[Package details] The package contains the urine pad, 2 transmitters and 1 receiver. Urinary mat: 21.7x35in, outside length 39.4in [Advantages of the bedwetting nursing system] When the patient wets the bed or has enuresis for a few seconds, the alarm will sound and call the nursing staff to change the sheets or clothes; when the patient needs help, gently press the transmitter button to actively seek help [Safety and durable urine alarm pad] Must be under the sheets , the induction pad is a special double-sided waterproof insulation and durable care pad, this sensor pad uses special conductive graphite printed circuits and has passed brine and weak alkaline Liquid test, limited by temperature, soft material, substrate, and printing ink in line with relevant environmental requirements. [Simple operation and convenient use] When the mattress is wet, you can wipe it with a rag or wash it with detergent. Do not use 84 disinfectant. Do not expose it to the sun or bake and wipe it with a wet towel when cleaning. It cannot be folded casually to avoid damage to the circuit. [Applicable people] The urinary pad sensor has a large detection area, mainly for the care of patients, paralyzed patients, old people, depth sleepers. When the patient has a few seconds, the amount of urine is detected and alert, reminding the caregiver to replace underwear and bed lines in time, which is beneficial to the patient's health.