equipment purchase for scientific research , laying and jointing pvc pipe. heading , plant growth chamber: 1200 litres or above; temperature 50c to 400c ( light on ) with stability + / - 0.50c. 60% - 80% relative humidity with low energy ultrasonic humidity generator &capacitve humidity sensor; light intensity 600-1200mmol m2 s-1 with dimmable lighting intensity 10%-100%; shelving options up to three ( changeable ) ; user settable hi / low temperature alarms with remote contact audible & visual alarm indicators; interior with corrosion resistant stainless steel ans exterior painted, protected steel with a textured finish. easily movable with lockable castors. , cooling centrifuge: table top refrigerated micro-centrifugewithautoclavable 24 x 1.5 / 2 mlrotor or dual row 18x2 / 0.5ml rotor withclick sealbio-containmentlidforsuperiorsafety& higherlidfeature; temperature range 0-0 - 400c; rcf value should be 17000g or above. tme set 1-99min or above with 1min increment and hold. bright easy to read digital display for speed, time, temp. & rcf.maintenance free frequency controlled induction drive. very fast acceleration & deceleration around 12 sec.or lessshould beavailable.noise level should be not more than 50 dba ( refrigerated ) .quick run / pulse facility should be available. rotors should be autoclavable.csa or ce certified and iec 61010-1, iec 61010-2 compliant desirable. , pcr ( gradient ) : heating and cooling peltier technology, 96 well blocks. sample blocks should be made up of alloy with block ramp rate 60c or above and sample ramp rate 4.20c / sec or abpve, temp. accuracy ± 0.25oc; pcr volume range 10-1000c; power consumption 100–240 v, 50–60 hz, max. 700 w; internal 16 gb onboard memory having onboard capacity >1, 000 protocols save; minimum 6 temperature zones ( up to 10°c zone-to-zone ) with 30°c range across block. , hot water bath : temperature controlled stainless steel ( ss304 ) made scientific water bath with 10-12 ltr internal volume and auto cutoff; temperature range 5-900c having ±20c stability. power consumption not more than 1200w. ul, cul or ce certified thermostat is desirable.