PH meter served the functions that measures the acidity or alkalinity of our soils. Due different plants suits growing under different grades of pH levels. Thus it's good to have a pH meter to check our soil from time to time.For PayNow / Bank Transfer:Option 1. OCBC PayNow:Send payment via: Unique Entity Number ("UEN")UEN: 201730192NEntity Name: E-Farmer Market Pte. Ltd.Please indicate last 5 digits and/or letters of invoice ID under Comment to Payee. Option 2. Internet banking transfer:- Beneficiary: E-Farmer Market Pte. Ltd.- Bank code: 7339- Branch code: 712- Account No: 712498864001- Bank Name: Oversea-Chinese Banking Corporation Limited Please indicate last 5 digits and/or letters of invoice ID.