Oregon Scientific Thermo/hygrosensor THGR 328N for AWS 888, BAR 998HG, BAR 988 HG, BAR 933 HG, BAR 926 HG, BAR 826 HG, MR 238, BAR 383 HG : Amazon.nl: Garden
Oregon Scientific THGR268; Wireless Temperature & Humidity Sensor, RF transmission Frequency : 433 MHz; Number of channels : 3; RF transmission Range : maximum 30 meters; Temperature sensing cycle : around 40 seconds (THGR268 TH-GR268 THGR-268 THG-R2