Frontier digital timer programmable controller TM-619-2-h. Replaceable battery. This 24 hour timer switch suitable for water heater, water dispensers, street lamp, staircase lamp, advertising lamp boxes, breed aquatics, irrigation, agriculture, office power auto control, in anywhere need time control in civilian, home or industrial, etc. It can be used to set 17 programs to control on and off of electric appliance in 24 hours .It can be programmed to avoid the peak of power and it can distribute power in time limit to save energy. Features: 17 on or off programs can be set per day. Easy to replace battery. Option to select days oy days of the week on which the programmed functions to be performed. LED power indicator. Manual over ride switch. LCD on screen displays on and off switching status. With lithium battery inside for memory back up. With daily weekly and impulse programs. time switch with LCD display 4 pin. Easy connection settings. Technical Specifications: Input voltage is 200 ~ 250 VAC, frequency is 50/60Hz. Contact: Single pole, single throw 30 A, 250 V AC or 20 A, 30V DC. Running Accuracy: 1 second or day at 20 degree Celsius. Minimum time setting is 1 minute. Load resistive 30A, inductive 20A. Memory back up lithium battery inside the timer. To be charged 3 hours before first use. Package Contents: Original box, net weight 80 grams, packaging weight 105 grams. Colour: White and grey.