B2B

Pack of 4 x Virtuoso HD Standard Cartridges: 1 x Cyan 29ml 1 x Yellow 29ml 1 x Magenta 29ml 1 x Black 42ml

Low cost momentary (non-locking) action panel mounting push to make switches. Supplied with fixing nut & washer 7mm cut out. External Diameter:10mm External Length / Height:28mm

Evo-Stik rapid set syringe application. 25ml.

Great roundness and consistency, PLA is Poly-Lactic-Acid, a biodegradable polymer that has a low melting point. It is an amazing material to print with and you can print at very high speeds when using this material.Ultimaker filaments have endlessly been tested to ensure they are up to the job: only the best make the grade. Prints come as intended time and time again.Ultimaker PLA is really easy to print with, it's reliable, gives good surface quality and it's made from renewable sources, so it's biodegradable too. It also works perfectly with Cura material profiles. • If you want to easily achieve high resolution prints • Printing concept models and prototypes when aesthetics and fine details are key • When you're casting metal parts through lost PLA casting • It's perfect for printing in education or in the office, thanks to low ultrafine particle emissions • A heated bed isn't necessary, it works with glue and blue tape as well • PLA isn't suitable for medium temperature applications (50°C +) or long term outdoor usage. ABS is a better material for high temperature applications and CPE for outdoor usage.

Standard brushes are a better quality and are sold singly. Economy brushes are mixed bristle, and are sold in dozens.

Twin-thread silver zinc-plated countersink PZD screws. Sizes: 5/8"" x 4, 3/4"" x 4, 1"" x 6, 1-1/4"" x 6, 1"" x 8, 1-1/4"" x 8, 1-1/2"" x 8, 1-1/2"" x 10, 2"" x 10, 2-1/2"" x 10, 3"" x 10. 780pce (approx).

Pan head self-tapping Pozidriv screws. Sizes: 3/8"" x 6, 1/2"" x 6, 3/4"" x 6, 5/8"" x 8, 3/4"" x 8, 1"" x 8, 1 1/4"" x 8, 1/2"" x 10, 3/4"" x 10, 1"" x 10 and 1 1/4"" x 10.

Specially made for dowel joints, the flutes allow air to escape and the glue to flow evenly. Specifications: Diameter - 6mm Length - 30mm

Joyusing V500S Visualiser

PIECE one has been manufactured from a flexible plastic that allows them to remain lightweight for easy transportation. Set comes with carrying device manufactured from a druable metal and making for compact storage.

Suitable for use on both grass and 3G Pitches. 390-430 grams. Designed specifically for education the economical training ball designed to allow tPIECEers to deliver their PE lessons across all ages of schools using a ball that is designed to last, at exceptional value.

• Perfect way to get started with programming and hardware interaction • No soldering required • All parts are included to build 6 projects • Small prototype breadboard included • Projects: Dice, Buzzer, Theremin, Miniature Steady Hand Game, Fruit Keyboard, Traffic Lights Kit contains: 1 x micro:bit, 1 x piezo buzzer, 1 x 170 pin breadboard, 1 x 10mm red LED, 1 x 10mm yellow LED, 1 x 10mm green LED, 1 x battery case with AAA batteries, 1 x set of crocodile clip wires and 0.5mm micro USB cable

Simultaneously displays dissolved oxygen and temperature. Units of measure are saturation mg/L or ppm for dissolved oxygen and °C or °F for temperature. Advanced features include data hold 25 points memory auto power off automatic temperature compensation salinity and altitude compensation. Careful use and maintenance will provide years of reliable service. Easy to replace screw on membrane cap with optional extension cables. • Oxygen level displayed as Saturation or Concentration (mg/L [ppm]). • Adjustable Altitude Compensation (0 to 20,000 ft in 1,000 ft increments) • Adjustable Salinity Compensation from 0 to 50 ppt • Analogue bar graph indicates trends • Memory stores up to 25 data sets with DO and Temperature readings • Self calibration on power up • Data Hold, Auto power off, Low battery indicator • Waterproof to IP57 • Optional 1 m or 5 m extension cable • Complete with DO electrode, protective sensor cap, spare membrane cap, electrolyte and four 1.5 V batteries.

Detects Nitrate at 0, 10, 25, 50, 100, 250, 500 ppm. Supplied in vial of 50 strips.

A unique design feature gives direct reading of wind speed without the need to count revolutions. The low and high calibrations register m/s and the Beaufort scale. Can be hand held or fixed permanently.

