Timstar - Science

Kevlar® ARACUT® knitted gloves offer resistance to and protection from cutting, along with protection from heat. The medium gauge offers excellent cutting resistance and outstanding protection against thermal hazards in dry atmosphere, along with good dexterity. They are ambidextrous and comfortable to wear and are of 100% Kevlar® seamless knitted design.

Seamless matt finish with excellent finger sensitivity. Fits either hand. Significantly stronger than latex and have superior resistance to oil/chemical permeation. Powder free. Supplied in pack of 100.

Seamless matt finish with excellent finger sensitivity. Fits either hand. Significantly stronger than latex and have superior resistance to oil/chemical permeation. Powder free. Supplied in pack of 100.

Seamless matt finish with excellent finger sensitivity. Fits either hand. Significantly stronger than latex and have superior resistance to oil/chemical permeation. Powder free. Supplied in pack of 100.

Seamless matt finish with excellent finger sensitivity. Fits either hand. Significantly stronger than latex and have superior resistance to oil/chemical permeation. Powder free. Supplied in pack of 100.

A flock lined blue nitrile glove with patterned fingers and palm. Nitrile gloves give good resistance to many solvents and oil based chemicals with excellent abrasion and puncture resistance. Dimensions (L): 330 mm.

Powder free vinyl disposable gloves which are latex free and fit either hand. Supplied in pack of 100.

Seamless matt finish. Pre-powdered for easy removal. Fits either hand. Good finger sensitivity. Supplied in pack of 100.

This robust Chemical Filtration Pump with PTFE diaphragm is a durable chemical resistant vacuum pump which is suitable for the following applications: vacuum filtration; desiccation; aspiration; degassing; other mid-range vacuum applications. It is ideal for both single funnel use and up to 6 holder manifold filtrations and suitable for organic and light acid/base (e.g. acetic acid solutions. The pump can also be used to pressurize up to 18 PSIG. Free air flow 31 l/min; Maximum vacuum 200 mbar. Please note this pump is not suitable for ""Bell in Jar"" experiments. Applications: • Filtration • Vacuum drying • Desiccators • Concentration • Suitable for basic and acid media Design Features: • PTFE wetted parts • Low noise emission • Direct drive • Continuous operation • No oil contamination • Low maintenance even in aggressive applications

Rotary vane high vacuum pump, oil sealed and ideally suited for use in education. This unit is relatively quiet in use, can be operated for long periods of time, is robust, and is engineered for school use. The large oil capacity of 350 mL provides for long operation between oil changes. An oil level sight glass is incorporated so that the oil can be monitored. •Model: Javac CC-31ED •Air displacement: 40 L/minute •Ultimate vacuum: 25 micron 8 mm rubber hose fitting •Dimensions (L x W x H): 330 x 135 x 255 mm •Weight: 9.8 kg

Diaphragm pump suitable for vacuum or pressure work. Housed in a splashproof polycarbonate case. Please note this pump is not suitable for ""Bell in Jar"" experiments. 5 L/min flow rate 0.7 bar pressure 4 mm inlet/outlet Conforms to IEC1010

The pump can be used to demonstrate the following: • Principle of siphon • Filtering using suction • Investigation of leaks in piping • Indirect transfer of liquid by means of negative pressure Please note this pump is not suitable for ""Bell in Jar"" experiments.

This Power Supply is suitable for wide variety of appliances which are powered by USB. UK mains plug with standard USB-A socket on top. V 2.1 DC output. • 5 V DC 2.1 (10.5 W) • RoHS compliant • CE marked

Car foot pump with 120 mm barrel and 450 mm hose with nylon connector and football inflator adapter. Complete with integral pressure gauge marked 0-100 p.s.i. and 0-7 kg/cm2 (7 bar).

Spare Black Terminals for Satz School Power Stations.

Spare red terminals for Satz School Power Stations.

Javac V100 vacuum pump oil.

This water still produces ready-to-use cold, distilled water. The high quality borosilicate glassware coupled with silica sheathed heaters gives pyrogen-free distillate of the highest purity from virtually any raw water supply. The boiler feed is pre-heated to increase efficiency. The unique condenser design ensures that the droplets of distilled water remain in contact with the cooling coil for the longest possible time ensuring maximum energy transfer. All-glass construction allows rapid descaling using strong mineral acids. built- in ""clean"" function and integral acid addition funnel make the cleaning operation simple and safe with no need to dismantle any of the glassware. large bore stopcock with PTFE key is fitted for easy draining of chemicals after cleaning. A flow sensing device prevents overheating, and allows the unit to run on water supplies with pressure as low as psi (20 kPa). Requires a minimum flow of 1 litre per minute. There is an over-temperature thermostat mounted in the boiling chamber as an additional fail-safe. The acrylic safety screen and the cabinet lid are removable giving easy access to the glassware components. Screw threads are incorporated on all water connections so hoses can be fitted and removed easily and safely without risk of breakage. The control is simple and effective system which can be fitted to virtually any type of reservoir vessel. It will turn the still off when the reservoir is full, and restart it when the level in the reservoir drops, making it fully automatic. • 4 litres per hour output • Highly efficient • Fully automatic • Built-in ""clean"" function • Wall mounting bracket included

Spare heater for the Distinction water still, WA17601.

