• Conductivity standards for EC meters on page A1
• Electrode cleaning, storage and filling solutions on page A1
• pH Calibration buffers on page A3
• Timers on page E4
• Waterproof instrument pouch on page E4
• European-made range of small instruments on pages E1 - E3
• Calibrating pH meters - User note

LARGE DISPLAY pH PENS
Highly stable and accurate readings with large LCD display. Designed for simple one-hand operation. Automatically calibrates to pH 4, 7, 10 buffers and can be adjusted to recognise non-standard buffers as well. Features hold function and auto power off with low battery indicator. The case is IP65 water proof, and the pen will float if accidentally dropped into the water.
Comes with 4 button-cell batteries and a built-in electrode kept moist with a protective cap.
Models E850051 and E850052 have a wider pH range, ATC (Automatic Temperature Compensation) as well as a temperature display in °C.
Model E850052 also features a higher resolution and accuracy.
Dimensions: 165 x 35 x 32mm
Weight: 68g

Model:	E850051	E850052
Range	0~14	0~14
Resolution	0.1	0.01
Accuracy	±0.2 pH	±0.05 pH
Waterproof IP65
Hold
Indicates Low Battery
Auto 3 pt Calibration
Auto Power Off
Auto Temperature Compensation
°C & °F Display

Note: These pens are not suitable for measuring the pH of near neutral, near pure water such as in ponds and fish tanks. Pure water has no buffering capacity so anything can make the pH fluctuate.

E850050 pH pen, range 2-12, resolution 0.1 - discontinued AUD0.00 stock?
E850051 pH pen, range 0-14, resolution 0.1 AUD58.00 stock?
E850052 pH pen, range 0-14, resolution 0.01 AUD86.00 stock?

pH METER
Large 22mm high digits and lightweight design make this pH meter ideal for both field and lab applications. Simple to operate and works with any electrode with a BNC connector. Measures the full 0 ~ 14 pH range with a high 0.01 pH resolution. Features 2 point calibration, hold function, fold out easel back and a tripod screw. Comes with a 9V battery, calibration tool, and full instructions.
Weight: 238 g
Dimensions: 195 x 68 x 30mm

Optional accessories
ESF840016 General purpose pH probe - on this page
840049 Spear tip pH probe
E840090 Water resistant instrument pouch - on page E4
840092 Bench-top tripod
840093 Field tripod

Additionally, this meter may be purchased as a kit which includes an epoxy sealed reference electrode with 750mm cable, pH buffers 4 & 7, deionised water, battery, calibration tool, hard-shell carrying case, instructions and a 9V battery.
Dimensions: Case 280 x 190 x 63mm
Weight: Case 1.1kg.

Our pH calibration buffers are in section A.
Calibrating pH meters - User note

ESF840087 Basic pH meter AUD164.00 stock?
ESF840088 Basic pH meter kit with electrode AUD335.00 stock?

ADVANCED pH METER
Reads either pH or mv together with Temperature in °C or °F (when used with the optional temperature probe). Choose ATC or manual temperature compensation in 0.1° increments. Push button 3 point calibration. High input impedance minimises measuring errors. Accepts any electrode with a BNC connector. Features min-max-average, RS-232 port, large LCD with dual display of measured values and temperature, unique LCD viewing angle contrast control, Auto Power Off, hold, low battery, and over range indicators. Heavy duty but light weight construction perfect for field use. 9V battery included. (Probe not included).
Dimensions: 178 x 76 x 32mm
Weight: 270g with battery

Optional accessories
E840016 General purpose pH probe
840038 ATC temperature probe
840051 Datalogger data lab with data lab graphical software v.1.04 or higher
840053 Graphical software v. 1.03 or higher
840055 RS232 1.2m cable (required for use w/software). A standard RS232 cable is not sufficient, the instrument has a unique plug.
840049 Spear tip pH probe (for non-liquid measurement)
840094 USB adapter cable

ADVANCED PH METER KIT This kit includes everything needed for immediate field use: Advanced pH Meter 840035, epoxy body sealed reference combination electrode with a BNC connector and a 750mm cable, temperature probe, pH buffers 4, 7, and 10, deionized water, instructions, and a 9V battery. Meter features min-max-average, RS-232 port, large LCD with dual display of measured values and temperature, unique LCD viewing angle contrast control, Auto Power Off, hold, low battery, and over range indicators. Heavy duty but light weight construction perfect for field use. Comes in a foam lined, zippered, water resistant case. The kit is designed so that the pH Meter can be calibrated and used without removing it from the case. Dimensions: case 330 x 248 x 89mm Weight: case 1.361kg.

