The fires of peatlands on oil palm plantations are very vulnerable to occur in the dry season. Fires will arise due to a decrease in the surface of the water resulting in the top layer of peatland becoming dry. Manually monitoring ground level is very difficult. The solution is to make a remote water level monitoring prototype in order to be able to regulate irrigation on peat land and make the system open and close the irrigation door during the dry season and when the rainy season arrives. The design of groundwater level monitoring uses a program installed on the Arduino Uno microcontroller.Water level data is sent by prototype via GSM SIM 800L network, 8 level conditions that have been determined from a depth of 15 cm multiples of five so on to 55 cm. HC-SR04 Ultrasonic Sensor is a detector for water level. Data can be accessed at any time via SMS by sending "Check" to the prototype. The results of the tests performed indicated that the tool can function in accordance with the design and send information as well as receive monitoring orders.

Electrical parameters such as voltage, current, power, energy, frequency, and power factor are parameters needed in the operation of an electrical system and machinery. The measurement results provide an overview of the system performance and indicator of abnormal or faulty operations. Nowadays, the electrical parameter instruments grow rapidly with a wide range of features and capability, started from analog instruments to digital measurement with data logging features. This paper reviews the availability of electrical parameter instruments and data logger systems in Indonesia. The review includes technical specifications of instruments, manufacturers, vendors, and data logging features. The data were obtained from vendor publications, manufacturers, scientific publications, and e-commerce websites in Indonesia. The information regarding the availability of the instruments and data logger systems will provide a quick reference in choosing instruments for a certain application to suit the purpose of the measurement and also the cost of the device. Moreover, the information also can provide benchmarks for research and development of low-cost multichannel data logging systems with additional features such as remotely accessible through the implementation of the internet of things.