Reliable and cost-effective vibration monitoring solutions for cooling fans and other low frequency equipment

Cooling towers are a critical component of production in many industries today. Most towers use a horizontal electric motor driving a jack shaft into a right angle gearbox with vertical output to a large fan. Vibration monitoring of this drive train is essential to provide signals for early warning or provide shutdown when vibration levels exceed a predetermined threshold. The classic legacy solution involved the use of "earthquake" mechanical switches. These devices utilize a spring and magnet concept and are designed to mechanically trip during high vibration. Reliability becomes an issue with mechanical switches due to harsh cooling tower environments, especially in critical applications.

Choose PCB for your Cooling Towers Solutions.

We have thousands of sensors in our online shop in stock, ready to ship, with a lifetime warranty. To discuss specific applications, please contact us or request a quote.

Compare selected models ()
[ clear compare ]
Mouse Over Image for Product Description.
Model Number

Model:640B01

  • Measurement Range: 0.0 to 1 in/sec pk
  • Measurement Range: 0.0 to 25.4 mm/s pk
  • Output: 4-20 mA
  • Output: 4-20 mA
  • Frequency Range: (±10%)180 to 60000 cpm
  • Frequency Range: (±10%)3 to 1000 Hz
  • Sensing Element: Ceramic
  • Sensing Element: Ceramic
  • Weight: 4.7 oz
  • Weight: 131 gm
$240.00 USD
(Pricing valid in US only)
Add to Cart

Add this product to my product comparison

Model Number

Model:642A01

  • Measurement Range: 0.0 to 1.0 in/sec pk
  • Measurement Range: 0.0 to 25.4 mm/s pk
  • Output: 4-20 mA
  • Output: 4-20 mA
  • Frequency Range: (±10%)180 to 60 kcpm
  • Frequency Range: (±10%)3 to 1 kHz
  • Sensing Element: Ceramic
  • Sensing Element: Ceramic
  • Weight: 3.8 oz
  • Weight: 108 gm
$419.00 USD
(Pricing valid in US only)
Add to Cart

Add this product to my product comparison

Model Number

Model:655A91

  • Measurement Range: (±5%)0.0 to 1 in/sec pk
  • Measurement Range: (±5%)0.0 to 25.4 mm/s pk
  • Output: 4-20 mA
  • Output: 4-20 mA
  • Frequency Range: (±10%)600 to 60000 cpm
  • Frequency Range: (±10%)10 to 1000 Hz
  • Sensing Element: Ceramic
  • Sensing Element: Ceramic
  • Weight: 4.2 oz
  • Weight: 120 gm
$235.00 USD
(Pricing valid in US only)
Add to Cart

Add this product to my product comparison

Model Number

Model:686C01

  • Relay: (Type)SPST, Form A or B MOSFET
  • Relay: (Type)SPST, Form A or B MOSFET
  • Power Required: 24 to 240 V DC/AC 50/60 Hz
  • Power Required: 24 to 240 V DC/AC 50/60 Hz
  • Electrical Connector: 2-Pin MIL-C-5015
  • Electrical Connector: 2-Pin MIL-C-5015
$505.00 USD
(Pricing valid in US only)
Add to Cart

Add this product to my product comparison

Model Number

Model:EX686B71

  • Relay: (Type)SPST, Form A or B MOSFET
  • Relay: (Type)SPST, Form A or B MOSFET
  • Power Required: 24 to 240 V DC/AC 50/60 Hz
  • Power Required: 24 to 240 V DC/AC 50/60 Hz
  • Electrical Connector: Terminal Block
  • Electrical Connector: Terminal Block
$770.00 USD
(Pricing valid in US only)
Add to Cart

Add this product to my product comparison

Model Number

Model:685A09

  • Measurement Range: 7 g pk
  • Measurement Range: 68.7 m/s² pk
  • Cable Input: 3/4-14 NPT
  • Cable Input: 3/4-14 NPT
  • Relay: 3A Form C 480 VAC
  • Relay: 3A Form C 480 VAC
  • Electrical Connector: Screw Terminals
  • Electrical Connector: Screw Terminals
$225.00 USD
(Pricing valid in US only)
Add to Cart

Add this product to my product comparison

Model Number

Model:EX685A09

  • Cable Input: 3/4-14 NPT
  • Cable Input: 3/4-14 NPT
  • Relay: 3A Form C 480 VAC
  • Relay: 3A Form C 480 VAC
  • Electrical Connector: Screw Terminals
  • Electrical Connector: Screw Terminals
$595.00 USD
(Pricing valid in US only)
Add to Cart

Add this product to my product comparison