Note: the E840016 pH electrode is required for EFS840035 Advanced pH meter

Calibrating pH meters - User note

This model has been discontinued; we are reducing the price to clear remaining stock. A new model is available - see E850055.

ESF840035 Advanced pH meter only - discontinued AUD0.00 stock?
ESF840036 Advanced pH meter kit with electrode AUD346.00 stock?

GENERAL PURPOSE pH ELECTRODE
For Sper pH meters.
Range: 1~14
Resolution: 0.01
Accuracy: ± (0.02PH+2d)

E840016 General purpose pH electrode AUD81.00 stock?

ADVANCED pH METER
Reads either pH (in 0.01 resolution) or mV in large digits, with time, date, and temperature (in ºC or ºF) shown simultaneously on the lower display. Also indicates stable reading, low battery and displays calibration data. Scroll 99 data points with time stamps and min/max readings directly on the backlit LCD. Features hold, up to 5 point calibration, automatic buffer recognition, manual or automatic temperature compensation and a USB port.
Comes with 4 AAA batteries.
Will accept any pH or ORP probe with a BNC connector.
Dimensions: 170 x 70 x 33mm
Weight: 397g

ADVANCED pH METER KIT E850056
Advanced pH meter E850055 in a hard carrying case complete with a detachable temperature compensated pH probe with- 1m cable, pH buffers 4,7,10 and distilled water.

Unit of Measure	Range	Resolution	Accuracy
pH	0 ~ 14	0.01	±0.02 pH
mV	-499 ~ 499	±0.1mV (-199.9 ~ 199.9 mV) otherwise ±1mV	±0.2mV (-199.9 ~ 199.9mV) otherwise ±2mV
ORP	-199.9 ~ 199.9
Temperature ºC	-5 ~ 80 ºC	0.1°	± 1 ºC

Optional accessories
E840016 pH probe (non-ATC) - on this page
840049 Spear tip pH probe (non-ATC)
840052 Data acquisition software
840054 USB cable
840089 Rubber holster
E840090 Water resistant instrument pouch - on page E4
840092 Bench-top tripod
840093 Field tripod
840096 AC adapter
ESF850088 ORP probe - on this page
850059P ATC pH probe

How to calibrate a pH meter

E850055 Advanced pH meter AUD174.00 stock?
E850056 Advanced pH meter kit with electrode AUD305.00 stock?

DATALOGGING pH METER KIT
Automatically log up to 4,000 readings or manually record 99 readings, each with pH, mV (supports ORP), °C or °F, time and date. Review all data on the meter’s display or download with the included software. Three point calibration with automatic buffer recognition indicating the number of days since last calibrated. Features a backlit dot matrix display with a user friendly menu, automatic or manual temperature compensation, selectable power off, and has tripod screw. Comes ready to use in a hard shell carrying case complete with pH / temperature probe, buffers 4, 7 and 10, instructions, four AAA alkaline batteries, computer cable and software.
Dimensions: 208 x 70 x 40mm
Weight: 255g

Unit of Measure	Range	Resolution	Accuracy
pH	0~14 pH	0.01 pH	±0.02 pH
mV	-999.9 ~ 999.9 mV	0.1 mV	±0.2mV@- 99.9~99.9 mV otherwise ±2 mV
Temperature ºC	-5 ~ 80ºC	0.1ºC	±1ºC

Optional acessories
850059P Replacement ATC pH probe
850088 ORP probe
840016 pH probe (non-ATC)
840049 Spear tip pH probe
840089 Rubber holster
E840090 Water resistant instrument pouch on page E4
840092 Bench-top tripod
840093 Field tripod
840094 USB cable
840096 AC adapter

E850059 Datalogging pH meter kit AUD348.00 stock?

