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HM Digital Meters

HM Digital® water quality testing instruments are superior in construction and
performance, yet made available at a very economic cost. HM Digital, Inc.® is the only
manufacturer of economical in-line dual TDS meters that measure total dissolved solids
(TDS) levels of feed and product water lines simultaneously, an effective way to compare
rejection rates and gauge reverse osmosis membrane, water fi lter and water purifi cation
performance.


(COM-100)


(TDS-3)


(TDS-4)

 


Hand Held TDS Meters
Description Part #
EC/TDS/TEMP WATERPROOF METER COM-100
TDS & TEMP METER W/CASE; 0-9990ppm TDS-3
POCKET SIZE TDS METER; 0-9990ppm w/ATC TDS-4
ECONOMY TDS METER; 0-9990 PPM TDS-EZ
0-5000 PPM (mg/L)  AP-1
   
(TDS-EZ)

(AP-1)

 

(PH-200)

Hand Held pH Meter
Description Part #
WATERPROOF PH METER PH-200


(ORP-200)

Hand Held ORP Meter
Description Part #
HAND HELD WTR/PRF ORP METER ORP-200


(QC-1)


(DM-1)


(PSC-150)

Continuous Monitors
Description Part #
QUICK CHECK TDS/COND MONITOR QC1
IN-LINE DUAL TDS METER; 1/4" JG DM-1
IN-LINE DUAL TDS METER; 3/8" JG DM-1A
INLINE DUAL TDS METER COMMERCIAL DM-2
EXTENDED RANGE TDS/EC CONTROLLER PSC-150