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Level Indicators

Easy level reading through the complete 'Cat and Mouse' level indicator system. Easily adjustible with closed system option ideal for corrosive fuming chemicals.

Not sure what to buy for your cat and mouse level indication requirement, click here.
SFA Cat and Mouse Kit
The "essentials"
SFA kit1
Product Information:
Kit contains 1) PP float 2) 10m of PP string
3) 2 pulleys and 4) 1 magnetic counterweight.
  • Great Value!
  • 199.95+vat
Cat and Mouse in Action
Cat and Mouse in Action
SFA Cat & Mouse Explanation:
Advantages are that it provides clear external level indication of internal liquid levels with easily adjustible sensors (BSM 501). It also provides a sealed off system - ideal for corrosive fuming chemicals. Note: It is important to specify that the transparent tube has to be transparent PVC, 63mmOD metric.
SFA Cat and Mouse system
The "comprehensive offer"
Comprehensive Offer
Product Information:
This offer contains all necessary items

Incl: ancillaries for installation. Requires a NB100 flange (at the top) and allowance for the bracketing of the external tubing.

  • From just
  • 474.95
Level Sensor (BSM 501/63)
Magnetic Sensor
Product Information:
Magnetic level sensor to be fitted with the 'Cat and Mouse' system. It is a bi-stable switch triggered by the magnet passing the sensors. It provides N/C & N/O contacts.
  • Great Value!
  • 62.95+vat

Bamo - Full Product Description

SFA 'Cat and Mouse' Complete System

pdf SFA ext. level indicator
pdf BSM level switch

  • Easy to install - Convenient to viscous, aggressive and waste liquids
  • High, long or small tanks
  • Adjustable level switches - Kits for ordering


The float, suspended to a cable supported with 2 pulleys, drives a balance weight inside the external transparent tube. The balance weight has a built in magnet to operate the level switches.


This SFA level indicator includes a float and a balance weight linked together by cable sliding on 2 pulleys. The balance weight is guided inside a transparent PVC tube ( 63 x 57) and allows an easy level reading. The guiding tube is fixed with PE collars; it is equipped in option with PVC graduated ruler, level switches.

Not sure what to buy for your cat and mouse level indication requirement, click here.

pdf BSM level switch Factsheet pdf Ext. level indicator (SFA) Factsheet logo Back to Products

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