The HM-500 is the most versatile continuous monitor indicating EC/TDS, pH, and Temp providing accurate and stable readings.

With its rechargeable battery this unit is portable or can be wall mounted. To make it even more user friendly, it comes equipped with a touch screen, high and low alarm set points, and recorded readings. It is ideal for hydroponics and other applications such as labs, pools, aquariums, etc. Tests pH at a range of 0 pH-14 pH, temperatures from 30F-176F, TDS from 0-9999 ppm and EC from 0-9999 µS. Stores up to 20 measurement readings, so you can monitor changes over time. LCD touch-type screen with auto backlighting. Includes a rechargeable lithium ion battery. Features an adjustable alarm that has a high and low set point. Automatically turns off after 5 minutes.

HM Digital HydroMaster HM-500 Features:

Continuous pH/EC/TDS/Temp Monitor
Rechargeable battery
RF Resistant
Portable/Wall Mount/Benchtop
Data Storage: Up to 20 measurement readings
Auto Shut-Off: After 5 minutes
Alarm: Adjustable High & Low Set Point and on/off
Display: LCD Touch-Type Screen with Auto Back lighting
Probe: ABS with Platinum electrodes for EC / Single Junction pH Sensor
Three Year Warranty

HM Digital HydroMaster HM-500 Included Items:

Wall Mountable Bracket
USB Cable
2 Flotation Disks
1 EC/TDS Conductivity Sensor
1 pH Sensor
1 packet of pH 4
1 packet of pH 7
Storage Solution
1000 ppm Calibration Solution

HM Digital HydroMaster HM-500 Specs:

pH Range:	pH: 0.00 – 14.00 pH
Temperature Range:	0.0 – 80.0 °C / 32.0 – 176 °F
TDS Range:	0 – 9999 ppm / 0 – 10.00 ppt
EC Range:	0 – 9999 µS / 0 – 20.00 mS
pH Resolution:	0.1 pH
Temp Resolution:	0.1°C / 0.1 °F
TDS Resolution:	ppm: 0.1ppm (0 – 99.9ppm) / 1 ppm (100-999ppm) / 10ppm (1000-9990 ppm) ppt: 0.01 ppt (0.01 – 10.00 ppt)
EC Resolution:	µS: 0.1 µS (0 – 99.9 µS) / 1 uS (100 – 999 µS) / 10µS (1000-9990 µS) mS: 0.01 mS (0.01 – 20.00 mS)
ATC Resolution:	Yes

pH Accuracy:	± 0.1 pH
Temp Accuracy:	± 1 °C / ˚F
TDS Accuracy:	± 2 %
EC Accuracy:	± 2 %
Power Source:	AC 110 V – 220V / Rechargeable Lithium Ion Battery
Function Environment:	0 – 50°C (0-122°C) / RH 80 % (EC Probe: 0 – 80°C)
Sensor Cable:	24-inch shielded Coaxial Cable
Dimensions:	About 8 x 4 x 1.5 inches
Weight:	15.2 ounces for body / 5 ounces for two probes (without case)

Features

Brand	HM Digital
SKU	GG-660009
Weight (lb.)	0.95
Height (in.)	1.4
Prop 65	No
Lead Time	This product ships in 3-5 Business Days
Length (in.)	8
Width (in.)	4
Warranty	3 Years
UPC	891144000311
ETL Listed	No
UL Listed	No
Shipping Restrictions	AK, HI

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20.18.9

HM Digital HydroMaster HM-500

The HM-500 is the most versatile continuous monitor indicating EC/TDS, pH, and Temp providing accurate and stable readings.