ELECTRICAL SAFETY EQUIPMENT AND PPE
D-TUERI / D-WATCH personal electric field alarms 1–400 kV
Country: Spain · Model: D-TUERI / D-WATCH
The D-TUERI and D-WATCH personal alarms warn a worker by light and sound when approaching live AC parts from 1 to 400 kV. The D-TUERI sensor is fixed on the helmet, and the D-WATCH for 1–10 kV is made for switching stations and areas with limited mobility.
- D-TUERI PRO 7.9/69 kV
- triggers at ≈ 2 m at 7.9 kV and ≈ 5 m at 69 kV
- D-TUERI PRO 25 kV
- for high-speed railways 25 kV AC, ≈ 2.7 m
- D-TUERI PRO 66/138 kV, EXPERT 10/66 kV
- extended ranges
- D-TUERI DUAL
- two modes: 7.9/69 kV and 66 / 110 / 220 / 400 kV (≈ 5 m at 400 kV); range 7.9–220 kV (400 kV version)
Technical specifications
| D-TUERI PRO 7.9/69 kV | triggers at ≈ 2 m at 7.9 kV and ≈ 5 m at 69 kV |
|---|---|
| D-TUERI PRO 25 kV | for high-speed railways 25 kV AC, ≈ 2.7 m |
| D-TUERI PRO 66/138 kV, EXPERT 10/66 kV | extended ranges |
| D-TUERI DUAL | two modes: 7.9/69 kV and 66 / 110 / 220 / 400 kV (≈ 5 m at 400 kV); range 7.9–220 kV (400 kV version) |
| D-WATCH | 1–10 kV, ≈ 40 cm at 1 kV and 2 m at 10 kV, for switching and transformer substations |
| Frequency | 50 and 60 Hz |
| D-TUERI DUAL power supply | Li-ion 3.7 V 1050 mAh, USB charging |
| Protection | IP65 |
| COMBO kits | D-TUERI + D-WATCH in a metal case |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The omnidirectional D-TUERI sensor is placed inside or outside the helmet, depending on its design, and continuously monitors the electric field strength. When the distance to a live part becomes dangerous, light and sound signals are switched on, their frequency rises as the worker gets closer, and the signal does not stop until the worker leaves the danger zone. Such monitoring is needed by network companies, substation and railway staff, and contractors servicing overhead lines and switching stations during inspections, cleaning and repairs. The basic D-TUERI PRO 7.9/69 kV model responds at about 2 m from 7.9 kV parts and about 5 m from 69 kV parts. The DUAL 7.9/69 kV – 400 kV version has IP65 protection, a light output of 2 W and is supplied in an insulated case with a pouch, a charger and a USB cable. The D-WATCH gives only an audible signal and stays active all the time.
How to choose
The model is chosen by the voltage class of the site and by how close one must come to live parts. For 25 kV AC high-speed railways there is the D-TUERI PRO 25 kV that triggers at about 2.7 m, and the PRO 66/138 kV and EXPERT 10/66 kV have extended ranges. Besides the 7.9/69 kV mode, the dual-mode DUAL units have a less sensitive mode for 66, 110, 220 or 400 kV, so a high-voltage line worker can come closer, and in the 400 kV mode the signal appears at about 5 m. The COMBO kits contain a D-TUERI and a D-WATCH in a metal case.
Request a price and lead time
D-TUERI / D-WATCH personal electric field alarms 1–400 kV. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Does D-TUERI replace checking for absence of voltage with a voltage detector?
No, the alarm only warns of a dangerous approach and complements the voltage detector, which is still used to check the absence of voltage before earthing.
Where can D-TUERI DUAL 7.9/69 kV – 400 kV be used?
At switching stations, transformer substations, substations and overhead AC lines of 7.9–220 kV at 50 and 60 Hz.
How is the D-TUERI DUAL battery charged?
The 3.7 V Li-ion battery of 1050 mAh is charged with a USB cable from the charger supplied in the kit.
At what distance does D-WATCH warn of a 10 kV voltage?
At about 2 m, and near 1 kV parts the audible signal appears at a distance of about 40 cm.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.