The Go Direct™ Calcium Ion-Selective Electrode BNC is a BNC-terminated electrode used to measure the concentration of calcium (Ca2+) ions in aqueous samples. Requires a Go Direct™ Electrode Amplifier.
- Range (mV):
- Go Direct™ Electrode Amplifier: -1000 mV to +1000 mV
- Range (concentration): 1 to 40,000 mg/L (or ppm)
- Reproducibility (precision): ±30mV
- Interfering ions: Pb2+, Hg2+, Si2+, Cu2+, Ni2+, NH3, Na+, Li+, K+, Ba2+, Zn2+, Mg2+
- pH range: 2–8 (no pH compensation)
- Temperature range: 0–40°C (no temperature compensation)
- Electrode slope: 26 ±2 mV/decade at 25°C
- Electrode resistance: 100 MΩ
- Minimum sample size: must be submerged 2.8 cm (1.1 in)
- Go Direct™ Calcium Ion-Selective Electrode with BNC terminated end, packed with a storage bottle
- 30 mL bottle of High Standard solution with SDS (1000 mg/L Ca2+)
- 30 mL bottle of Low Standard solution with SDS (10 mg/L Ca2+)
- Short-Term ISE Soaking Bottle
The Mini GC Plus has been replaced by the Go Direct Mini GC.The Mini GC Plus is a portable instrument for separating, analyzing, and identifying substances contained in a volatile liquid or gaseous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 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£384.00 ex VAT | £460.80 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:£389.00 ex VAT | £466.80 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.
This is basically three Low-g Accelerometers mounted at right angles and all placed in a small box. Can be used for studying the complex motion of an amusement park ride, a bungee jumper, or simply a toss in the air. Range: -50 to +50 m/s2 Typical accuracy: ±0.1 m/s2£137.00 ex VAT | £164.40 Inc VAT Add to basket
The Gas Pressure Sensor can be used to monitor pressure changes in a gas. The range is wide enough to perform Boyle's law yet it is sensitive enough to conduct vapor-pressure or pressure-temperature experiments. Biology teachers can use the Gas Pressure Sensor to monitor transpiration or respiration in an enclosed environment.£123.00 ex VAT | £147.60 Inc VAT Add to basket
The Flow Rate Sensor can be used for environmental or Earth science studies. Flow rate data can be used to calculate the discharge value for a stream or determine the sediment transport of a stream. The Flow Rate Sensor includes 3 riser rods, which enable the impeller to be placed at fixed depths, and is equipped with a 5 m cable so your data-collection equipment can stay on shore. The Flow Rate Sensor also separates into four sections for easy transport and convenient storage.£168.00 ex VAT | £201.60 Inc VAT Add to basket
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.£714.00 ex VAT | £856.80 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
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.£129.00 ex VAT | £154.80 Inc VAT Add to basket
The Digital Control Unit (DCU), combined with features in Logger Pro, makes control of electrical devices, such as buzzers, lights, motors, pumps, and relays, both straightforward and flexible. The DCU is a great way to introduce hands-on STEM and engineering projects.£84.00 ex VAT | £100.80 Inc VAT Add to basket
The Conductivity Probe determines the ionic content of an aqueous solution by measuring its conductivity. This has many applications in chemistry, biology, and environmental science. The Conductivity Probe has three ranges, providing optimal precision in any given range. Biology teachers can use this probe to demonstrate diffusion of ions through membranes. Chemistry students are able to quickly investigate the difference between ionic and molecular compounds, strong and weak acids, or ionic compounds that yield different ratios of ions. Environmental science students use it to measure TDS, total dissolved solids.£150.00 ex VAT | £180.00 Inc VAT Add to basket
Use the Ammonium ISE to measure levels of ammonium ions introduced from fertilizers. It can also indicate aqueous ammonia levels if sample solutions are acidified to convert NH3 to NH4+. The Ammonium ISE has a combination-style, non-refillable, gel-filled electrode. Like all other PVC ISE membranes, the membrane on the ISE has a limited life expectancy. However, the replaceable module of ISE allows you to simply discard the used membrane module, and replace it with a new one. Note: We recommend that you do not purchase ISE replacement modules too far in advance of their expected time of use as degradation occurs while they are stored on the shelf.£349.00 ex VAT | £418.80 Inc VAT Add to basket