The Go Direct Potassium Ion-Selective Electrode BNC is a BNC-terminated electrode used to measure the concentration of potassium (K+) ions in aqueous samples. Requires a Go Direct™ Electrode Amplifier.
- Range (mV):
- Go Direct™ Electrode Amplifier: -1000 mV to +1000 mV
- Range (concentration): 90 to 39,000 mg/L (or ppm)
- Reproducibility (precision): ±30mV
- Interfering ions: Cs+, NH4+, H+, Ag+, Li+, Na+
- pH range: 2–12 (no pH compensation)
- Temperature range: 0–40°C (no temperature compensation)
- Electrode slope: 58 ±3 mV/decade at 25°C
- Electrode resistance: 100 to 200 kΩ
- Minimum sample size: must be submerged 2.8 cm (1.1 in)
- Go Direct Potassium Ion-Selective Electrode with BNC terminated end, packed with a storage bottle
- 30 mL bottle of High Standard solution with SDS (1000 mg/L K+)
- 30 mL bottle of Low Standard solution with SDS (10 mg/L K+)
- Short-Term ISE Soaking Bottle
The Barometer can be used to measure and monitor atmospheric pressure. It works well for conducting weather studies or experiments that involve pressures close to normal atmospheric pressure. It can also be used as an altimeter if you have a portable interface.£93.00 ex VAT | £111.60 Inc VAT Add to basket
The Instrumentation Amplifier monitors voltages from 20 mV to 1 V (DC or AC). It has several switch settings to allow you to select the best gain and includes auto-ID functionality for each of the six ranges. Input bandwidth of 10 kHz allows the capture of higher frequency signals. It is typically used to amplify the chart recorder or analog output of any instrument, such as a third-party gas chromatograph.£103.00 ex VAT | £123.60 Inc VAT Add to basket
Designed for much higher forces than the Dual-Range Force Sensor, the Force Plate can measure the forces developed during stepping, jumping, and other human-scale actions. For example, you can perform the following kinds of experiments:£376.00 ex VAT | £451.20 Inc VAT Add to basket
- Observe the change in normal force during a ride in a lift.
- Measure the impulse delivered by the floor during a jump.
- Measure the reaction force as a student leans against a wall.
The Vernier Energy Sensor offers an easy way to quantify voltage, current, power, and energy output of small wind turbines and solar panels such as those used in our KidWind Experiment Kits. Simply connect a source such as a small wind turbine or solar panel to one side and a load such as the Variable Load or a resistor on the Vernier Resistor Board to the other side. The Energy Sensor measures the current and voltage of the system. Data-collection and analysis software, such as Logger Pro or LabQuest App can then calculate the power and energy output.£115.00 ex VAT | £138.00 Inc VAT Add to basket
The Colorimeter is great for Beer's law experiments, determining the concentration of unknown solutions, or studying changes in concentration vs. time. This 4-wavelength Colorimeter measures the amount of light transmitted through a sample at a user-selectable wavelength in order to determine the concentration of a solution. Features such as automatic sensor identification and one-step calibration make this sensor easy to use. Fifteen 3.5 mL cuvettes are included. A package of 100 replacement cuvettes (with 20 lids) is available please click here£155.00 ex VAT | £186.00 Inc VAT Add to basket
The Mini GC Plus has been replaced by the Go Direct Mini GC.The Mini GC Plus is a portable instrument for separating, analyzing, and identifying substances contained in a volatile liquid or gaseous sample. The Mini GC uses Air as its carrier gas so no external gas cylinders required.
The Polarimeter can be used to measure chiral properties of optically active samples without chemically modifying or destroying the sample. This is a vertical polarimeter that uses a 589 nm LED, a fixed polarizer, and a manually rotated polarizer to detect changes in rotation of plane-polarized light in the presence of an optically active compound. Used with Vernier technology, students no longer have to determine the optical maximum with their eye but have a graph that shows a clear change in the light's polarization.£649.00 ex VAT | £778.80 Inc VAT Add to basket
Our Hand-Grip Heart Rate Monitor is ideal for determining a person's heart rate while mobile or stationary. With this sensor, heart rate can be monitored during, or after, exercise. The sensor consists of wireless hand grips and a receiver module that plugs into any of our data-collection devices. The hand grips sense the electrical signals generated by the heart. For each pulse detected, a signal is transmitted to the receiver module, and the individual's pulse rate is calculated. Do you need an interface? Why not go for our Heart Rate Human Physiology Kit?£155.00 ex VAT | £186.00 Inc VAT Add to basket
The CO2 Gas Sensor measures gaseous carbon dioxide levels in two selectable ranges of 0 to 10,000 ppm and 0 to 100,000 ppm (which covers human breath). Ideal for measuring changes in Carbon Dioxide levels during plant photosynthesis and respiration. You can easily monitor changes in CO2 levels occurring in respiration of organisms as small as crickets or beans! The CO2 Gas Sensor is easily calibrated using a calibration button. A chamber is included for running controlled experiments with small plants and animals. You may also wish to see our O2 Gas Sensor£350.00 ex VAT | £420.00 Inc VAT Add to basket
The Vernier Optical DO Probe uses luminescent technology to provide fast, easy, and accurate results, making it a terrific choice for biology, ecology, or environmental science courses. Students can measure dissolved oxygen concentration in surface water or to perform a wide variety of experiments to determine changes in dissolved oxygen levels, one of the primary indicators of the quality of an aquatic environment. Using Plug and play technology, no filling solution is required, no warm up time needed, no stirring and no calibration.£389.00 ex VAT | £466.80 Inc VAT Add to basket
Our strain-gauge based isometric Hand Dynamometer can be used to measure grip strength, pinch strength, and to perform muscle fatigue studies. Use the hand dynamometer with other sensors (e.g., EKG Sensor) to study muscular health and activity£144.00 ex VAT | £172.80 Inc VAT Add to basket
The Vernier Go Wireless Exercise Heart Rate is an excellent hands-free option for continuously monitoring heart rate before, during, and after exercise or while a person is stationary. Using the chest strap, data are wirelessly transmitted to iPad, LabQuest 2, or other mobile devices that are Bluetooth® Smart Ready. It displays live heart readouts before data collection,and is ideal for running, cycling and other physical activities. For an option to monitor heart rate with hands, please consider the Go Wireless Heart Rate.£103.00 ex VAT | £123.60 Inc VAT Add to basket