Monitor Sensors are made in Australia. They include an innovative range of μSmart
(pronounced "micro Smart") sensors,
and a corresponding range of
μSmart loggers.
In the following table, we provide information about many sensors, with links to specifications and
current prices. We provide prices in Australian dollars, US dollars and Euro. Prices are updated
regularly to reflect changes in exchange rates, but all prices are indicative and do not constitute a formal quotation.
For a formal quotation,
and/or to allow us to understand your needs, please contact us.
| Type of sensor |
Code |
Description |
Specifications |
Price |
| Temperature (air) |
TA1 |
Air temperature sensor, 16-bit resolution (1 part in ~65,000) over range from -20 to 60°C
(or higher if requested).
Accuracy generally ±0.1°C. Operates in 0-100% humidity. Alternative units include degrees Celsius
and degrees Fahrenheit.
Designed to be mounted vertically in sensor shelter
or standard Stevenson screen. Output in μSmart serial data (ASCII) format, and optionally as voltage, frequency or current as well. |
PDF:76KB |
$ |
| Temperature (water) |
TW1 |
Like TA1, but sealed and fully immersible. Stainless steel body, available in two diameters(32 or 37 mm OD), with copper heat sink. |
" |
$ |
| Temperature (soil) |
TS1 |
Same as TA1, with longer cable. |
" |
$ |
| Temperature (grass) |
TG1 |
Like TA1, but with a white painted flag attached to sensor to simulate the radiation and thermal
lag characteristics of glass/acohol grass minimum thermometer. |
" |
$ |
| Temperature (leaf) |
TL1A |
Like TA1, but sensing element is separated from sensor housing by 1 m of cable.
Sensing element must be thermally coupled to the leaf or other surface. |
" |
$ |
| Relative humidity |
HU1 |
Relative humidity sensor (active polymer dielectric), 16-bit resolution (1 part in ~65,000)
over range from 0-100% humidity.
Accuracy generally ±2%. Operates from -30 to 80°C. Designed to be mounted vertically in sensor shelter
or standard Stevenson screen. Output in μSmart serial data (ASCII) format,
and optionally as voltage or frequency as well. |
PDF:22KB |
$ |
| Wet and dry bulb temperature |
TA2 |
Like TA1, but with two temperature sensors, this wet and dry bulb temperature sensor
includes bottle and wick. Note that TA2 requires 2 channels on logger. |
Please ask... |
$ |
| Combined temperature-humidity |
HT1 |
Essentially a combination of TA1 and HU1. Note that HT1 requires 2 channels on logger. |
Please ask... |
$ |
| Barometric pressure |
BP1 |
Barometric pressure sensor (temperature-compensated silicon strain gauge absolute pressure transducer),
16-bit resolution (1 part in ~65,000) over range from 800 to 1,100 hPa for use at sea level (or larger range if requested).
Accuracy generally ±1 hPa at 25°C. Operates from -20 to 60°C and 0 to 100% humidity (though ranges can be customised).
Alternative units include millibars and inches of mercury. Designed to be mounted vertically in sensor shelter
or standard Stevenson screen. Output in μSmart serial data (ASCII) format,
and optionally as voltage, frequency or current as well. |
PDF:77KB |
$ |
| Altimeter |
AL1 |
Please ask... |
Please ask... |
$ |
| Solar radiation |
SR2 |
Solar radiation sensor (short wave "global" spectrum, from 400 to 950 nanometres wavelength, using photovoltaic cell with shaped teflon cap),
16-bit resolution (1 part in ~65,000) over range from 0 to 2,000 W/m2.
Accuracy generally ±5% of maximum. Operates from -20 to 50°C and 0 to 100% humidity (though ranges can be customised).
Includes cosine correction, with accuracy to within 2% of theoretical spectral curve.
Designed to be mounted vertically and free from shadow, on a standard mount
or on a pipe using a ½ inch BSP adapter. Output in μSmart serial data (ASCII) format,
and optionally as voltage, frequency or current as well. |
PDF:82KB |
$ |
| " |
Various |
Other models include a pyranometer, and so-called primary and secondarry standards which measure a much wider spectrum, from 300 to 3,000 nm. All are μSmart enabled. |
Please ask... |
Please ask... |
| Anemometer (wind speed) |
AN2 |
Long arm anemometer, using contactless induction device,
16-bit resolution (1 part in ~65,000) over range from 0 to 200 km/h wind speed (~55 m/s).
