It may take a little time to learn how to use it, but after a while you will master the art of interpretation. OvuPlan Scope requires only 15 to 20 minutes for the saliva sample to dry. Once dry, you just view the sample through the lens to determine the result. If saliva is not dry, you may need to leave it longer (up to 1 hour). Ideal for women with irregular cycles. Women with irregular periods can find it more difficult to determine ovulation using urine tests. OvuPlan Scope allows women with irregular cycles to monitor their oestrogen surge without needing to calculate the length of their cycle. Predicts ovulation in advance. OvuPlan Scope can help identify the rise of oestrogen around 3 days before ovulation. This provides plenty of time to plan your sexual activity. By monitoring results every day, you learn about your own fertility patterns and the changes in your cycle. Excellent value for money. OvuPlan Scope is reusable month after month and does not require a battery for operation. It is a very cost effective way to predict ovulation.NZ delivery is usually within 1-2 business days using tracked courier. Please see About Store for more detailed shipping information and our returns policy. We love happy customers - so please get in touch if you have questions or concerns before leaving feedback! Follow us on Facebook, Twitter and Instagram for product updates and competitions.