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 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.£708.00 ex VAT | £849.60 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:£386.00 ex VAT | £463.20 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 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.£476.00 ex VAT | £571.20 Inc VAT Add to basket
Use the High Current Sensor in experiments that involve currents larger than 1 A, such as solar panels, hand generators, and other alternative energy projects. The High Current Sensor has a range of ±10 A. Current is measured with a Hall Effect sensor, which uses the magnetic field created by the current and therefore does not add a resistive element to the circuit. A metal shield over the Hall Effect chip reduces the influence of external magnets. A replaceable fuse protects the equipment and circuit£115.00 ex VAT | £138.00 Inc VAT Add to basket
The EKG Sensor measures electrical signals produced during muscle contractions, and can be used to make standard 3-lead EKG tracings or surface EMG recordings. The EKG Sensor measures electrical signals produced by the heart. It uses three disposable electrodes. An EKG graph is displayed, demonstrating to students the contraction and repolarization of the heart's chambers. A package of 100 disposable electrodes is included with the sensor.£231.00 ex VAT | £277.20 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£380.00 ex VAT | £456.00 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£165.00 ex VAT | £198.00 Inc VAT Add to basket
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.£102.00 ex VAT | £122.40 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?£167.00 ex VAT | £200.40 Inc VAT Add to basket