Accuracy generally ±2%. Operates from 0 to 100% humidity, from -20 to 60°C when heated, and from 1 to 60°C without heating.
Designed to be mounted on a standard cross arm
although a ½ inch BSP adapter and a 10 mm bolt fitting are also available. Output in μSmart serial data (ASCII) format,
and optionally as voltage, frequency or current as well. |
PDF:76KB |
$ |
| " |
AN3 |
Like AN2, but short arm. Designed for more windy conditions. |
" |
$ |
| " |
AN4 |
Like AN2, long arm, but also reporting the standard deviation of wind speed
continuously to a second logger channel. |
" |
$ |
| " |
AN5 |
Like AN3, short arm, but also reporting the standard deviation of wind speed
continuously to a second logger channel. |
" |
$ |
| Vertical wind speed |
AN7 |
Vertical anemometer, using contactless induction device and 3-bladed aluminium propellor,
16-bit resolution (1 part in ~65,000) over range from 0 to 35 m/s, bi-directional.
Accuracy generally ±2%. Operates from 0 to 100% humidity, from -20 to 60°C when heated, and from 1 to 60°C without heating.
Designed to be mounted on a standard cross arm
although a ½ inch BSP adapter and a 10 mm bolt fitting are also available. Output in μSmart serial data (ASCII) format,
and optionally as voltage, frequency or current as well. |
PDF:72KB |
$ |
| Wind direction |
WD2 |
Wind direction sensor, using a continuous rotation microprocessor-controlled position sensor,
16-bit resolution (1 part in ~65,000) over range from 0 to 360 degrees, giving less than 1 minute or arc resolution,
in winds from 0 to 75 m/s (approx. 270 km/h). Output is the direction of wind, in degrees, and also a 24-hour standard
deviation of direction. No dead band.
Accuracy better than ±0.5 degrees. Operates from 0 to 100% humidity, from -20 to 60°C when heated,
and from 1 to 60°C without heating.
Designed to be mounted on a standard cross arm
although a ½ inch BSP adapter and a 10 mm bolt fitting are also available. Output in μSmart serial data (ASCII) format,
and optionally as voltage, frequency or current as well. |
PDF:82KB |
$ |
| " |
WD3 |
Like WD2, but output is the sine and cosine of the wind direction, and also a 24-hour standard deviation.
This requires 2 separate logger channels. |
" |
$ |
| " |
WD4 |
Like WD3, but output is wind direction in degrees and also the standard deviation of wind direction
over a pre-selected time interval (e.g. 5 minutes). This requires 2 separate logger channels. |
" |
$ |
| Rain gauge (pluviometer) |
RG1 |
Tipping bucket raing gauge, calibrated to measure 1 mm of rainfall per tip. Accuracy ±2% to 125 mm/h,
±3% to 250 mm/h and ±4% to 375 mm/h rainfall rates. Capable of measuring up to 720 mm/h. Operates from 0 to 100% humidity, and from 1 to 60°C without heating.
Three pre-drilled mounting brackets are incorporated into the base of the gauge, designed for 9 mm bolts. A level
bubble is also included. Output for μSmart loggers, but also available with simple voltage pulse. |
PDF:25KB |
$ |
| " |
RG2 |
Like RG1, but with much greater sensitivity, measuring 0.2 mm per tip. Recommended where high accuracy is required,
and where rainfall intensity is not too high. |
" |
$ |
| " |
RG5 |
Like RG1, but measuring 0.5 mm per tip. This rain gauge is recommended for most purposes. |
" |
$ |
| " |
Various |
Each of the above three rain gauges is available without the μSmart capability, and conversely, a μSmart adapter
is available for conventional (third party) reed switch type rain gauges. Each gauge can also be supplied connected to a pump controller. |
- |
Please ask... |
| Evaporation pan |
EV3 |
Standard Class A evaporation pan, manual fill. Supplied with a WL7 water level gauge to measure water remaining in the pan,
16-bit resolution (1 part in ~65,000) over range from 0 to 200 mm.
Accuracy ±0.1%.
