Biology Sensors – Central Science Supplies

BIOLOGY SENSOR BUNDLE EXTENSION KIT

adminbenscience — Tue, 13 Oct 2026 17:34:13 +0000

Kit included the following sensors :
CO2 Gas sensor (High) BT25i
? Dissolved Oxygen sensor BT34i
? Oxygen Gas sensor BT59i
? Pressure sensor BT66i
? Spirometer BT82i
? Turbidity sensor BT88i

BASIC BIOLOGY SENSORS BUNDLE KIT

adminbenscience — Tue, 13 Oct 2026 17:33:17 +0000

kit includes the following :

CO2 Gas Sensor (Low) BT24i
ECG Sensor BT36i
Heart-rate Sensor 027i
Light Sensor BT50i
pH Sensor BT61i
and Electrode 031
Temperature Sensor BT01
Thermocouple 0135i
Relative Humidity Sensor BT72i
4 Sensor Cables BTsc_4

CO2 GAS SENSOR LOW RANGE

adminbenscience — Tue, 13 Oct 2026 17:17:40 +0000

The CO2 sensor BT24i is used to monitor low
concentrations of gaseous carbon dioxide.
The sensor uses the Non-Dispersive Infrared
Detection (NDIR) method.
Range: 0 .. 5000 ppm
Typical resolution: 20 ppm
Includes: 250-mL sampling bottle.
Can be used to:
? investigate CO2 level during respiration of
small animals and insects,
? monitor CO2 changes during
photorespiration and photosynthesis in
light/dark,
? measure CO2 level during cellular
respiration of peas or beans.

CO2 GAS SENSOR HIGH RANGE

adminbenscience — Tue, 13 Oct 2026 17:14:55 +0000

The CO2 sensor BT25i is used to monitor high
concentration of gaseous carbon dioxide.
The sensor uses the Non-Dispersive Infrared
Detection (NDIR) method.
Range: 0 .. 100000 ppm
Typical resolution: 1000 ppm
Includes: 250-mL sampling bottle.
Can be used to:
? investigate CO2 levels of human breath,
? monitor production of CO2 during chemical
reactions,
? monitor production of CO2 during
decomposition of organic materials in soils.

DISSOLVED OXYGEN SENSOR *

adminbenscience — Tue, 13 Oct 2026 17:14:06 +0000

The Dissolved Oxygen sensor BT34i can be used
to measure the concentration of dissolved
oxygen in water samples. The sensor is
automatically temperature compensated, using
a thermistor built into the sensor. Disposable
caps with pre-fit membranes allow you to
quickly and conveniently change membranes.
Range: 0 to 15 mg/L
Resolution (12-bit): 0.2 mg/L
Includes: replacement membrane cap, polishing
strip, oxygen probe electrolyte, filling pipette,
empty calibration bottle and Sodium Sulfite
Calibration Standard.
Can be used to:
? monitor dissolved oxygen concentration in an
aquatic systems, measure Biological Oxygen
Demand (B.O.D.) in water samples,
? determine the relationship between the
dissolved oxygen concentration and the
temperature of water.

FLOW RATE SENSOR *

adminbenscience — Tue, 13 Oct 2026 17:06:03 +0000

The Flow rate sensor 0387i measures the
velocity of flowing water. It can be used
to study the discharge, flow patterns, and
sediment transport of flowing water. The
Flow rate sensor is equipped with impeller
rod with 5-m cable.
Range: 0 .. 4.0 m/s
Resolution (12-bit): 0.005 m/s
Can be used to:
? measure stream flow rates,
? investigate sediment transport,
? determine stream discharge values

ECG SENSOR

adminbenscience — Tue, 13 Oct 2026 17:00:22 +0000

The ECG sensor BT36i measures voltages that
are produced by the heart. These voltages
are measured at the skin of the wrists and
elbow through electrodes. The voltages are
amplified by the sensor and filtered and
transferred through an optical coupler.
Range: 0 .. 5 mV
Resolution (12-bit): 1.2 ?V
Includes: a package of 100 electrode patches.
Can be used to:
? monitor ECG in rest and after mild exercise,
? investigate CG changes with mild
stimulants,
? record the electrical activity of a muscle
(EMG).

SPIROMETER SENSOR

adminbenscience — Tue, 13 Oct 2026 16:54:28 +0000

The Spirometer BT82i measures air flow
rate during human respiration. The sensor
consists of a flow tube through which the
air is inhaled and exhaled and a differential
pressure sensor.
Range: -5 .. 5 L/s
Resolution (12-bit): 0.01 L/s
Includes: disposable bacterial filter and 10
disposable mouthpieces.
Can be used to:
? record breathing patterns before, during
and after exercise,
? measure important lung capacities like
Forced Expiratory Volume, Forced Vital
Capacity and Tidal Volume.

BLOOD PRESSURE SENSOR

adminbenscience — Tue, 13 Oct 2026 16:52:07 +0000

The Blood Pressure sensor 0377i is used to
measure arterial blood pressure in humans
(non-invasively). It measures the pressure
signal caused by the interaction between the
cuff and the blood flow through the brachial
artery.
Range: 20 .. 250 mm Hg
Accuracy: 3 mmHg
Includes: standard adult size adjustable cuff
(27 cm to 39 cm) and bulb pump (with release
valve).
Can be used to:
? blood pressure as a vital sign
? effect of exercise on blood pressure.

EXERCISE HEART RATE SENSOR

adminbenscience — Tue, 13 Oct 2026 16:47:40 +0000

The Exercise Heart-rate sensor BT47i monitors
a person?s heart beat. Each time the heart
beats, an electrical signal is generated. This
signal is measured at the surface of the
skin by electrodes embedded in the chest
belt of the sensor. The system consists of a
transmitter belt, plug-in receiver, and an
elastic strap.
Transmitter: T31 by Polar Transmitter
Range: 90 cm
Can be used to:
? compare the heart rate of different
individuals,
? check the person?s heart rate before,
before, during and after a vigorous activity,
? monitor the recovery rate.

this discontinued and Replaced by new ESD50032