TSG 8781 - Alarm system GROTHE - Free user manual and instructions
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| Product Type | Alarm System |
| Brand | GROTHE |
| Model | TSG 8781 |
| Category | Alarm System |
| Power Supply | 230 V AC, 50 Hz |
| Backup Battery | 9 V DC rechargeable battery |
| Wireless Frequency | 868 MHz |
| Wireless Range | Up to 150 m in open field |
| Alarm Zones | 4 programmable zones |
| Siren Volume | 105 dB |
| Included Sensors | Magnetic door/window contacts |
| Smartphone Integration | Optional Wi-Fi module |
| Dimensions | 120 x 80 x 30 mm |
| Weight | 350 g |
| Operating Temperature | -10°C to 45°C |
| Protection Class | IP30 |
| Installation | Surface-mounted |
| Maintenance | Check batteries quarterly |
| Cleaning | Wipe with a soft dry cloth |
| Safety | Intrusion detection and alarm |
| Spare Parts | Available from manufacturer |
| Repairability | Modular design for ease of repair |
Frequently Asked Questions - TSG 8781 GROTHE
How do I reset the GROTHE TSG 8781 alarm system?
To reset the alarm system, press and hold the reset button on the main unit for 10 seconds until you hear a beep. This will restore factory settings and clear all programmed sensors and zones.
Can I install the alarm system myself?
Yes, the TSG 8781 is designed for surface-mounted installation. You can mount the main unit with screws and attach the sensors to doors or windows using the included adhesive pads or screws.
How long does the backup battery last?
The backup battery provides power for up to 8 hours in case of a mains failure. After that, the system remains operational as long as the battery has charge. We recommend checking the battery status regularly.
How do I change the batteries in the sensors?
Each wireless sensor is powered by a CR2032 coin cell. To replace it, open the sensor housing, remove the old battery, and insert a new one with the correct polarity, then close the housing securely.
Does the system support smartphone notifications?
The base unit includes an optional Wi-Fi module that allows push notifications to your smartphone via the GROTHE app. This requires a stable internet connection and the module must be installed.
What is the maximum wireless range between sensors and the main unit?
The wireless range is up to 150 meters in open field conditions. Inside buildings, the range may be reduced by walls and metal objects. Ensure sensors are within range.
How do I test the siren and sensors?
Use the test mode on the control panel. Press the test button to check each sensor; the main unit will emit a short beep. The siren can be tested by triggering a sensor while the system is in disarmed state.
Is the alarm system expandable?
Yes, the TSG 8781 supports up to 4 zones and you can add additional sensors such as motion detectors or smoke detectors that are compatible with the same wireless frequency.
What should I do in case of false alarms?
First, identify which sensor triggered the alarm. Check for moving objects or pets in the area. You can adjust the sensitivity of the sensors or add a delay time to avoid false triggers. Contact support if the issue persists.
How should I clean the device?
Clean the main unit and sensors with a soft, dry cloth. Do not use water, abrasive cleaners, or solvents. Ensure the device is disconnected from the power supply before cleaning.
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USER MANUAL TSG 8781 GROTHE
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Product information
Brand : GROTHE
Model : TSG 8781
Category : Alarm system