SSP:  £29.90
                                    
                                    
                                        
                                        Part No: P-VS03
                                    
                                 
                                
                             
                            
                            
                            
                            
                                
                                
                                
                                This tiny device serves three functions. It is a Battery Monitor warning you if you forget to switch off the receiver battery. It is a Voltage Monitor for 4.8v receiver packs, warning you if voltage drops too low. Finally it is a Crash Alarm, providing an audible aid in finding a lost model.