Thorlabs S310C Thermal Head

Thorlabs S140C Integrating Sphere Photodiode Power Sensor

Ophir LaserStar Laser Measurement Group Laser Power Meter P/N 1Z01600

^ Thor Labs S142C Integrating Sphere Photodiode Power Sensor #X6183

*UNTESTED* S&C Distribution Model 330 DC/AC Relay Slide, 10-16V S-and-C

Brown & Sharpe TT60 Electronic Length Measuring Instrument Type 04490004 [C8S3]

Thorlabs PM100USB Power and Energy Meter Interface for Photodiodes

FS899S Digital Multimeter With USB C Charging And Large Backlight Display