Technical specifications

The three tables below list the technical specifications for each of the MetroSperm components.

You can alternatively download the printer-friendly data sheet available at the downloads page.

MetroSperm Probe

Version MSCP 2.0
Dimensions Length: 181mm ; Diameter: 18mm
Weight 120g
Temperature range Operation temperature range: 10 – 40 ℃
Storage temperature range: -5 – 45 ℃
Power Powered via USB: 5Vdc <50mA
Connected via a special USB cable with a waterproof circular connector on the probe's end (IP67, when plugged) and a standard USB type-A plug on the other end.
Available in lengths of 80, 120 or 180cm.
Measuring range Boar sperm: 10 – 1000 million/millilitre
Accuracy Better than ±10% for regular boar semen without anomalies.
Resolution Better than 2% of concentration over the whole range.
e.g. <6 million/millilitre @ 300million/millilitre
Repeatability Better than ±2%
Min. sample volume At least ~40ml are needed to submerge the whole sensor cavity of the probe. It will depend on the shape of the beaker.
Light path length 10mm
Wavelengths 470nm (blue), 520nm (green), 640nm (red)

MetroSperm Host

Version MSCH 1.0.0
Dimensions 147mm x 94mm x 52mm
Weight 270g
Temperature range Operation temperature range: 0 – 40 ℃
Storage temperature range: -10 – 40 ℃
Power 2x AA NiMH Batteries 2200mAh, low self-discharge type.
Green/Red LED battery charge level indicator.
Internal battery charger powered by an external power supply unit, wall-plug type, with output of 9V, 6W and universal mains input of 90-264Vac, 47-63Hz , 2 pole Euro plug.
Plug adapters available on request.
Duty cycle Full batteries allow for more than 14h of continuous operation.
Charge cycle Full recharge of batteries in about 12 hours (overnight).
Display Alphanumeric LCD, 16 characters wide and two lines.
Input Five navigation buttons: up, down, left, right, centre.
Languages English, French, German or Spanish
Measurement Modes
Dilute&Doses:
Compute number of insemination doses that can be obtained and how much semen extender has to be added.
Concentration:
Measure number of sperm per dose or per millilitre.
Input parameters
Dilute&Doses:
Ejaculate volume, Volume of a dose, Sperm/dose, percentage of abnormal forms.
Concentration:
Volume of a dose, percentage of abnormal forms.