal£153.16
FMS8010Stainless Steel1/8"22 ga. PTFE Coated 24" Leads1"Polypropylene2.96"100 psiHorizontal£70.93
MADISON -

Single Point Level Switch, 3.5 Inch Float Dia., 100 Watt, SPST, 240V AC, 0.40A

ModelItemPrice (inc. VAT)
M5602-13331CM7MYT£510.59
MADISON -

Single Point Level Switch, 0.75 Inch Float Dia., 30 Watt, SPST, 240V AC, 0.40A

ModelItemPrice (inc. VAT)
M8000-75CM7MYZ£37.03
MADISON -

Single Point Level Switch, 1.5 Inch Float Dia., 60 Watt, SPST, 240V AC, 0.40A

ModelItemPrice (inc. VAT)
M8600CM7MZA£46.75
See Details
MADISON -

Single Point Level Switch, Miniature, 1 Inch Float Dia., 30 Watt, SPST, 120V AC, 0.28A

ModelItemPrice (inc. VAT)
M4500CM7MYP£35.79
See Details
MADISON -

Single Point Level Switch, 2.05 Inch Float Dia., 100 Watt, SPST, 240V AC, 0.40A

ModelItemPrice (inc. VAT)
M5601-HPCM7MYR£70.85
See Details
MADISON -

Side Mount Level Switch, 1/4 Inch Spade Terminals, 1/2 Inch NPT Mount, 30 Watt, SPST, 100 PSI

ModelItemPrice (inc. VAT)
M8725CM7MZB£25.56
See Details
MADISON -

Single Point Level Switch, 2.13 Inch Float Dia., 100 Watt, SPST, 240V AC, 0.40A

ModelItemPrice (inc. VAT)
M5601CM7MYQ£78.15
See Details
MADISON -

Single Point Level Switch, 1.25 Inch Float Dia., 60 Watt, SPST, 240V AC, 0.40A

ModelItemPrice (inc. VAT)
M7800CM7MYY£30.68
See Details
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Frequently Asked Questions

What is the purpose of the float level sensor?

These continuous level sensors feature a magnetic float that can rise and fall as liquid levels change. The float movement creates a magnetic field that actuates a hermetically sealed reed switch (located in the stem of the liquid sensor), thereby triggering the switch to open / close.

What are side mount level switches used for?

The side mount level switches can rotate 180 degrees and monitor liquid rise or fall in a tank. These encapsulated, magnetically coupled dry reed units can deliver more than 5 million switching cycles to control motor starters, solenoids, contractors and relays.

What is the advantage of polypropylene in Madison level switches?

Polypropylene is a type of synthetic resin that is moulded or extruded for making floating switches, providing toughness, flexibility and heat resistance.

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