The ESCL-10VT is a single channel vibrating wire data logger, designed for monitoring a single vibrating wire sensor (including temperature) such as a piezometer, crack meter or displacement transducer. This data logger uses a Bluetooth modem to interface with Mobile phone. Data logger can be connected through mobile phone using ESCL-10VT application software running on mobile phone. The data logger can additionally monitor barometric pressure and rainfall, using a tipping bucket rain gauge.