Analog Resistivity and Conductivity Meters

CDH-23 CDH-27 CDH-29

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•	Large 3" Scale for Easy Readability
•	Automatic Temperature Compensation (CDH 23 & 27)
•	Integral Sampling Cup
•	Easy One-Hand Operation
View related products - Conductivity Instrumentation

The CDH-23, CDH-27 and CDH-29 are simple-to-operate, battery powered portable meters which indicate either conductivity or resistivity on a stable, easy-to-read analog display, designed and calibrated specifically for monitoring water quality. These handheld meters feature integral sample cup sensors, water and chemically resistant ABS cases, and rubber booted switches.

Conductivity Meters
The CDH-23 and CDH-27 display conductivity in both Micromhos and Parts Per Million and feature automatic temperature compensation. The economical CDH-23 is ideal for measuring the performance of reverse osmosis and other drinking water filtration systems with a single range of 0-1200 PPM. The CDH-27 displays conductivity across three switchable ranges of 0-50, 0-500, and 0-5000, providing improved accuracy and readability.

Resistivity Meter
The CDH-29 is designed for water quality measurements in units of resistivity across two switchable ranges of ∞ to 20K ohm/in cubed and ∞ to 400 ohm/in cubed.

SPECIFICATIONS
Resolution: 2% full scale
Dimensions: 203.2 x 76.2 x 63.5 mm (8 x 3 x 2½")
Weight: 1.5 lb (680 g)
Accuracy:
    CDH-23 & CDH-27: ±2% of full scale
    CDH-29: ±4% of full scale
Temperature Compensation:
    CDH-23 & CDH-27: automatic 0 to 55°C (32 to 131°F)
    CDH-29: none

To Order (Specify Model Number)

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Part Number	Availability	Price	Description	RoHS	Qty.
CDH-23		$175.00	Conductivity: 0-1200 PPM; 0-1800 µmhos		qty.

CDH-27		$275.00	3-range conductivity: 0-50, 0-500, 0-5000 PPM; 0-75, 0-750, 0-75000 µmhos		qty.

CDH-29		$295.00	Resistivity: ∞-20,000 ohm/in cubed, ∞-400 ohm/in cubed		qty.


Accessories

PHA-10		$8.00	Buffer solution, pH 10.01		qty.

CDSA-45		$10.00	Conductivity standard solution: 45 µmhos/cm		qty.

CDSA-450	1 Week	$10.00	Conductivity standard solution: 450 µmhos/cm		qty.

CDSA-1500		$10.00	Conductivity standard solution: 1500 µmhos/cm		qty.

CDCC-2	2 Weeks	$24.00	Carrying case		qty.

† All dollar amounts on this site are shown in US currency.

Note: Units come with a complete operator's manual.
Ordering Example: (1) CDH-27 Conductivity meter, $275.00, plus (1) CDCC-2 Carrying Case, $24.00, $275.00 + 24.00 = $299.00

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