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Hayward Instrumentation

Some of the most precise municipal, commercial, and industrial processes require strict control of flow and a constant feed of information from the system. For these needs, Hayward manufactures a broad line of instrumentation and control equipment such as flow meters, displays, pressure gauges, and more. This equipment keeps you informed on everything going on in your pipes so you can better understand your process and final results. For pricing on any of these products, click the red link and fill out our user-friendly Quote Request Form.

Hayward Instrumentation, Sensors, & Controllers

HEX800 Series Flowmeter
Hayward HEX800 Series Flowmeter Insertion Electromagnetic Flow Sensor, 1 to 12'
- No moving parts; high reliability
- PVC Wetted Body, PVDF End Cap, Cast AL Housing
- Hastelloy C Electrodes, EPDM O-Ring
- 150 psi @ 75F max, 32 to 130F
- Blind 4-20mA output or integral indicating transmitter (HFT440)
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HLS Series Level Sensors
Hayward HLS Series Level Sensors Unaffected by surface foaming, waves, or headspace vapors
- ALL CPVC housing
- Al2O3 (Alumina) diaphragm
- Triple sealed cable 
- Available with FPM or EPDM seals
- 30 and 50ft FEP cated cable standard (up to 1000ft available)
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TLU Series Level Sensor
Hayward TLU Series Level Sensor All PVC heavy duty design
- PTFE coated cable
- Ceramic sensing diaphragm
- Excellent for foam, vapor, or condensate
- Great for tough applications
- Works when ultrasonic sensors won't
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HLST Series Level Indicating Transmitter
Hayward HLST Series Indicating Level Transmitter Dual channel input and display
- Configurable, multi-color LCD display
- Simple, intuitive menu for quick & easy set-up
- NEMA 4X (IP65) face, 1/4 DIN chassis dimensions
- 100-240 VAC, 50-60 Hz power range std.
- Programmable dual relays and dual open collectors
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HMC Series Level Indicating Transmitter
Hayward HMC Series Indicating Transmitter - pH/ORP, conductivity/resistivity, and multi-parameter models
- Temperature indication and transmission included
- Rugged industrial design
- NEMA 4X/IP65 front panel protection
- AC and DC power options
- Mounting hardware included
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VSA Series Industrial Visual/Audible Sentry Alarm System
Hayward VSA Series Industrial Visual/Audible Sentry Alarm System All thermoplastic NEMA 4X enclosure
- High intensity red alarm light
- Lockable latching cover
- High impact all plastic polycarbonate shell
- Includes 6ft power cord plus seal tight cord connector
- Excellent chemical resistance with UL listed enclosure CSA
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GA Series Pressure Gauge and Isolator
Hayward GA Series Pressure Gauge and Isolator - All thermoplastic heavy duty design
- Completely corrosion resistant
- Features extra large color display
- Suitible for corrosive media and slurries
- Ideal for filter/strainer change out alerts
- Available in PVDF or PP with FPM or PTFE diaphragm
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GD Series Digital LED Pressure Alarm
Hayward GD Series Digital LED Pressure Alarm Features display changes from green to red
- Strong polyamide body
- NEMA 4X IP66 housing
- Ceramic diaphragm and 316SS 1/4" NPT port
- Ideal for basket strainer and bag filter monitoring
- Easy to read display
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GDS Series Double Sided Pressure Gauge and Isolator
Hayward GDS Series Double Sided Pressure Gauge and Isolator Heavy duty rugged design
- Completely corrosion resistant
- One piece molded design
- Extra large double sided color display
- Suitable for corrosive media and slurries
- Available in PVDF or PP with FPM or PTFE diaphragm
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GLD Series LED Pressure Indicating Transmitter
Hayward GLD Series LED Pressure Indicating Transmitter Heavy duty one piece molded design
- Rated for NEMA 4X/IP65
- Two programmable open collector outputs
- One analog (4-20mA) output
- Body available in PP or PVDF
- 24 VDC powered
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Pro Electrodes
Hayward Pro Electrodes Rugged molded ABS body
- Large resevoir of solid PP reference material
- 3/4" MNPT process connection
- 10ft cable with BNC connector
- Porous PTFE junction resists blockage
- Available in pH or ORP models
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Industrial Electrodes
Hayward Industrial Electrodes Molded Ryton body
- 3/4" MNPT connections on both ends
- Coaxial porous teflon reference junction to resist fouling
- 10 ft of cable
- Cable is BNC (ZRD metering pumps) or bare wired (HMCP100) transmitter
- Available in pH or ORP models
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Additional Instrumentation Information

Flowmeters measure the rate of flow through a pipeline, often using a drill-in design or external sensor. Level sensors determine the level or amount of fluid in a system. Level indicating transmitters use level sensors measure fluid level then display it in a way that is easy to understand quickly. Pressure gauges, as their name suggests, gauge pressure in a system, displaying it on a screen or display. Our pressure gauges are are equiped with isolators that are used to isolate harmful media so it cannot enter the gauge. Electrodes are electrical conductors used to make contact with a nonmetallic part of a circuit.