BENCHTOP pH/ MV METER
Rugged housing with large LCD displaying the parameter being measured together with time, date and temperature (in ºC or ºF).

Features

• Automatic or manual temperature compensation
• Automatic or manual ranging
• Automatic buffer recognition
• Digital and analog outputs
• Min/max and 99 data points
• Data hold
• 5 Calibration points
• Electrode status indication

Operates on AC voltage (no batteries). Comes ready to use with ATC pH electrode, electrode holder arm, AC adaptor, computer cable & software. Also accepts any pH or ORP probe with a standard BNC connector.
Dimensions: 217 x 168 x 58mm
Weight: 533g

Unit of Measure	Range	Resolution	Accuracy
pH	0~14	0.01	±0.02
MV / ORP	-1999~+1999	0.1mv -199.9~+199.9 otherwise 1mv	±0.2mv -199.9~+199.9 otherwise ±2mv
Temperature ºC	-5~80	0.1	±0.5 ºC

Optional accessories
840016 pH probe (non ATC)
840049 Spear tip pH Probe
840094 USB cable
850059P Replacement ATC pH probe
850088 ORP probe

This item is temporarily on special! Normal price $382.00.

E860031 Bench-top pH / MV meter AUD295.00 stock?

DISSOLVED OXYGEN PEN
Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries. Designed for simple one-hand operation with automatic temperature compensation and calibration to air. The polarographic probe has a built-in temperature sensor and easy to replace pop-off probe heads. Simultaneously displays dissolved oxygen and temperature readings. Also holds readings and recalls minimum and maximum. IP-67 water proof.
Comes ready to use in a soft carrying case with belt loop, two spare probe heads, electrolyte and 4 AAA batteries.
Dimensions: 180 x 40 x 40 mm
Weight: 175 g

Unit of Measure	Range	Resolution	Accuracy
Dissolved Oxygen	0 ~ 20.0 mg/L	0.1 mg/L	±0.4% mg/L
Temperature ºC	0 ~ 50 ºC	0.1 ºC	±0.8 ºC

Optional accessories
850089 Replacement probe head

E850045 Dissolved oxygen pen AUD316.00 stock?

DISSOLVED OXYGEN METER KIT
Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries. Automatic temperature compensation as well as compensation for salinity and altitude (all factors directly affecting D.O. readings). Simultaneously displays dissolved oxygen (in ppm or mg/L), temperature readings (in C or F) and the date. Review 99 data points with time stamps, minimum, maximum and average readings directly on the large backlit LCD. Recalls the slope and date of the last calibration. Features simple one button calibration to air and adjustable membrane temperature coefficient. The electrolyte level is visible through the transparent galvanic probe with built in temperature sensor and 4 meter cord. Comes in a hard carrying case complete with built in RS-232 port, probe, spare membranes, electrolyte with syringe and 4 AAA batteries.
Dimensions: 170 x 70 x 33 mm
Weight: 397 g

Unit of Measure	Range	Resolution	Accuracy
D.O., ppm and mg/L	0~19.99	0.01	±1.5% F.S.
Temperature ºC	0~50 ºC	0.1 ºC	±1 ºC

Optional accessories
850042 Replacement D.O. probe
850043 Replacement membranes & O-rings (10 ea)
850044 Replacement electrolyte
840052 Software
840054 RS-232 Computer cable. A standard RS232 cable is not sufficient, the instrument has a unique plug.
E840090 Water resistant instrument pouch on page E4
840092 Bench-top tripod
840093 Field tripod

E850041 Dissolved oxygen meter kit AUD451.00 stock?

SALINITY & CONDUCTIVITY PENS
Highly stable and accurate readings with large LCD display. Designed for simple one-hand operation. Simultaneously displays the parameter being measured and temperature in ºC or ºF.
Features automatic temperature compensation, 2 pt. calibration, auto power off, hold function, and a low battery indicator. The case is IP65 waterproof, and will float if accidentally dropped into the water.
Comes with 4 button-cell batteries and a built-in probe with protective cap.
Dimensions: 165 x 38 x 38mm
Weight: 68g

	Range	Resolution	Accuracy
E850036 Salinity pen	0 ~ 10 ppt 10 ~ 70 ppt	0.01 ppt 0.1 ppt	1% fs + 1 d
E850037 Conductivity pen	0 ~ 1999 us 0 ~ 19.99 ms	1 us 0.01 ms
Temperature (both models)	-0 ~ 50 ºC	0.1º	±1 ºC

E850036 Salinity/ temperature pen, large display AUD84.00 stock?
E850037 Conductivity/ temperature pen, large display AUD78.00 stock?

