Pulsar Technologies [I] Private Limited manufactures Weather Proof Transducer for 4 Strokes. Pulsar Technologies [I] Private Limited is an ISO 9001:2000 certified company. The Weather Proof Transducer for 4 Strokes is rugged and tampers proof. These are specifically designed to convert the mechanical revolution into electrical pulses. The Weather Proof Transducer for 4 Strokes is used in auto rickshaws.