Experience the advance generation of
contamination control method


The PH-4 digital photometer offers the smallest size and weight in a self-contained cabinet (probe included) available today. The extremely simple menu-driven software system utilizes command prompts to inform the user of each setup process. The PH-4 plug and play probe is light weight and features remote control of alarm options (includes a visual, audible, and the NEW INNOVATIVE VIBRATING alarm).

Standard Features

High Resolution Graphical Display
Menu-Driven Software Functions
Automatic Zeroing and Ranging
LED Light Source (Light Chamber)
Reference Settings for Multiple Testing Reagents
Retains Reference Settings When Powered Off
Displays Upstream Ref. / Concentration Setting
Stable at Low Concentrations of Aerosol (≥ 10ug/l)
Probe Selectable Audible, Visual, Vibrating Alarms
Plug and Play Probe – 11 foot length
USB Interface.
Lightweight Heavy Duty Black Aluminum Case
Detachable Shoulder Strap
Accepts Worldwide Operating Voltages
Storage Area for Probe and Accessories.



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