WATER PURITY METER
Measures conductivity (0.1µS ~ 199mS), salinity, TDS (total dissolved solids) and temperature. Determine water purity in boilers, coolers, water conditioning, waste water, photography, environmental testing, aquariums, labs, industrial and quality control. The large LCD shows conductivity, TDS or salinity in large digits with time, date and temperature (in ºC or ºF) shown simultaneously on the lower display. Scroll 99 data points directly on the LCD with time stamps, minimum, maximum and average readings. Also features hold, manual or auto range and ATC (automatic temperature compensation).
Comes in a hard carrying case complete with built in RS-232 and IRDA ports, detachable probe with 1m cord and 4 AAA batteries.
Weight: 397g
Dimensions: 170 x 70 x 33mm

Unit of Measure	Range	Resolution	Accuracy
Conductivity µS/cm	0 ~ 19.9 0 ~ 199.9 0 ~ 1999	0.1 0.1 1	±1% fs + 1d
Conductivity mS/cm	0 ~ 19.99 0 ~ 199.9	0.01 0.1
TDS ppm	0 ~ 19.99 0 ~ 199.9 0 ~ 1999	0.01 0.1 1
TDS ppt	0 ~ 19.99 0 ~ 199.9	0.01 0.1
Salinity ppt	2 ~ 42 ppt	For conductivity and TDS reference only
Temperature ºC	0 ~ 80 ºC	0.1 ºC	± 0.6 ºC <50 ºC ± 1.0 ºC >50 ºC

Optional accessories
840052 Software
840054 RS-232 Computer cable. A standard RS232 cable is not sufficient, the instrument has a unique plug.
E840090 Water resistant instrument pouch
840092 Bench-top tripod
840093 Field tripod

E850038 Water purity meter AUD298.00 stock?
E850038-P Replacement probe for water purity meter AUD108.00 stock?

BENCHTOP CONDUCTIVITY/ TDS/ SALINITY METER
Rugged housing with large LCD displaying the parameter being measured together with time, date and temperature (in ºC or ºF).

Features

• Automatic or manual temperature compensation
• Automatic or manual ranging
• Automatic buffer recognition
• Digital and analogue outputs
• Min/max and 99 data points
• Data hold
• 5 Calibration points on conductivity and TDS (total dissolved solids) and 2 for salinity
• Electrode status indication

Operates on AC voltage (no batteries). Comes ready to use with ATC conductivity electrode, electrode holder arm, AC adaptor, computer cable and software.
Dimensions: 217 x 168 x 58mm
Weight: 533g

Unit of Measure	Range	Resolution	Accuracy
Conductivity uS/cm	0~19.9 0~199.9 0~1999	0.01 0.1 1	±1% fs + 1d
Conductivity mS/cm	0~19.99 0~199.9	0.01 0.1
TDS ppm	0~19.99 0~199.9 0~1999	0.01 0.1 1
TDS ppt	0~19.99 0~199.9	0.01 0.1
Salinity ppt	0~11.38 0~80	0.01 0.1	1% fs+1digit
Temperature ºC	-5~80	0.1	±0.5 ºC

Optional accessories
850038P Replacement conductivity/ TDS/ salinity probe
840094 USB cable

E860032 Bench-top conductivity / TDS / salinity meter AUD401.00 stock?

WATER QUALITY METER

Using interchangeable probes this versatile meter reads pH, mV, conductivity, TDS, DO temperature and ORP. The user can order probes for only the parameters currently required and add additional probes in the future. Intelligent probes electronically retain calibration information. No recalibration is required when changing probes. The display simultaneously reads temperature in user selectable ºC & ºF and all measurements are automatically temperature compensated. RS-232 port enables communication with a computer. Also features auto power off, hold and min-max. Fold out easel back and a tripod screw. Comes with 9V battery and a hard-shell foam-lined carrying case with room for one or two probes.

