You are here: Home > Tachometers > Tachometer Sensors

Tachometer Sensors

(Optical Sensors, Proximity Sensors, Infrared Sensors, Magnetic Sensors)

Tachometers and Speed Transmitters require a permanently mounted speed sensors that observe a target on the machines rotating shaft. Several types of sensors are available including Proximity, Hall Effect (magnetic), Optical and Laser. Permanently mounted systems usually use a Proximity or Hall Effect type sensor. Laser and Optical Sensors are more suited for portable equipment and special applications. Optical Sensors work well with “Reflective Tape” as a target on the shaft but are not recommended for permanent installation as the sensor may become dirty over time or the tape may come loose.

To create the “speed pulse” required by the Tachometer to calculate RPM either a Proximity or Hall Effect Sensor is mounted to observe a Keyway or Speed Gear Wheel mounted on the machines rotating shaft. While Keyways generally create a once per turn pulse speed gears may produce 10, 30, 60 or 100 pulses (teeth) per revolution. For highly accurate and low speed readings a Speed Gear with multiple pulses per revolution is preferred. For balancing a “once per turn” pulse is preferred.

Please Visit Our Knowledge Base for More Information!
Sort By:
Page of 2
150,000 RPM Monarch Instrument Smart-Laser Speed Sensor

Laser speed sensor provides a TTL pulse output for vibration data collection, portable balancing or data acquisition

  • Completely self-powered and contained everything in one small package
  • On-Target indicator
  • Smart auto gain provides best performance in picking up target reflection
  • Manual sensitivity knob provides dynamic fine tuning of sensor response
  • 1/4 - 20 UNC mount for tripod
  • TTL pulse output with signal inverter switch
  • RS-232 output can provide ASCII information to a PC
  • External DC power or re-chargeable internal battery

Our Price: $1,313.00
Remote Optical Sensor for Tachometer Monarch Instrument Optical Sensors

1-250,000 RPM. The most versatile and popular sensors we make. The ROS-W (tinned wire termination) and ROS-P (1/8" phone plug termination) are threaded stainless steel remote optical sensors with a visible red LED light source. All these sensors have the "on-target" green LED indicator.

Proximity Sensor for Tachometer Monarch Instrument Proximity Sensors

1-60,000 RPM. The P5-11 is a rugged industrial 2 wire probe style inductive sensor. It can be used 0.2 inches from a 0.5 inch metallic target such as a bolt head or shaft locking key.

Monarch Instrument Magnetic Sensors Monarch Instrument Magnetic Sensors

1-99,999 RPM. Self-powered gear sensor. M-190W and M190P are very popular magnetic sensors commonly used with 60 tooth 20 pitch gears. The sensors mount with 0.005 inches (0.127mm) of a 0.1 inch (2.5mm) target. These sensors require no power from our display modules as they self-generate an AC signal.

99,000 RPM Monarch Instrument SPSR-115/230 Self Powered Optical Speed Sensor with Universal Power Supply

Optical self powered sensor kit provides a TTL pulse output for data collection - 110/230 VAC

  • Available Feb. 2007
  • Completely self-powered
  • Measure rotational speed at rates up to 99,000 RPM from up to 3 feet away
  • Easily Swap Sensors via phono jack
  • Provides TTL signals (positive 0-5V or negative 5-0V) through a BNC cable
  • Pulse width is determined by the size of the target
  • 7 hour Ni-Cad batteries
  • Includes the SPSR-115/230 Interface Module, ROS-P Optical Sensor, Charger and Reflective Tape

Our Price: $450.00
Proximity Sensor for Tachometer Monarch Instrument Infrared Sensors

1-999,990 RPM. Both the IRS-P and IRS-W are proven to be reliable high speed sensors. With a working range of 12 to 25 mm from very high speed equipment or an application providing contrasting light and dark surfaces.

Battery Powered Transmitter Monarch Instrument SPSR-IM Self Powered Sensor Interface Module and Optional Sensors

Interface module powers various sensors and outputs a TTL pulse for data collection

  • Available Feb. 2007
  • Completely self-powered
  • Optical, magnetic, and infrared sensors available
  • Easily swap sensors via phono jack
  • Provides TTL signals (positive 0-5V or negative 5-0V) through a BNC cable
  • Pulse width is determined by the size of the target
  • 7 hour Ni-Cad batteries or use external power
  • RoHS compliant and CE approved
  • Includes 110230 Vac power supply / charger

Our Price: $289.00
99,000 RPM Monarch Instrument SPS-5/230 Self Powered Optical Speed Sensor - 115-230 Vac (Universal)

115-230 VAC Universal optical sensor kit provides a TTL pulse output for data collection

  • Completely self-powered
  • Measure rotational speed at rates up to 99,000 RPM from up to 3 feet away
  • Easily Swap Sensors via phono jack
  • Provides TTL signals (positive 0-5V or negative 5-0V) through a BNC cable
  • Pulse width is determined by the size of the target
  • 7 hour Ni-Cad batteries
  • Includes the SPS-5 Interface Module, ROS-P Optical Sensor and 115-230 VAC Universal power supply/recharger

Our Price: $450.00
Magnetic Sensor for Tachometer 6180-037 MT-190W Magnetic Trigger Sensor/Amplifier with 8 foot cable and 3 tinned leads

M-190W is commonly used with 60 tooth 20 pitch gears. These sensors require no power from our display modules, since they self-generate an AC signal.
  • Termination: tinned wire leads
  • Operating Distance: 0.005" (0.127 mm) gap for target
    0.1" (2.5 mm) minimum
  • Speed Range: 1-99,999 RPM
  • Operating Temperature: -100ø to 225øF (- 73ø to107øC)
  • Power required: Self Generating
  • Output Signal: 190V P-P
  • Cable Length: 8 feet (2.4 m)
  • Dimensions: 2.0 " (L) x 0.625" (50 x 16 mm)

Our Price: $252.00