HM Digital PM-2 External In-Line TDS Purity Monitor

HM Digital

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SKU:: PM-2
UPC:
Availability:: Please contact us for pricing and lead time. '$0' indicates no quote online.
Sensor-Type:: TDS
Brand:: HM Digital
Product-Category:: RO System

Description
Warranty Information

The HM Digital PM-2 is the enclosed version of the PM-1: the same purity-alert electronics in a finished external housing, ready to mount on or beside a water cooler or purification system.

It raises a red warning light and a repeating audible alert when water purity passes the set limit — the alarm beeps for 20 seconds every 10 minutes until the system is serviced, so it does not simply time out and get forgotten. Mains powered, so there is no battery to service. Choose the PM-1 instead if you are building the board into your own equipment.

TECHNICAL SPECIFICATIONS: HM Digital PM-2 External In-Line TDS Purity Monitor

SKU / Model	PM-2
Product Type	External enclosed in-line TDS / conductivity purity monitor & alert
TDS / EC Range	0–200 ppm (400 µS)
Maximum Set Point	198 ppm (396 µS)
Default Set Point	10 ppm
Accuracy	±2%
Temperature Compensation	Automatic (ATC)
Conversion Factor	NaCl (avg. 0.5)
Alarm	Beeps for 20 seconds every 10 minutes while over the set point
Alert	Red warning light with audible alarm
Factory Calibration	150 ppm NaCl — re-calibration unnecessary
Sensor Cable Length	28.5" (72 cm) including sensor head
Power Supply	AC 110 V / 220 V
Power Cable Length	59" (150 cm)
Dimensions	4.75 × 3.1 × 2.4 in (12 × 8 × 6 cm)
Weight	0.9 lb (415 g), not including sensor and cables
Warranty	1 Year Limited Warranty