This Water Quality Meter does not include any probes.

Dimensions: 195 x 68 x 30mm
Weight: 250g

Optional accessories
E840090 Water resistant instrument pouch - on page E4
840092 Bench-top tripod
840093 Field tripod
ESB840057 RS232 1.2m cable - on this page. A standard RS232 cable is not sufficient, the instrument has a unique plug.
840094 USB cable
850080 Software

pH probe is ESF840016 on this page

Some of the other probes for the ESF850081 can be found below

ESF850081 Water quality meter AUD246.00 stock?

SPER PROBES, ELECTRODES & ACCESSORIES

Specs are for ESF850081 meter, probe specs may vary.

ESF850084 Conductivity / TDS Probe
	Range	Resolution	Accuracy
mS	0.2~2.000	0.001	±(3%fs + 1d)
mS	2~20.00	0.01	±(3%fs + 1d)
PPM	132~1320	1	±(3%fs + 1d)
PPM	1320~13,200	10	±(3%fs + 1d)
ºC	0~60	0.1	0.8
ESF850087 Dissolved Oxygen Probe (4m cable)
	Range	Resolution	Accuracy
mg/L	0~20	0.1	±0.4
ºC	0~50	0.1	0.8
ESF850088 ORP Probe
	Range	Resolution	Accuracy
mV	0 ~ 1999	1	± (0.5% = 2d)

ESF850084 WQ meter conductivity/TDS probe AUD175.00 stock?
ESB840057 RS232 Cable for Sper instruments AUD59.00 stock?
ESF850082 ATC temperature probe for ESF850081 AUD54.00 stock?
ESF850087 WQ meter DO probe with 4m cable AUD358.00 stock?
ESF850088 WQ ORP probe, BNC AUD145.00 stock?

BENCHTOP WATER QUALITY METER
Reads pH, ORP (oxygen reduction potential), MV, conductivity, TDS (total dissolved solids), salinity and temperature. Rugged housing with large LCD displaying the parameter being measured together with time, date and temperature (in ºC or ºF).

Features

• Automatic or manual temperature compensation
• Automatic or manual ranging
• Automatic buffer recognition
• Digital and analog output
• Min/max and 99 data points
• Data hold
• 5 Calibration points
• Electrode status indication

Operates on AC voltage (no batteries). Comes ready to use with ATC conductivity and pH electrodes, multiple electrodes holder arm, AC adaptor, computer cable & software. Also accepts any pH or ORP probe with a standard BNC connector.
Dimensions: 217 x 168 x 58mm
Weight: 533g

Unit of Measure	Range	Resolution	Accuracy
pH	0~14	0.01	±0.02
MV / ORP	-1999~+1999	0.1mv -199.9~+199.9 otherwise 1mv	±0.2mv -199.9~+199.9 otherwise ±2mv
Conductivity uS/cm	0 ~ 19.9 0 ~ 199.9 0 ~ 1999	0.01 0.1 1	±1% fs + 1d
Conductivity mS/cm	0 ~ 19.99 0 ~ 199.9	0.01 0.1
TDS ppm	0 ~ 19.99 0 ~ 199.9 0 ~ 1999	0.01 0.1 1
TDS ppt	0 ~ 19.99 0 ~ 199.9	0.01 0.1
Salinity ppt	0~11.38 0~80	0.01 0.1	1% fs+1digit
Temperature ºC	-5~80	0.1	±0.5 ºC

Optional accessories
840016 pH Probe (non ATC)
840049 Spear tip pH probe
840094 USB cable
850038P Replacement conductivity/ TDS/ salinity probe
850059P Replacement ATC pH probe
850088 ORP probe

E860033 Bench-top water quality meter AUD480.00 stock?

