One for two, one for three, home wireless indoor and outdoor thermometers, electronic wireless refrigerator thermometers, cold storage $ 10.59 Product information Specifications One for one, one for two, one for three Temperature resolution 0.1 Accuracy class 1.0 Use battery No. 7 battery X2 No. 5 battery X2 This thermometer can be driven by one (one main unit with one sub-machine) or two (one main unit with two sub-machines). Measure the temperature simultaneously. The page price is a one-for-one price. Main function description: Both the host and the slave have the following functions: measuring temperature * memorizing the minimum/maximum temperature values. * high temperature alarm (the temperature exceeds the preset value will give an audible alarm) * low temperature alarm (the temperature will be below the preset value will give an audible alarm). Indoor temperature range: 0C~+60C. Outdoor temperature range: -40C~+60C. Accurate temperature value: +/-1.0 Power supply (host): 27 batteries. Power supply (handset): 25 batteries. Weight: One-to-one gross weight 180g, net weight 138g, one-to-two gross weight 220g, net weight 178g. One for three weights to be updated. Wireless range: 100 meters without interference. caveat: Do not install reverse battery positive and negative poles. Avoid direct rain on the wireless transmitter. How to install outdoor sensors: Note: In order to receive the true temperature value, avoid installing the sensor directly in the sun. We recommend that you install the remote sensor on a wall facing north outdoors. Before installing on the wall, order a screw with 5 mm of the screw head, and then install the outdoor sensor on the screw. The electronic part of the outdoor sensor has a layer of moisture-proof synthetic resin to protect the circuit. But the sensor is not waterproof, so you should avoid direct rain.
