Photomultiplier probe for exceptional sensitivity and accuracy

Big 4 1/8 inch meter for easy reading

Mirror band on meter face for precise readings

Meter reads-out filtration and printing-time values

Linear response- meter needle responds proportionately

Equally-spaced increments across the scale

+100cc to -100cc filtration range

1 to 100 second exposure range

Spot or integrated readings- integrator included

Automatic safety overload circuitry

Optional accessory programmable memory modules mean extra speed and precision in changing programs