ManDown Sensor


ManDown Sensor for automatic emergency calls

The ManDown Sensor can be useful for older persons living alone, but also it can be used as a supplementary protection by persons working in hazardous environments alone. The ManDown Sensor has a tilt sensor which can detect whether the carrier is in a horizontal position. This is, for example, the case when it lies flat on the ground. As soon as this horizontal position exists over a longer period, the sensor sends an automatic alarm. For this purpose, however, it must be a part of an emergency call system and connected to a house service call subscriber station (HTS) or to a NurseCall system. An emergency call is also activated when the central red emergency call button is pressed.

How the ManDown Sensor works

The problem detection and alarm triggering by the ManDown Sensor takes place in two time sections. First, the tilt detection takes place as soon as the sensor measures an inclination of more than 60 degrees. In this case, an internal timer will run for about 10 seconds unless a vertical position is reached again, which will reset the timer. If during this time the sensor does not return to a vertical position, an acoustic signal is triggered, which serves as a pre-alarm. This pre-alarm is used to avoid a possible false alarm. This pre-alarm is aborted when the sensor returns to the vertical position or the carrier presses the emergency call button. With this, a help call can be sent out at any time. The use is particularly user-friendly.

Battery monitoring is automatic

The LED indicator on the ManDown Sensor flashes every ten seconds, indicating that the sensor is working. If the indicator light flashes green, the battery is working. If it does not flash, but instead appears in red, the battery voltage is too low and the battery must be replaced. The usual life span is two years.

Key information for the ManDown Sensor at a glance:

Dimensions (H x L x W)75 x 40 x 23mm
Weight43 g
Frequency869,2125 MHz
Tilt sensorMercury-free type with activating at a 60° angle with vertical
Pre-alarm10 seconds of detection, followed by 30 seconds of signal before automatic activation
Power supply3V lithium battery CR1/2AA
ConsumptionStand-by mode: < 13 μA
When deactivated : < 5 μA
Battery lifetimefrom six months to two years, depending on operation and the number of detections performed
Battery alarmat approx. 20 % remaining
Automatic battery testdaily check and at every alarm
Automatische batterijtestat approx. 20 % remaining
Permissible temperature5 °C to 35 °C
Stability< 2.5 kHz
AntennaIntegrated loop
Radiated power2 mW
Transmission timeBosch protocol: 1 x 700 ms
TeleAlarm protocol: 3 x 700 ms
Pause between transmissions800 ms
Short term storage (less than two weeks)Deactivate the sensor

Documents for download: