Dedicated to boiler and cooling tower applications
Flat-tipped, pre-amplified pH probe with titanium body
Multi-level LCD display
On-screen tutorial messages for calibration and set-up
Automatic Temperature Compensation
Automatic one or two point calibration
BEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readings
Battery % displayed on startup.
Compact, heavy-duty, and waterproof
Easy to clean flat-tip sensor

HI 99141 is a waterproof, portable pH/ temperature meter supplied with a flat tip probe specifically designed for boiler and cooling tower applications.

The HI 72911D pre-amplified double junction pH probe features a recessed flat tip that is easy to clean and prevents solids in solutions from collecting on the sensor. The titanium body of the HI 72911D functions as a potential matching pin for increased stability of readings and extended sensor life.

Order Information: HI 99141 is supplied with HI 72911D pH/ temperature probe, HI 70004 pH 4.01 buffer solution sachet, HI 70007 pH 7.01 buffer solution sachet, HI 700661 electrode cleaning solution sachets (2), batteries, instructions and hard carrying case.

Product Manuals

Manual: Download

Specification :

Range	pH	-2.00 to 16.00 pH
	Temperature	-5.0 to 105.0°C / 23.0 to 221.0°F
Resolution	pH	0.01 pH
	Temperature	0.1°C / 0.1°F
Accuracy @ 20°C	pH	±0.02 pH
	Temperature	±0.5°C (up to 60°C), ±1.0°C (outside) / ±1.0°F (up to 140°F); ±2.0°F (outside)
pH Calibration		automatic one or two point calibration with two sets of memorized buffers (Standard 4.01, 7.01, 10.01 or NIST 4.01, 6.86, 9.18)
Temperature Compensation		Automatic, -5 to 105°C (23 to 221°F)
pH Electrode		HI 72911D titanium body, pre-amplified pH electrode with internal temperature sensor, DIN connector and 1 m (3.3’ cable) (included)
Battery Type / Life		1.5V AAA (3) / approximately 1200 hours of continuous use. Auto-off after eight minutes of non-use
Environment		0 to 50°C (32 to 122°F); RH max 100%
Dimensions		152 x 58 x 30 mm (6.0 x 2.3 x 1.2”)
Weight		205g (7.2 oz.)