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alarms or thermostats
Bee houses can be a simple way to do something to help our declining bee population
odour and sediment reduction
6 refills last around 400 days
so that it fully fills and covers a room
Gigahertz-Solutions MK20 | Measuring kit emf alarms or thermostatsLow frequency (EMF): 16 Hz 100 kHz High frequency (RF): 800 MHz 2. 7 GHz Contains the instruments ME3830B and HF35C in a rugged plastic case and allows an easy evaluation of the personal exposure to HF and LF electrosmog according to the guidelines and recommended safe values of the "Standard of Building Biology Measuring Techniques" ( Maes, IBN). With the very useful feature of an acoustic analysis for a reliable identification of various HF sources.
US$ 335.48
US$ 197.45
US$ 128.95
US$ 25.00