An economically priced, wall mountable, all-glass water still, producing 4 litres per hour single distillate. With two independent safety thermostats, condenser, boiler, 3 kW sheathed heater and screw thread connections. Includes acid addition port and drain cock system for descaling the boiler. Dimensions 500 x 150 x 450 mm(W x D x H).

This battery has a 7 year shelf life and are suitable for high drain rate applications (although lithium cells may work better in some applications). It also has better low temperature performance than Zinc cells.

These batteries have 7 year shelf life and are suitable for high drain rate applications (although lithium cells may work better in some applications). They also have better low temperature performance than Zinc cells.

These batteries have 7 year shelf life and are suitable for high drain rate applications (although lithium cells may work better in some applications). They also have better low temperature performance than Zinc cells.

These batteries have 7 year shelf life and are suitable for high drain rate applications (although lithium cells may work better in some applications). They also have better low temperature performance than Zinc cells.

These batteries have 7 year shelf life and are suitable for high drain rate applications (although lithium cells may work better in some applications). They also have better low temperature performance than Zinc cells.

This battery has a 7 year shelf life and are suitable for high drain rate applications (although lithium cells may work better in some applications). It also has better low temperature performance than Zinc cells.

The SDS5032E is a general purpose 2 channel digital oscilloscope with large 200 mm colour display, making it ideal for education and industrial environments. Complete with USB output to PC. Specifications and Features: • Bandwidth: 30 MHz • Sample Rate (real time): 250 MSa/s (125 MSa/s per channel) • Memory depth: 10 KB • Maths functions: Add, subtract, multiply, division and FFT • 20 automatic measurements • Auto-scale function • Standard interface: USB, USB flash drive, LAN, VGA • Bandwidth: 30 MHz • Waveform storage: 15 waveforms • Vertical Sensitivity: 5 mV/div~10 V/div (at input) • Vertical resolution: 8 bit • Trigger Type: Edge, Pulse, Video, Slope • Trigger Mode: Auto, Normal, Single

Voltages of 0 to 30 V DC and 0 to 300 V DC at up to 60 mA. Outputs are fully floating to provide negative voltages if required and are taken from pairs of colour-coded 4 mm sockets on the front panel. Each output has a continuously variable voltage control, with electronic current limiting circuitry. An indication of the output voltage is given by a graduated scale on each voltage control. A pair of 4 mm sockets on the front panel provide 6.3 V AC at up to 2 A for filament heating. An illuminated on/off switch is mounted on the rear panel adjacent to a fused appliance inlet. Housed in a robust metal case with a durable powder coated finish. •DC Output Voltage Range No1: 0 to 30 V DC •DC Output Voltage Range No2: 0 to 300 V DC •Maximum DC Output Current: 60 mA (both ranges) •AC Output Voltage: 6.3 V AC •Maximum AC Output Current: 2 A

A high-quality simple-to-use student signal generator with a range of applications. Operated with just three buttons: Waveform, Frequency and Amplitude. There is a single output, provided with 4 mm safety sockets. The output can easily drive a speaker or vibrator with ample amplitude for resonance and diffraction experiments. The frequency range extends well beyond the audible range. The lowest frequencies are suitable for ""slow motion AC"" experiments. Unique frequency control The frequency is set with a speed-sensitive button. If you turn slowly, the last digit of the display is set. Turning faster, the response accelerates smoothly. The generator covers the six decades from 0.05 Hz to 50.00 kHz in a single range. The frequency is stable within 0.005 % Three waveforms The generator provides sine, triangle, or square wave signals. Distortion of the sine wave is less than 0.25 % in the audible range (20 Hz - 20 kHz) and remains below 1 % throughout the frequency range (0.05 Hz - 50 kHz). Built-in power amplifier The signal amplitude is continuously adjustable from 0 V to a peak voltage of 7.5 V (15 V p-p; 5.3 V RMS). More than 1 A peak current can be supplied. The output is overload protected. Supplied with 12 V power adapter.

This power supply delivers stabilised DC voltage, continuously adjustable between 0 and 6 kV. For safety, the current is limited by a built-in series resistance. The short-circuit current is 2 mA max. Under load, the voltmeter shows the actual supplied voltage. The power supply is also capable of delivering 6.3 V (max. 3 A) AC. This is the standard voltage for many electron tubes etc. On the front, you find a yellow/green ground socket, connected to the metal enclosure and hence (through the mains wire) to earth. The high voltage section floats relative to ground, allowing either the black (negative) socket or the red (positive) socket to be connected to ground, resulting in a voltage range of 0 to +6 kV resp. 0 to -6 kV relative to ground. Specifications •DC Voltage: 0 - 6 kV. Stabilised, continuously adjustable •Short-circuit current (max): 2 mA •Ripple and noise (max): 1% (RMS, 100 V - 6 kV) •Read-out precision: 1% + 1 digit •AC Voltage: 6.3 V •Current (max): 3 A

