The HydroMaster HM-500 is a pH, EC/TDS & Temperature monitor with high accuracy. This unit can be mounted on the wall for continuous or disconnected measurement and used as a portable unit if it is necessary to measure on several nutrient solution tanks. It is equipped with a rechargeable battery and a touch screen LCD control that is backlit thanks to its light control, making it easy to read the data at any time. An alarm can be set in case the readings are above or below the desired levels. The data can be stored and viewed through the menu on the screen.

Main features:

• Storage up to 20 readings
• Auto-off at 5 minutes
• Adjustable alarm and on / off
• Feeding: AC220V / Internal rechargeable Lithium Ion Battery
• Display: Touch screen LCD Touch screen with backlight
• Probe: Single Junction pH probe and EC probe in ABS and platinum electrodes
• Probe cable: coaxial cable lined

Technical Specifications	Hydro Master
pH	Nutrient (EC)	Temperature
Range	From 0.00 To 14.00 PH	0 – 20 EC	0 to 80 ºC 32 to 176 F
Resolution	0.01 PH	0.1 ΜS (0-99.9 ΜS) 1 μS (100-9999 μS) 0.01 MS (0-20 mS)	0.1 &Ordm;C 0.1 F
Precision (at 25 ºC)	0.02 PH	0.2 EC	± 0.5 &Ordm;C
Temperature compensation	Not applicable	Automatic Temperature Compensation	Not applicable
Working range (temperature)	0 – 50 ºC
Energy	Rechargeable battery
Dimensions	8 x 4 x 1.5 Inches / weight 15.2 Ounces
Other functions	Auto-off function after 5 minutes and low battery indicator