Output in μSmart serial data (ASCII) format,
and optionally as voltage and frequency as well. |
PDF:42KB |
$ |
| " |
EV4 |
Like EV3, but auto-filling. |
" |
$ |
| " |
Various |
The above evaporation pans, manual and automatic, are also available as EV1 and EV2, respectively,
bundled with a μSmart logger. |
- |
Please ask... |
| Leaf wetness |
LW2 |
Simple sensor to measure leaf wetness, μSmart enabled. |
- |
$ |
| Rain detection |
RD1 |
Simple sensor to detect rain, μSmart enabled. |
- |
$ |
| Soil moisture |
SM1 |
Soil moisture sensor, with a single gypsum block, 2 m of cable from sensor to block, and 4 m of cable on sensor. Single channel. |
- |
$ |
| " |
Various |
Other soil moisture sensors are available, with multiple gypsum blocks connected to the same sensor. Also a "gropoint" sensor, with μSmart interface. Please ask... |
- |
Please ask... |
| Sap flow |
Various |
A range of sensors is available for measuring sap flow velocity. Please ask... |
- |
Please ask... |
| Water level |
WL1 |
Passive pressure water level sensor, 16-bit resolution (1 part in ~65,000) over the range 0 to 1 m. Output for μSmart loggers,
but also available with other outputs. |
- |
$ |
| " |
WL2 |
Same as WL1, but range 0 to 5 m. |
- |
$ |
| " |
WL3 |
Same as WL1, but range 0 to 10 m. |
- |
$ |
| " |
WL4 |
Same as WL1, but range 0 to 20 m. |
- |
$ |
| " |
WL5 |
Same as WL1, but range 0 to 50 m. |
- |
$ |
| Electrical conductivity (EC) |
EC1 |
Temperature-compensated electrical conductivity sensor, 16-bit resolution (1 part in ~65,000) over
the range 0 to 1,000 μS/cm. (Electrical conductivity is
often measured in microSiemens
per centimetre, and can be correlated with total dissolved salts (TDS) or "salinity" in mg/L). |
- |
$ |
| " |
EC2 |
Like EC1, but for 0 to 2,000 μS/cm. |
- |
$ |
| " |
EC3 |
Like EC1, but for 0 to 5,000 μS/cm. |
- |
$ |
| " |
EC4 |
Like EC1, but for 0 to 10,000 μS/cm. |
- |
$ |
| " |
EC5 |
Like EC1, but for 0 to 20,000 μS/cm. |
- |
$ |
| " |
EC6 |
Like EC1, but for 0 to 50,000 μS/cm. |
- |
$ |
| " |
EC7 |
Like EC1, but for 0 to 100,000 μS/cm. |
- |
$ |
| " |
Various |
Sensors can be (and have been) developed and calibrated for even higher ranges of EC. |
- |
Please ask... |
| pH |
PH1 |
pH sensor, 16-bit resolution (1 part in ~65,000) over
the range pH 4 to 10. |
- |
$ |
| " |
PH2 |
Like PH1, but for pH 2 to 12. |
- |
$ |
| " |
PH3 |
Like PH1, but for pH 0 to 14. |
- |
$ |
| Eh (redox potential) |
RO1 |
Redox sensor. Please ask... |
- |
$ |
| Dissolved oxygen |
DO2 |
Dissolved oxygen field probe, with stirrer. Please ask... |
- |
$ |
| Ion selective electrode |
ISE1 |
Sensor for the measurement of specific ions in solution. Please ask... |
- |
$ |
| Turbidity |
Various |
A number of turbidity sensors are available, with ranges from 0 to 100, 400 or 1000 NTU. |
- |
Please ask... |
| Flow |
FL1 |
Flow sensor, propellor type, for measurement of velocity of flowing water. Compatible with μSmart loggers. |
- |
$ |
| " |
FL2 |
Flow sensor, impeller type, for measurement of velocity of flowing water. Compatible with μSmart loggers. |
- |
$ |
Gaseous concentrations |
Various |
Various sensors to measure gaseous concentrations of oxygen, hydrogen, chlorine, carbon monoxide, carbon dioxide, nitric oxide,
nitrogen dioxide, hydrogen sulphide, sulphur dioxide, hydrogen chloride, ethylene oxide and ozone. Please ask for specifications. |
- |
Please ask... |
If you have any comments or questions, or would like to request a formal quotation, please ask.
