An increasing Range of Rotary Calculators have been developed for a Variety of Users, mainly medical.

They have a huge advantage over electronic calculators being
• Small with a Single application
• Give a good overview (eye-ball) &
• Very Quick to use: faster than electronic calculators !
• Fit in your pocket: 131 mm in diameter

All are made of high density plastic, durable and easy to read.
They are TOOLS, not the cardboard TOYS commonly used as give-aways
Generic versions or BESPOKE with logos etc.
Available individually or bulk to order

MODELS: over 70,000 units sold

PREGDISK Fertility: Ovulation Calculator available soon

OBD2 Traditional Pregnancy wheel for midwives & doctors to
calculate Due Date / EDD

OBD2~IA Popular double calculator with OBD2 and INFANT AGE

OBD2~BMI Double calculator with BMI on reverse side

OBD2s OBD2 but smaller at 100mm diameter

OBD3 OBD2 with third disc to demonstrate difference in
DD/EDD calculated from Last MP & UltraSound Scan

OBD2L Large (190mm) very easy to read version of OBD2 for Clinics etc

OBD~dob* Rapid calculation of patient’s AGE from date-of-birth

Other Applications can be designed & produced to Order
e.g. OBD~Cal* Rotary Calendar showing quick calculation in days or weeks to/from any date or deadline, Office/ personal use.

* Bulk orders only

LOGOS & text can be added to large orders

ORDERS
Individually 1-20 units
Jomoson4 and Nursesstore using the links above

Large/Bespoke :
Over 20 units from sales@obdisk.co.uk

RECENT Orders delivered to
OXFORD University for “INTERGROWTH21”.
A ten nation study of fetal & infant growth, where great accuracy is needed
National Teratology Service in Newcastle
UKTIS National Childbirth Trust
NHS Primary Care Trusts: Nottingham, Stockton,* Walsall, Tower Hamlets* etc

* = repeat order