All Products
Rainbow LED Pack
Rainbow LED PackA rainbow of colors in nine clear 5 mm LEDs and one white 10 mm LED. These are standard, super-bright LEDs. You can use them with a 3 V power supply or in series with a resistor and a 5 V power supply.
Rapitest soil test kit pH-NPK
Rapitest soil test kit pH-NPKSimple soil test set with coarse scale for examining soil pH as well as the content of nitrogen (nitrate), phosphate and potassium.
Ratio of Specific Heat Experiment
Ratio of Specific Heat ExperimentThe complete solution for determining the ratio of specific heat capacities for air by measuring the period of oscillation of the piston in a cylinder filled with air.
Ratio of Specific Heats – Wireless
Ratio of Specific Heats – WirelessIn this experiment, the ratio of specific heat capacities for air is determined using Ruchardt’s method of measuring the period of oscillation of the piston in a cylinder filled with air.
Ray Optics Kit
Ray Optics KitA basic set of lenses and mirrors for ray and color experiments.
Ray Optics Laser System
Ray Optics Laser SystemDesigned for simple and clear demonstrations of geometric optics principles. A complete system for a very large number of experiments.
RC Circuit Experiment
RC Circuit ExperimentStudent experiment building relationship between charging and discharging rates and simple circuits.
RCCB Demo
RCCB DemoThis apparatus is a companion to the Circuit Breaker Demonstration LA10-170A
It shows all the working parts of a modern RCCB type fuse as used in domestic consumer units. The apparatus is contained within a robust plastic tray with protective acrylic cover and includes a clear circuit layout on the main panel.
Reaction Timer
Reaction TimerFor use with Lascells timers. The subject presses the START button and after a short random delay the light comes on. The subject has to press the button as quickly as they can in response. The timer records the interval between the light coming on and the button being pressed. No power supply required.
Realbug Insect Foes Resin Block Set
Realbug Insect Foes Resin Block SetPreserved insects in resin material.
Realbug Insect Orders Resin Block Set
Realbug Insect Orders Resin Block SetPreserved insects in resin material.
Rechargeable AA Batteries (Set of 4)
Rechargeable AA Batteries (Set of 4)A set of four rechargeable, high capacity Ni-MH AA size batteries.
Rechargeable Battery, Xplorer GLX
Rechargeable Battery, Xplorer GLXReplacement battery for the Xplorer GLX (PS-2002).
Red Diode Laser
Red Diode LaserDesigned to be used with Basic Optics System allowing students to explore interference patterns.
Red Diode Laser Pointer
Red Diode Laser PointerAn inexpensive, easy-to-use light beam for a multitude of demonstrations and experiments in optics.
Red Smart Cart Demonstration Kit
Red Smart Cart Demonstration KitThe Red Smart Cart Demonstration Kit comes with a Red Smart Cart and all the accessories you need to perform amazing physics demonstrations in kinematics and dynamics.
Reflection and Refraction
Reflection and RefractionStudent experiment exploring Snell’s Law and the Law of Reflection.
Reflective Infrared Sensor for Robots
Reflective Infrared Sensor for Robots
Refractometer, salinity
Refractometer, salinityThis saltwater refractometer is a high-quality instrument specially designed for accurate measurement of salt concentration in seawater.
