Hanna Instruments HI 991301 pH Meter, ±0.01pH Accuracy, 0.01pH Resolution, 14pH Max, +60 °C Max

RS Stock No.:: 410-0930
Mfr. Part No.:: HI-991301
Brand:: Hanna Instruments

Hanna Instruments HI 991301 pH Meter, ±0.01pH Accuracy, 0.01pH Resolution, 14pH Max, +60 °C Max

Subtotal (1 unit)*

£744.27

(exc. VAT)

£893.12

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

6 unit(s) ready to ship
Plus 3 unit(s) shipping from 03 November 2025

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 +	£744.27

*price indicative

RS Stock No.:: 410-0930
Mfr. Part No.:: HI-991301
Brand:: Hanna Instruments

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Hanna Instruments
	Maximum pH	14pH
	Minimum pH	0pH
	pH Resolution	0.01pH
	Best pH Accuracy	±0.01pH
	Maximum Temperature Measurement	+60 °C
	Minimum Temperature Measurement	0°C
	Temperature Measurement Resolution	0.1°C
	Best Temperature Measurement Accuracy	±0.5 °C
	Maximum Conductivity	20mS/cm
	Minimum Conductivity	0mS/cm
	Conductivity Resolution	0.01mS/cm
	Best Conductivity Accuracy	±2%
	Maximum Operating Temperature	+50°C
	Minimum Total Dissolved Solids	0ppt
	Minimum Operating Temperature	0°C
	Height	36mm
	Model Number p	HI 991301
	Battery Life	500 h
	Weight	210g
	Battery Type	AAA
	Power Source	Battery
	Length	150mm
	Best Total Dissolved Solids Accuracy	±2%
	Maximum Total Dissolved Solids	10ppt
	Total Dissolved Solids Resolution	0.01ppt
	Dimensions	150 x 80 x 36mm
	Width	80mm

	Select all
	Brand Hanna Instruments
	Maximum pH 14pH
	Minimum pH 0pH
	pH Resolution 0.01pH
	Best pH Accuracy ±0.01pH
	Maximum Temperature Measurement +60 °C
	Minimum Temperature Measurement 0°C
	Temperature Measurement Resolution 0.1°C
	Best Temperature Measurement Accuracy ±0.5 °C
	Maximum Conductivity 20mS/cm
	Minimum Conductivity 0mS/cm
	Conductivity Resolution 0.01mS/cm
	Best Conductivity Accuracy ±2%
	Maximum Operating Temperature +50°C
	Minimum Total Dissolved Solids 0ppt
	Minimum Operating Temperature 0°C
	Height 36mm
	Model Number p HI 991301
	Battery Life 500 h
	Weight 210g
	Battery Type AAA
	Power Source Battery
	Length 150mm
	Best Total Dissolved Solids Accuracy ±2%
	Maximum Total Dissolved Solids 10ppt
	Total Dissolved Solids Resolution 0.01ppt
	Dimensions 150 x 80 x 36mm
	Width 80mm

RoHS Status: Exempt

HI-991301 High Range EC, TDS, PH and °C Meter

The HI-991301 from Hanna is a high range meter for testing pH, electro-conductivity, total dissolved solids, and temperature. The meter is supplied with a multi-parameter probe specifically designed for this meter.

Features and Benefits:

Simple to use – has a two-operation button
Full scale pH readings
Automatic calibration and temperature compensation
Selectable EC/TDS conversion factor
Adjustable conductivity temperature coefficient
Large LCD display
Battery level and low battery indicator - 3 x 1.5V AAA / approx. 600 hours of continuous use
Simple calibration procedure
Probe is housed in a rugged plastic sheath with reinforced rubber cable and stainless-steel DIN connector
IP67 rating – waterproof casing
Probe quick connect system
Auto off function

Applications:

Greenhouse irrigation
Hydroponics
Groundwater monitoring from agriculture nutrient pollution

Note

For spare probe please refer to HI-1288 (RS article 469-7507)

Supplied with

Multi-parameter probe, batteries, instruction manual, hard carrying case.