Click for larger image and other views

How can we improve our images or Product Specifications?

Other Documentation

Hanna Instruments 99141N Waterproof pH Meter, For Boilers and Cooling Towers

Be the first to review this item


Specifications for this item
Number of Items
Inside Depth
5.9  inches
Measurement Type
pH , Temperature
Part Number
HI 99141
Item Weight
0.46 pounds
Brand Name
Hanna Instruments
Size Name
-2.00 to 16.00 pH Range

This item is no longer available

This item ships for FREE with 2-Day Shipping on orders over $50. (Details)

Want it delivered on Tue, Apr 28? Order in-stock items in the next 23 hrs 37 mins and choose One-Day Shipping at checkout.

  • Share

This item has already been added to

Update Quantity Cancel

Select a List Create New List

You can add a description later

Key Features

  • Automatic one- or two-point calibration with two sets of memorized buffer values, for ease of use
  • On-screen tutorial messages for calibration and set up
  • Automatic Temperature Compensation (ATC) to eliminate the need for extra calculations
  • Battery error prevention system to help prevent false readings
  • Multi-level LCD screen for readability

Package Details

Shipping Weight: 2.75 pounds
Package Size: 13.9 x 11.5 x 3.2 inches

Product Description

The HI 99141N is a waterproof, portable pH and temperature meter suitable for field use. The meter features a pH and temperature probe, a multi-level LCD screen, Automatic Temperature Compensation (ATC), and a battery error protection system to prevent inaccurate readings. It includes on-screen tutorial messages for calibration and set up.

Calibration is automatic at one or two points with two sets of memorized buffers (Standard 4.01, 7.01, 10.01 or NIST 4.01, 6.86, 9.18), and calibration sachets are included.

The meter is supplied with a flat tip pH probe specifically designed for boiler and cooling tower applications. The probe is easy to clean and prevents solids in solutions from collecting on the sensor.

pH range is -2.00 to 16.00 (+ or - 0.02 pH at 20 degrees C) with a resolution of 0.01 pH. Temperature range is -5.0 to 105.0 degrees C (23.0 to 221.0 degrees F) + or - 0.5 degrees C (up to 60 degrees C) and 1.0 degrees C (outside); 1.0 degrees F (up to 140 degrees F) and 2.0 degrees F (outside) with a resolution of 0.1 degrees C (0.1 degrees F). The device operates on three 1.5V AAA batteries and turns off automatically after eight minutes of non-use. Dimensions are 152 x 58 x 30 mm/6.0” x 2.3” x 1.2’’ (H x W x D), and weighs 205 g/7.2 oz.

pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.

Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) 9001 standards.

What’s in the Box?

  • HI 72911D pH/temperature probe
  • HI 70004 pH 4.01 and HI 70007 pH 7.01 buffer solution sachets
  • HI 700661 electrode cleaning solution sachets (2)
  • Batteries
  • Instructions
  • Hard carrying case

How can we improve our Product Description?

Customer Reviews

There are no customer reviews yet.

Be the first to review this item

Go to the HomePage

Order by Phone
M-F 8am-10pm ET, Sat-Sun 8am-5pm ET 800-220-4242

My Account| Returns| Help

Website Feedback| Contact Us| Sell on AmazonSupply| Become an Affiliate

Privacy Notice| Conditions of Use

Follow Us 

© 2015, Inc. and its affiliates.