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Level Switches & Transmitters

Devices used for monitoring and controlling liquid levels in water storage tanks, reservoirs, and various industrial processes are absolutely essential to ensuring the safety and efficiency of these systems. Among these devices, level switches and level transmitters play key roles. In using liquid level switches, one would typically sense either the presence or the absence of a liquid at a specific level and then send an on/off signal to some control device when the liquid hit a defined point. Things like pumps, alarms, or other control systems could be used to "do something" when the liquid level reached that defined point. 

In contrast, we have the level transmitters, which send data to indicate the level of the liquid in a tank. These devices work well in the application of accurate level measurement in tank monitoring. They provide a nice continuous level measurement. They give an accurate measurement of the liquid in the tank, and they do it over an extended range. This is why you will find these devices used in process control, wastewater treatment, and the food and beverage industry. They give accurate measurements even in hazardous environments. They give satisfactory performance even with process fluids that are difficult to measure—like those with a range of viscosities or that have a density different from water.

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Dwyer SLD-ACY Single channel leak detection relay
Dwyer SLD-ACY Single channel leak detection relay
$238.46 $287.04
Single channel leak detection relay, 470 to 10k ohm adjustable sensitivity.
Dwyer SLD-ACX Single channel leak detection relay
Dwyer SLD-ACX Single channel leak detection relay
$238.46 $287.04
Single channel leak detection relay, 470 ohm fixed sensitivity.
Dwyer DLD-ACZ Dual channel leak detection relay
Dwyer DLD-ACZ Dual channel leak detection relay
$335.50 $403.85
Dual channel leak detection relay, 4.7k to 100k ohm adjustable.
Dwyer DLD-ACY Dual channel leak detection relay
Dwyer DLD-ACY Dual channel leak detection relay
$335.50 $403.85
Dual channel leak detection relay, 10k to 25k ohm adjustable.
Dwyer QPC-ASX Quadraplex pump controller
Dwyer QPC-ASX Quadraplex pump controller
$782.89 $942.37
Quadraplex pump controller, SOSO sequence.
Dwyer ULSS-10 4.1' (1.25 m) measuring range
Dwyer ULSS-10 4.1' (1.25 m) measuring range
$898.13 $1081.08
4.1' (1.25 m) measuring range, non-contact transmitter, SPST programmable relays, 1" NPT thread. (USB adapter necessary for calibration. One adapter can program multiple units.)
Dwyer 123-7000-153 Water level control
Dwyer 123-7000-153 Water level control
$597.58 $885.30
Water level control, cast iron chamber, SPDT snap switch.
Dwyer L8-WP Liquid level switch.
Dwyer L8-WP Liquid level switch.
$175.11 $259.42
Liquid level switch with weatherproof enclosure (phenylpolioxide).
Dwyer GSD3DA Level Switch
Dwyer GSD3DA Level Switch
$487.63 $722.41
Suspended level switch, aluminum housing, Urethane diaphragm, SPDT switch.
Dwyer TFLS2-01 Level Switch
Dwyer TFLS2-01 Level Switch
$796.12 $958.30
Compact tuning fork level switch.