• Portable Digital Stroboscope

Portable Digital Stroboscope

View Quote

Can we help you?

The Monarch PLS Pocket LED Stroboscope is a compact, rugged, light weight device that provides a super bright, uniform light output for performing visual diagnostic inspection and RPM measurements. The silent cool running LED’s are extremely energy efficient providing up to 5 hours of operation on a single charge. A wide operating range of 30-300,000 flashes per minute covers most industrial applications. Additional features include external input for remote triggering or tachometer mode, pulse output, memory for up to 5 preset flash rates, N.I.S.T. calibration certificate, tachometer mode for speed measurements up to 250,000 rpm using optional remote sensors and TTL pulse output. 


  • Energy efficient with long battery life
  • Lightweight and pocket sized
  • Extremely bright, uniform light
  • Quiet/Cool operation
  • No lamp replacements
  • Diagnostic inspection and RPM checks
  • Digital LCD backlit display
  • Tripod mounting bushing (1/4-20)
  • CE marked, RoHS compliant
  • NIST Certificate included
  • Intuitive one hand operation


DisplayLCD display with 6 numeric 0.506 inch (12.85mm) high digits and 5 alphanumeric 0.282 inch (7.11mm) high digits
IndicatorsBattery level, On Target, Select, TACH, and EXT icons
MemoryLast setting before power down is remembered and restored on next power up. 5 user settable memory locations
Flash DurationAdjustable 0.5 to 2500 microseconds or .1 to 18 degrees of rotation
(auto adjusts with flash rate)

This product is designed to be safe for indoor use under the following conditions
(per IEC61010-1)

ComplianceCE EN61326-1:2006 EMC 2004/108/EC
Operating Temp

32-104°F (0-40°C)

HumidityMaximum relative humidity 80% for temperature up to 88°F (31°C) decreasing linearly to 50% RH at 104°F (40°C)
Input PowerBattery powered: Internal Li-Ion rechargeable batteries 3.6Vdc
Light Source7 LED Array
Light OutputAverage: 1800 Lumens at 6000 FPM 8” from lens
Color Temp5600°K
Run Time5 hours typical at 6000 FPM, and 2.8° pulse width with fully charged batteries
Charge Time4-5 hours typical with supplied charger
Weight0.6 lbs (0.27kg) including batteries
Dimensions7.75" x 2.75" x 2.3" (197 x 70 x 58 mm)
Internal Mode
Flash Range30-300,000 FPM (Flashes per minute) 0.5 to 5000Hz
Flash Rate Accuracy

0.005% of setting or ± last digit

Flash Rate Resolution0.01 to 1 FPM (menu selectable),0.1 FPM resolution above 9,999.99 FPM, 1 FPM resolution above 99,999.9
External Modes
Flash Range0-300,000 FPM (Flashes per minute) 0.5 to 5000Hz
Tachometer Mode30 to 300,000 RPM
Accuracy±0.005% of reading or ± last digit
Display Update Rate0.5 second typical above 120 RPM
Trigger to
Flash Delay
~15 µsec
External Input2.5V to 12V peak pulse 500 nanosec min pulse width, positive or negative edge triggered (menu selectable)
Display Update RateInstantaneous
Output Pulse3V pulse. One pulse per flash in internal mode. Mimics input pulse in external mode
Time BaseUltra Stable Crystal Oscillator


Ordering Informations
Cat. No.ModelDescription
6235-010PLSPocket LED Stroboscope, Smart universal 115/230Vac recharger with interchangeable wall plugs, manual and NIST calibration certificate
6235-011PLS-kitSame as above with die cut foam lined plastic latching carry case