COMPACT DIGITAL REFRACTOMETERS
These pocket digital refractometers measure brix, salinity and a wide variety of other parameters in the field with laboratory accuracy. As small, light and simple to use as optical refractometers, but with the precision of a digital readout.
Samples can be as small as 1.0 mL. Sample temperature is initially displayed on the large LCD followed by the measurement results. The sophisticated microprocessor provides automatic calibration, automatic temperature compensation and automatic shut-off after 3 minutes. (The temperature is given in Fahrenheit only, but since the compensation happens automatically, the actual temperature is not really important.)
A sturdy water resistant case protects the electronics from wet environments and makes for easy clean-ups. All models feature one button calibration to distilled water and indicate when the battery should be replaced (8000 readings).
Comes ready to use with distilled water, transfer-pipette, AAA battery, instructions and a carrying case.
Dimensions: 118 x 62 x 32mm
Weight: 130g

Model	Units	Range	Resolution	Accuracy
E300051	Brix	0~65%	0.1	±0.2%
E300052	Brix	40~95%	0.1	±0.2%
E300053	Brix	0~95%	0.1	±0.2%
E300054	Salinity % Salinity ppt	0~28% 0~280ppt	0.1 1ppt	±0.2% 2ppt

E300051 Compact digital refractometer, Brix 0-65% AUD282.00 stock?
E300052 Compact digital refractometer, Brix 40-95% AUD282.00 stock?
E300053 Compact digital refractometer, Brix 0-95% AUD390.00 stock?
E300054 Compact digital refractometer, salinity AUD335.00 stock?

CUSTOM DIGITAL REFRACTOMETERS
Custom scale refractometers are available by special order. Please allow lead times of approximately 60 days.
The customer may choose up to 4 scales per refractometer which will be programmed into the unit prior to shipment. The models have either single or multiple scales (2, 3, or 4), and standard or wide-range scales. Choice of 94 scales.

List of available scales

E300056 Custom digital refractometer, 1 scale AUD399.00 stock?
E300056B Custom digital refractometer, 1 scale, wide range AUD530.00 stock?
E300057 Custom digital refractometer, 2 - 4 scales AUD464.00 stock?
E300057B Custom digital refractometer, 2 - 4 scales, wide range AUD596.00 stock?

LABORATORY DIGITAL REFRACTOMETERS
These Laboratory refractometers measure brix, salinity, refractive index and clinical parameters with full scale accuracy of 0.1% using CCD scanner (= linear scanned array imaging) technology. Samples can be as small as 0.4 mL.
Measurement results, unit of measure and sample temperature are all displayed on the large LCD and visual alarms are indicated by a red LED. The sophisticated microprocessor provides automatic calibration, automatic temperature compensation and automatic shutoff (after 3 minutes). A sturdy water resistant case protects the electronics from wet environments and makes for easy clean ups. All models feature one button calibration to distilled water and indicate when the battery should be replaced (5000 readings).
Supplied ready to use with a 9V battery, distilled water, transfer pipette, instructions and a protective case.
Dimensions: 180 x 100 x 65mm
Weight: 500g

Unit	Range	Res.	Accuracy
E300033
Brix	45 ~ 95%	0.1%	±0.1%
Refractive Index	1.4098 ~ 1.5318	0.0001	±0.0002
E300034
Brix	0 ~ 95%	0.1%	±0.1%
Refractive Index (nD)	1.3330 ~ 1.5318	0.0001	±0.0002
E300035
Brix	0 ~ 60%	0.1%	±0.1%
Salinity %	0 ~ 28%	0.1%	±0.1%
Salinity ppt	0 ~ 280 ppt	1 ppt	±1 ppt
Refractive Index (nD)	1.3330 ~ 1.4419	0.0001	±0.0002
E300036
Urine Specific Gravity	1.000 ~ 1.090	0.001	±0.002
Serum Protein g/dL	0 ~ 12	0.1	±0.1
Refractive Index (nD)	1.3330 ~ 1.4098	0.0001	±0.0002
All Models
Temperature °C	0 ~ 40°	0.1°	1°

E300033 Laboratory digital refractometer, Brix 45 ~ 95% AUD665.00 stock?
E300034 Laboratory digital refractometer, Brix 0 ~ 95% AUD682.00 stock?
E300035 Laboratory digital refractometer, Brix/ salinity AUD625.00 stock?
E300036 Laboratory digital refractometer, urine/ serum AUD665.00 stock?