This multifunction meter measures number of environmental conditions, as well as wide range of electronics measurement, making it an excellent general purpose meter for school science departments. Featuring auto-range, data hold, relative measurement, backlight, auto power-off, and IEC1010 CatII 1000 V Conformity. • DC voltage: 0.4 V/4 V/40 V/400 V/600 ±0.7 % • AC voltage: 4 V/40 V/400 V/600 ±0.8 % • DC current: 40 mA/400 mA ±1.2 %, 10 A ±2.0 % • AC current: 40 mA/400 mA ±1.5 %, 10 A ±3.0 % • Resistance: 400 R/4 k/40 k/400 k/4 M ±1.2 %, 40 ±2.0 % • Capacitance: 4 nF/40 nF/400 nF/4 μF/40 μF/200 μF ±3.0 % • Frequency: 10 R/100 R/1 k/10 k/100 kHz ±2.0 % • Duty cycle: 0.1 ~ 99.9 ±3.0 % • Temperature: -20 °C 400 °C ±3.0 (0.1 °C), 400 °C 1000 °C ±3.0 (1 °C) • Humidity: 30 % ~ 95 % RH ±5.0 %RH • Light: 4000 lux/40000 lux ±5.0 % • Sound level: 35 - 100 dB ±4 dB • Continuity test • Power: 9 V (6F22) x1 • Size: 185 x 85 x 44 mm

A combined temperature and humidity meter ideal for environmental monitoring. The large LCD is easy to read at distance. Simultaneous display of humidity in RH and temperature in °C or °F; 63 x 80 mm large digit LCD; Min/max memory since last reset; Impact-resistant ABS case with desk stands and wall mounting; Supplied with battery. Dimensions (L x W x D): 138 x 95 x 20 mm. • Temp range: -10°C to +50°C • Humidity Range: 25% to 98% RH • Resolution: 0.1°C, 1% RH • Power: x 1.5V AA battery (supplied); • Weight: 143g

Though the use of blood type in forensic investigation is not enough to prove guilt, it may aid in exonerating potential suspect. In this activity, students act as lab technicians and assist investigators by examining evidence collected at crime scene. Students first use a presumptive blood test to determine if a substance on a stained piece of cloth may be blood, and then determine the blood type of a sample collected at the scene. Students then compare their results to those of samples provided from two suspects. Kit contains enough materials for 10 groups. Teacher's Manual and Student Study Guide copymasters are included. Kit includes: • 40 Blood typing trays • 10 Cotton swabs • 1 Cloth • 1 bottle 70% ethanol • 1 bottle Blood detection reagent #1 • 1 bottle Blood detection reagent #2 • 4 Simulated blood samples: Victim, Suspect #1, Suspect #2, Crime Scene Evidence • 1 bottle Simulated anti-A serum • 1 bottle Simulated anti-B serum • 1 bottle Simulated anti-Rh serum

Blood typing is a method of classifying blood based on the presence or absence of specific proteins (erythrocytes), on the surface of red blood cells. Blood type, an inherited characteristic, is valuable to know in that it affects medical procedures, such as surgery and transfusions, paternity testing, as well as serving as evidence in criminal investigations. Determining blood type can help provide supporting evidence or eliminate a possible suspect's involvement in crime. This activity includes a teachers manual and a student guide and analysis copy-masters. There is enough material for 15 groups. Note: This activity uses Innovating Science Simulated Blood and is safe for classroom use. Kit Contents: • Blood typing trays • 4 Simulated blood samples: Victim, Suspect #1, Suspect #2, Crime scene • 1 set ABO/Rh blood typing anti-sera • 1 pack mixing sticks

Crime scene investigators examine the scene of possible violent crime for evidence, such as fingerprints, hair, fibre, etc. After collecting the evidence, they notice there is no visible blood. Someone sprays the area with a liquid then turns out the lights. A strange, faint glow appears in certain areas of the scene. Learn how Luminol is used in scenes like this everyday. The special Luminol formulation does not require a separate hydrogen peroxide catalyst. Simply re-hydrate and use with the simulated blood haemoglobin to show your class. This activity includes an instruction manual with suggested activities. There is enough material for several demonstrations. Kit Contents: • 1 bottle Luminol • Re-hydrating Solution • 1 bottle Luminol powder • 1 bottle simulated blood haemoglobin

ABO typing of blood left at the scene of crime can help to narrow down a list of suspects. In this experiment your students will use agglutination to identify the blood group of unknown blood samples as a step to identify a criminal. Kit Includes: instructions, control ABO simulated blood samples, unknown simulated blood samples, transfer pipettes, microtitre plate. All You Need: automatic micropipette (5-50 µL) with tips (optional). For 10 Lab Groups. Complete in 45 minutes.