The perfect choice for experiments with, for example, electron beam tubes requiring voltages up to 500 V DC at a low current level. The unit also provides two auxiliary outputs: A continuously variable negative voltage (down to -50 V DC), series connected with the 500 V output, and a stepwise selectable AC voltage with galvanic isolation from the DC outputs. Continuous adjustment of the -50 V and 500 V voltages. The current is limited to 50 mA. Voltage and current can be read from separate displays. A switch selects which output to monitor. The AC output delivers up to 3 A and is provided with a thermo fuse. Note: Not recommended for students due to high output current. Specifications Negative DC voltage: 0 to -50 V Current (max): 50 mA Positive DC voltage: 0 to +500 V Current (max): 50 mA Ripple: less than 0.1% Regulation: Better than 1 % for variations in mains voltage and load up to 10 %. AC Voltage: 2 to 7 V (1 V steps) Current (max): 3 A

Continuously variable 0 to 20 V AC and full-wave rectified DC at maximum 6 A continuously or 8 A for short periods. Resettable thermal cut-out. Outputs from two pairs of colour-coded 4 mm sockets. Output voltage is indicated by means of a calibrated scale. An illuminated on/off switch is mounted on the rear panel adjacent to a fused IEC mains inlet. Enclosed in a robust metal case with a durable powder coated finish. •AC Output Voltage Range: 0 to 20 V AC •Maximum AC Output Current: 6 A (8 A short period of time) •DC Output Voltage Range: 0 to 20 V DC •Maximum DC Output Current: 6 A (8 A short period of time)

This power supply delivers stabilised DC, continuously adjustable from 0 to 12 V. It also supplies AC, selectable between 2, 4, 6 and 12 V. The AC voltage is not stabilised. Both outputs have overload protection. The DC channel is electronically protected and automatically reconnects while the AC channel has a circuit breaker which must be manually reconnected if it trips. Specifications •DC Output voltage: 0 - 12 V (stabilised) •Ripple and noise (max.): 100 mV •Output current (max.): 3 A •AC Output voltage: 2, 4, 6, 12 V •Output current (max.): 3 A

A simple, robust and reliable power supply, ideal for basic electricity experiments. It offers stepped adjustment of both AC and DC with 1 V between the steps. The DC voltage is not smoothed or stabilised, meaning there is a fluctuation of approx. 10% of the output voltage at step level. The unit is protected against overload with an automatic circuit breaker (the unit works again after about 10 seconds). DC voltage: 1 to 12 in 1 V steps Current: 6 A max AC voltage: 1 to 12 in 1 V steps Current: 6 A max

A low-cost alternative to dry cell batteries. Housed in a robust ABS plastic case, this power supply is ideally suited as a replacement in applications where batteries are normally used. Smoothed and regulated DC is available over those ranges selected by rotary switch. Output is via 4 mm red and black sockets. The DC output voltage available are 1.5, 3, 4.5 and 6 V DC at a maximum current of 1 A.

For watches, calculators etc.

For watches, calculators etc.

For watches, calculators etc.

For watches, calculators etc.

Test the condition of your batteries using this low-cost, versatile and compact battery tester. The tester uses the power of the battery you are testing to power itself, so does not require batteries. • Suitable for checking the state of Zinc chloride, Alkaline and Rechargeable batteries • Will test AAA, AA, C, D, 9V PP3 and batteries

Holds 4 x D (R20) batteries with outputs at 1.5, 3, 4.5 and 6 V. Batteries and leads not supplied. Each output has 4 mm socket.

Packs of 5.

Battery Holder, AA Size.

Battery holder, 2 x AA batteries, with leads.

Battery Holder D Size. Pack of 5.

PP3 snaps with leads. Pack of 10.

For watches, calculators etc.

For watches, calculators etc.

A highly versatile power supply for all low-voltage experiments, with continuous voltage adjustment, separate for DC and AC. The two outputs can be loaded simultaneously without interference. Four digital displays show DC and AC voltage and current. The continuously adjustable DC current limiter can be set using a screwdriver. There is an LED indicator to show when the selected maximum current is reached. The power supply also features electronic overload protection. Specifications DC Output voltage: 0-24 V (stabilised) Ripple and noise (max): 25 mVpp Output current (max): 10 A (0-12 V) Max output current falls linearly to 6 A at 24 V Electronic, continuously adjustable current limiter, adjusted with screwdriver AC Output voltage: 0-24 V (stabilised sine) Output current (max): 6 A Electronic current limiter

The Powerbase is ideal for use in physics, biology and chemistry experiments in secondary and sixth form schools. It comes with a sturdy, powder-coated steel case with fold flat carry handle making it easily stackable. A very popular power supply that has proven to last the rigours of daily use within schools with its tough construction and tamper proof fixings. •0-15 V AC and 0-20 V smoothed DC at up to 8 A •Combined Continuously variable output •Maximum voltage lock push button reset •Short circuit protection •Tough steel powder coated casing •Heavy-duty screw-in rubber feet •Stackable •Supplied with power lead •Designed and manufactured in the UK •5 Year Warranty