High quality, non-adhesive plastic tape printed with the words 'CRIME SCENE DO NOT ENTER'. This tape is ideal for crime scene protection or other areas where forensic work needs to be carried out or is still ongoing. Simply unroll the plastic tape and it can then be tacked, stapled, wrapped or tied around suitable objects to create an instant and highly visible barrier. Dimensions (W x L): 75 mm x 100 metres.

Disposable protective suits suitable for forensics work. Size large. Sold individually.

Disposable, blue PVC over-shoes, to protect feet and help prevent cross contamination. Supplied as pack of 10.

Correctly packaged evidence is essential if reliable scientific results are to be obtained. Preserving the chain of custody is important because it maintains the integrity of the evidence. Whenever person comes in contact with piece of evidence, the contact must be documented to prove that the evidence was always accounted for and that no one tampered with it. These specially manufactured bags have many tamper-evident features, including unique bag number and printed label. These bags also have the added benefit of being leakproof.

These plain inch (15 cm) sterile dry swabs on plastic shafts, for specimen/evidence collection, come labelled for inclusion of details such as date, site and time references. Each swab comes in its own polypropylene tube for transport back to the laboratory. Sold as pack of 10 DNA-free swabs, each in its own tube.

An ultra violet 'security' type pen where the ink is invisible under normal light, but shows up under UV light.

These small economy pads leave crisp, clear imprint and dry almost instantly. Only slight residue is left on the fingers which can be removed by rubbing them together or wiping them with towel or cloth. These small pads will give you approximately 1000 individual inked impressions. Dimensions (Dia.): 50 mm.

Pre-cut, uniform quality lifting tape for the ultimate preservation of latent fingerprints, ready cut for convenience. It will conform and stretch and allow fingerprints to be lifted from doorknobs, wooden surfaces, light bulbs etc. Supplied with protective backing sheet. Dimensions (L xW): 120 x 65 mm.

A high quality, dome headed, hand made brush, manufactured by blending up-to-date technology with traditionally crafted skills. These brushes permit even the faintest print to be developed with minimal distortion. Made with soft pony hair, this is a very popular and also economical, fingerprint brush. Each brush is supplied in a clear plastic tube to assist storage and avoid damage to bristles.

A very useful kit designed for students investigating fingerprinting, easily adaptable to suit your needs and lesson plans. Including an information booklet explaining fingerprinting and instructions for use. Kit Contents: • user manual and carry case • Fingerprint powders (4 magnetic, fluorescent and white) • 12 hinge lifters (4 of each black, white and clear) • magnetic wand • fingerprint brushes • 1 pair of protective gloves • protective apron • protective face mask.

Evidence left behind at a crime scene can identify a potential culprit. Even in this age of DNA, fingerprints and blood stains are still important at helping to identify a criminal. In this experiment, your students will solve crime by dusting for fingerprints and use fluorescent dust (not included) to search for and identify trace amounts of blood. Kit Contents: • instructions • brushes • magnifying lens • fingerprint cards • black dusting powder • fingerprint lifters All you need: alcohol, fluorescent dust, and long wave U.V. light. For 10 lab groups. Complete in 50 minutes.

Quartz, battery operated with sweep second hand.

Ideal for storing irregularly shaped items securely, this Gratnells trays insert has scored squares, which can be removed to form the shape required.

Shallow Gratnells Tray. 427 x 312 x 75 mm (L x W x D)

Shallow Gratnells tray. 427 x 312 x 75 mm (L x W x D)

Shallow Gratnells Tray. 427 x 312 x 75 mm (L x W x D)

Shallow Gratnells tray. 427 x 312 x 75 mm (L x W x D)

Shallow Gratnells tray. 427 x 312 x 75 mm (L x W x D)

Shallow Gratnells tray. 427 x 312 x 75 mm (L x W x D)

Shallow Gratnells Tray. 427 x 312 x 75 mm (L x W x D)

Shallow Gratnells Tray. 427 x 312 x 75 mm (L x W x D)

Shallow Gratnells Tray. 427 x 312 x 75 mm (L x W x D)

Shallow Gratnells Tray. 427 x 312 x 75 mm (L x W x D)

Shallow Gratnells Tray. 427 x 312 x 75 mm (L x W x D)

Deep Gratnells tray. 427 x 312 x 150 mm (L x W x D)

Deep Gratnells tray. 427 x 312 x 150 mm (L x W x D)

Deep Gratnells tray. 427 x 312 x 150 mm (L x W x D)

Deep Gratnells tray. 427 x 312 x 150 mm (L x W x D)

Deep Gratnells tray. 427 x 312 x 150 mm (L x W x D)